Bedding climate control apparatus and method to operate thereof that incudes a retention unit to retain in position both a flexible air conduit and bedding
10588419 ยท 2020-03-17
Assignee
Inventors
Cpc classification
F24F11/80
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24F13/24
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24F2110/10
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24H3/0411
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24F11/62
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24H3/022
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24F5/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24F11/88
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
A61F7/00
HUMAN NECESSITIES
F24F5/0096
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24F11/61
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24F11/58
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
A47C21/044
HUMAN NECESSITIES
F24F11/52
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F24H3/04
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24F11/62
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24D19/10
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
A61F7/00
HUMAN NECESSITIES
F24H3/02
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24F11/80
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24F11/58
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24F11/61
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24F11/88
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24F11/52
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
A bedding climate control apparatus that delivers, in a quiet manner, forced airflow from a fan/blower within a housing to selectively deliver tempered (heated via a thermal element) forced airflow and non-tempered (room temperature) forced airflow through a flexible air conduit to bedding. A retention unit holds the flexible air conduit in position against movement and simultaneously retains the bedding in place.
Claims
1. A method of assembly of a bedding climate control apparatus, comprising the steps of: stabilizing a paddle of a retention unit in position underneath and against an underside of a mattress; grasping a periphery of an air conduit with an open ring-shaped segment of the retention unit, the open ring-shaped segment defining a space into which fits the air conduit, the open ring-shaped segment extending outward from a riser of the retention unit, the riser elevating the open ring-shaped segment relative to that of the paddle by vertically rising from the paddle to the open ring-shaped segment, the open ring-shape segment having free ends between which is a gap; retaining bedding in position with clamps or clips in a manner that provides access to a space within the bedding; positioning a bedding climate control device that includes a blower or a fan and a thermal element so as to discharge forced airflow into the air conduit that is heated as warranted by the thermal element; inflating the space within the bedding by forced airflow that travels through the air conduit and into the space; and changing a temperature of the inflated space over time by imparting heat from the thermal element into the forced airflow, the thermal element being arranged so that the forced airflow comes into contact with the thermal element.
2. The method according to claim 1, further comprising: operating the bedding climate control device to inflate the space in the bedding yet maintain a noise level generated from operation of the blower or fan at less than 65 decibels at one meter away.
3. The method according to claim 1, further comprising: issuing commands with each of a wireless controller and a wireless protocol access enabled device, the bedding climate control device being responsive to receipt of the commands from both the wireless controller and the wireless protocol access enabled device at the same time to commence operation of the bedding climate control device in accordance with the commands.
4. The method according to claim 1, further comprising: issuing commands with each of a wireless controller and a wireless protocol access enabled device, the bedding climate control device being responsive to receipt of the commands to retrieve recall settings from memory storage rate in accord with the commands and carrying out operation of the bedding climate control device in accord with the retrieved recall settings, the recall settings being selected from the group consisting of time of commencement of the airflow, duration of the airflow, cessation of the airflow, temperature of the airflow, flow rate of the airflow and any combination thereof.
5. The method of claim 1, further comprising: setting an auto-shutoff timer to advance with different maximum time intervals to effect shut off the thermal element and the blower or fan at different times.
6. The method according to claim 1, further comprising: varying a flow rate of the forced airflow within a range of between 40 to 100 cubic feet per minute inclusive at a static pressure within a range of between 0.3 inch of water to 1 inch of water inclusive to create a tenting effect of a top layer of the bedding above a mattress to lift 75% or more of the top layer of the top layer of the bedding via a cushion of air that enables a turbulent airflow to freely distribute the forced airflow throughout a surface area of the bedding surface area, regardless of whether the bedding is smoothly laid or irregularly bunched up.
7. A bedding climate control apparatus, comprising: a retention unit that has a paddle arranged in a manner that stabilizes the retention unit in position underneath and against an underside of a mattress and that has an open ring-shaped segment that grasps a periphery of an air conduit at a location spaced away from an outlet of the air conduit, the open ring-shaped segment defining a space into which fits the air conduit, the open ring-shaped segment extending outward from a riser of the retention unit, the riser elevating the open ring-shaped segment relative to that of the paddle by vertically rising from the paddle to the open ring-shaped segment, the open ring=shaped segment having free ends between which is defined a gap; clamps or clips that retain bedding in position in a manner that provides access to a space within the bedding, and a bedding climate control device that includes a blower or a fan and a thermal element operative to discharge forced airflow into the air conduit that is heated as warranted by the thermal element, the air conduit being arranged to pass the forced airflow into the space within the bedding to inflate same, the bedding climate control device being operative to change a temperature of the inflated space over time by imparting heat from the thermal element into the forced airflow, the thermal element being arranged so that the forced airflow comes into contact with the thermal element.
8. The apparatus according to claim 7, wherein the bedding climate control device is operative to inflate the space in the bedding yet maintain the noise level generated from operation of the blower or fan at less than 65 decibels at one meter away.
9. The apparatus according to claim 7, further comprising: a wireless controller and a wireless protocol access enabled device each configured to issue commands, the bedding climate control device being responsive to receipt of the commands from both the wireless controller and the wireless protocol access enabled device at the same time to commence operation of the bedding climate control device in accordance with the commands.
10. The apparatus according to claim 7, further comprising: a wireless controller and a wireless protocol access enabled device each configured to issue commands, the bedding climate control device being responsive to receipt of the commands to retrieve recall settings from memory storage rate in accord with the commands and carrying out operation of the bedding climate control device in accord with the retrieved recall settings, the recall settings being selected from the group consisting of time of commencement of the airflow, duration of the airflow, cessation of the airflow, temperature of the airflow, flow rate of the airflow and any combination thereof.
11. The apparatus according to claim 7, further comprising: an auto-shutoff timer configured to advance with different time intervals to effect shut off of the thermal element and the blower or fan at different times.
12. The apparatus according to claim 7, wherein said bed climate control device is configured to vary a flow rate of the forced airflow within a range of between 40 to 100 cubic feet per minute inclusive at a static pressure within a range of between 0.3 inch of water to 1 inch of water inclusive to create a tenting effect of a top layer of the bedding above a mattress to lift 75% or more of the top layer of the top layer of the bedding via a cushion of air that enables a turbulent airflow to freely distribute the forced airflow throughout a surface area of the bedding surface area, regardless of whether the bedding is smoothly laid or irregularly bunched up.
Description
BRIEF DESCRIPTION OF THE DRAWING
(1) For a better understanding of the present invention, reference is made to the following description and accompanying drawings, while the scope of the invention is set forth in the appended claims.
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
DETAILED DESCRIPTION OF THE INVENTION
(11) Turning to the drawing,
(12)
(13) The hose 116 may be sheathed by a spandex fabric as depicted in U.S. design patent application Ser. No. 29/501,647, whose contents are incorporated herein by reference. The hose 116 is preferably longitudinally compressible and longitudinally expandable to enable it to bend and yet maintain the dimension of its interior. An embedded steel wire wraps around the length of the hose 116 in a spiral manner that resists radial compression or expansion and thus retains the interior dimension regardless of the bending of the hose 116. For instance, the hose 116 may be bent 180 degrees and the interior dimension remains substantially unchanged. By contrast, a smooth walled hose without such an embedded, spiral wound metal wire feature would collapse on the bend or have a reduced/constricted flow path, There are a number of ways different hoses can achieve outer diameter supportnearly all involve some type of reinforcement in the outer walls, whether it be ribs, grooves, spiral wound wire, or exceptionally thick outer walls (even these will collapse if the bend is enough).
(14)
(15) The open ring-shaped segment 104B may be closed to grasp about a periphery of the hose to prevent horizontal movement of the flexible hose 116. If the ring-shaped segment 104 is corrugated on its inward facing side, the corrugations are sized to enter grooves on the exterior of the flexible hose 116 to retain the flexible hose 116 in position against relative vertical movement where the retention takes place.
(16) The horizontally extending base segment or paddle 104D is elongated and will lie beneath a mattress and provides firm support for the performance of the retaining and holding functions. The vertically extending riser segment 104C extends along an end of the mattress at the foot of a bed. The vertically extending riser segment 104C may be height adjustable by being formed of two sliding elements that slide relative to each other vertically and secured in any relative position with respect to each other in any conventional manner that two sliding pieces may be retained in their relative position with respect to each other, such as with a series of holes in one of the sliding pieces and a spring-loaded button in the other that enters into one of the series of holes when aligned and can be urged manually against spring bias to leave the hole to free the sliding pieces from their relative position.
(17)
(18)
(19)
(20)
(21) An aroma therapy optional scent unit 29A, which may be an aromatherapy device, may be provided to administer aroma or scents into the airflow to provide scented or aromatic air that mixes with the filtered air from the filter 29.
(22) The centrifugal fan/blower 24 is operated to suck in filtered airflow 14 from the air source 14A so as to increase the speed of the filtered airflow 14 through the centrifugal fan/blower 24 to a constant volume flow rate by rotating impellers that cause acceleration of the air radially and a change in the direction of the airflow.
(23) A ceramic PTC heater element 25 heats the filtered airflow as it emerges from the centrifugal fan/blower 24 The thermal element may be a 1500 watt positive temperature coefficient (PTC) heater element 25 using Nichrome wire or ceramic thermal elements sized to 13 Amperes power consumption.
(24) An overheat condition may arise in theory from blockage of the air delivery outlet nozzle 118 if the airflow is left unchecked or from equipment malfunction. This is a reason for detecting the airflow temperature with dual thermistor temperature sensors 204A so that if the temperature gets too close to reaching a burn temperature (an unacceptable overheat condition), a thermal overheat sensor switch 26 triggers to shut off power to the PTC heater element 25.
(25) That is, the response of the thermal overheat sensor switch 26 to a sensing that the overheat condition is imminent is to disrupt the main AC power to thwart the overheat condition from being realized. The thermal overheat sensor switch 26 would be triggered to disrupt the main AC power well in advance of the air temperature actually reaching the burn temperature yet higher than the constant air temperature that the bedding climate control apparatus seeks to maintain.
(26) There is a need to disperse built-up body heat and moisture with a dry and refreshing room temperature breeze in between the sheets and over one's body. Such is readily accomplished with the bedding climate control apparatus 10 by blowing forced air between the top sheet and fitted mattress sheet via the hose with the air delivery outlet nozzle with the forced air (unheated by the ceramic thermal element 25). That is, the ceramic thermal element 25 is shut off so as to avoid heating the air passing through.
(27) A microcontroller 22, which is powered by an AC power source 201, controls the fan/blower 24, PTC heater element 25 in accordance with manual controls or remote signals transmitted by a protocol access enabled remote device 105 such as Bluetooth or WiFi or Zigbee (and/or wireless remote controller) and received via a signal receiver 103, which conveys the received signal to the microcontroller 22 that decodes the received signal. The microcontroller 22 also receives temperature information of the airflow from the dual thermister temperature sensors 204B that sense the temperature of the airflow leaving the centrifugal blower/fan 24. There could be a temperature sensor located at the air delivery outlet nozzle to detect localized high temperature should such arise to trigger another thermal overheat sensor switch 26 to cut off power to the PTC heater element 25.
(28) The heat sink PCB (printed circuit board) and TRIAC assembly 204A serves as the heater driver to drive the heater element 25. A variac has one primary coil and one secondary coil, and the number of effective turns on the secondary is varied by means of a sliding contact that taps the secondary coil along its length. By this means, one can control the output voltage in tiny steps, each equivalent to one turn. The heat sink PCB and triac assembly 204A responds to command signals from the microcontroller 22 to vary the output voltage to drive the PTC heater 25 accordingly to heat at a particular temperature set in accord with the microcontroller 22. The microcontroller 22 issues the appropriate command signals to the heat sink PCB and triac assembly 204A corresponding to the particular temperature based upon inputs from the Bluetooth protocol access enabled remote device 105 and/or wireless remote controller and/or the airflow temperature information sensed by the dual thermister temperature sensors 204B.
(29) The microcontroller 22 sends commands to illuminate LED lights 28 to signify the status of operation, including temperature, error code, on/off status. The microcontroller 22 has logic and circuitry necessary for reaching and maintaining a steady or substantially constant airflow temperature for the airflow provided by the fan/blower 24.
(30) The microcontroller 22 includes a timer module 22A that may be set to any suitable time for heating the volume of air, such as changing the temperature setting hourly to a different temperature for heating purposes.
(31) A unique feature of the invention is the ability to raise the temperature of the bedding/sheets of a king or queen sized bed by 20 degrees F. in less than 5 minutes. This temperature rise gives the user the feeling from the bedding of a hot towel just out of the dryer when entering the bed, which provides comfort and delight to the user. It provides heating to more than 75% of the sleeping surface area of king or queen size bedding (including both lower and upper extremity of the user) with a just a very small (less than 8) protrusion into the bottom of the bed by the air delivery outlet nozzle.
(32) Another feature of the invention is supplying room temperature forced air into the bedding (which is at lower temperature than interior of the bedding due to natural human body heat) and thus the person in the bed experiences a sensation of cooling from the forced air.
(33) The invention has special electronics and relays enabling user on/off control and heating/cooling control via a wireless radio frequency remote control. The wireless remote feature combined with the bed heating invention is considered a key unique element of the function of the system and its use-ability in its application. The invention is intended to be a pre-heater for cold winter beds, raising the temperature of the bed over a period of several minutes before the user enters the bed (although it can be used while the user in the bed). As such the wireless remote enables to user to activate the invention from other parts of the home while preparing for bed, enabling full pre-heat time.
(34) The invention includes a housing, a high pressure variable speed fan/blower/with brushless AC motor, an electric thermal element, special control electronics and a flexible air output hose or duct with unique air delivery outlet nozzle. The invention housing is located near but not in or attached to the bed and a bed sheet retention unit is inserted into the bottom of bed in between the mattress and the bedding (i.e., the user sleeping layer).
(35) Some of the main features of the invention include:
(36) raising the temperature of the bedding/sheets of a king or queen sized bed by 20 degrees F. in less than 5 minutes to give the user the feeling from the bedding of a hot towel just out of the dryer when entering the bed, which provides comfort and delight to the user.
(37) supplying hot air at less than 135 degrees F. to prevent skin burns. Skin burns are prevented by appropriately regulating the airflow and/or the temper of the airflow and/or duration of tempered airflow. For instance, the response upon sensing that the airflow temperature entering the bedding space is too close to skin burn temperature, commands are issued to reduce or shut off power accordingly. That is, the power to the high-pressure variable blower fan to lessen or stop the forded airflow and/or the power to the thermal elements to lessen or stop their tempering of the forced airflow. The duration of the reduction or shutoff may also be regulated through the issuance of appropriate commands.
(38) operating a user adjustable auto-shutoff timer that will shut the unit down after between 3 and 10 minutes of operation.
(39) protecting against reaching burn temperature with thermal over-temperature shut off safety.
(40) utilizing the maximum amount of intermittent current allowed from typical 15 amp household bedroom electrical circuit yet sized to enable maximum speed in heating of bedding.
(41) utilizing Nichrome wire or ceramic thermal elements sized at to 13 Amps power consumption.
(42) using several user adjustable heat settings, as well as adjustable air flow settings
(43) enabling activation of the unit from a distance separated by several rooms in a house with remove RF wireless controls [0085] enabling activation of the unit from smart phones and tablet computers with optional Wi-Fi Bluetooth controls.
(44) heating to more than 75% of the sleeping surface area of king or queen size bedding (including both lower and upper extremity of the user) with a just a very small (less than 8) protrusion into the bottom of the bed of the air delivery outlet duct/flange.
(45) The invention's forced air approach uses a high-pressure variable blower/fan that delivers between 40 to 100 CFM of air flow at minimum 0.3 H.sub.2O static pressure, and up to 1 H.sub.2O static pressure without stalling. The flow rate is variable by user knob setting to accommodate for different bed sizes and bedding types. This very specific flow rate and static pressure has been determined to be the key element necessary to enable the invention to provide even heating to 75% of the bedding surface area of a king or queen size bed with just a small air outlet duct protrusion into the bottom of the bed.
(46) Using this very specific airflow rate and static pressure delivery range, a tenting effect of the top layer of bedding above the mattress is created. 75% or more of the top layer of bedding covering the mattress surface area is lifted from the mattress by several inches via a cushion of air. This cushion of air layer created in between the bedding and mattress enables the turbulent warm air from the invention to freely distribute the heat throughout the bedding surface area. The unique flow rate and static pressure is also a key element for using normal bedding that may become irregularly bunched up or not be smoothly laid on the bed (i.e, a perfectly made bed).
(47) The invention has electronics and relays enabling user on/off control and heating/cooling control via a wireless radio frequency remote control. The wireless remote feature combined with the bed heating invention is considered a key unique element of the function of the system and its use-ability in its application. The invention is intended to be pre-heater for cold winter beds, raising the temperature of the bed over a period of several minutes before the user enters the bed (although it can be used while the user in the bed). As such, the wireless remote enables to user to activate the invention from other parts of the home while preparing for bed, enabling full pre-heat time.
(48) The electronics and relays may enable user on/off control and heating/cooling control via wireless Wi-Fi protocol connection or Bluetooth protocol connection or Zigbee protocol connection, thus enabling smart phone or tablet computers to be utilized as the remote control.
(49) In furtherance of this, the temperature of the forced airflow into the inflated, tented space (between the bed sheet and the fitted mattress sheet) is sensed and transmitted out from the bedding climate control apparatus. The remote control (such as a Bluetooth/Wi-Fi/Zigbee protocol access enabled controller) may be equipped to receive the transmitted sensed temperature over time and undertake an analysis. The analysis may determine that a desired temperature has been reached in which case instructions are transmitted from the remote control to the bedding climate control apparatus to stop the forced airflow. The bedding climate control apparatus is responsive to those instructions to do just that, i.e., shut off the forced airflow. The remote control may be equipped with a display to depict a result of the analysis, such as a graphical representation of a change in the temperature of the inflated, tented space over time.
(50) In addition, the remote control may be programmed or receive instructions from an application that is accessible from the Internet or wireless network to send commands to the bedding climate control apparatus in accordance with settings that were initiated by the user of the remote control. For instance, an increment shut off timer may be set by the user through the programming or via the application accessible on the Internet to provide appropriate settings as to how the bedding climate control apparatus is to attain changes in temperature incrementally over time and shut off the forced airflow as those incremental temperatures are reached over time. The increment shut of timer, whether in the programming or in the application accessible on the Internet, triggers the remote control to send appropriate instructions to the bedding climate control apparatus to carry out the settings over time as they apply. The bedding climate control apparatus responds accordingly by either altering the heating power delivered to the forced airflow or altering a speed of the forced airflow (such as to zero for shutoff or higher or lower that affects the amount of time it will take to reach a desired incremental temperature.
(51) For example, in cooling mode, if the user wanted the temperature of the space to change gradually or rapidly, the speed of the airflow delivery could be varied accordingly to accommodate. On the other hand, in heating mode, if the user wanted the temperature of the space to change gradually or rapidly, then, in addition to varying the speed of the airflow delivery or even to avoid the need to vary the airflow delivery speed, the amount of heat power delivered to the airflow could be varied.
(52) Indeed, the forced airflow may be shut down entirely for a particular period of time after a desired temperature for the inflated, tented space has been reached and resumed as warranted.
(53) Therefore, as shown in
(54) receiving commands with a signal receiver 103 of the bedding climate control apparatus 10 that affect operating parameters of the bedding climate control apparatus 10 and set a desired temperature;
(55) Inflating a space between a fitted mattress sheet and a bed sheet into an inflated configuration by delivery into the space of forced airflow from a centrifugal fan/blower 24, hose 116, and air delivery outlet nozzle 116 (each of the bedding climate control apparatus);
(56) changing the temperature of the inflated space over time to reach the at least one desired temperature by effecting the delivery of the forced airflow into the space subsequent to attaining the inflated configuration and, as warranted, imparting heating power with a thermal element or PTC heater element 25 to the forced airflow all in accordance with the received commands;
(57) sensing with dual thermistor temperature sensors 204B the temperature realized as a result of the changing;
(58) ceasing, under direction from a microcontroller 22, the delivery of the forced airflow from a centrifugal fan/blower 24 after the sensed temperature reaches the desired temperature; and
(59) transmitting feedback such as in the form of the sensed temperature as information sent out from the bedding climate control apparatus. That is, devising the feedback pertains to a condition of the space (e.g., the condition is the temperature of the space after adjustment), which arises as a result of the implementation of the operation of the bedding climate control apparatus. The signal receiver 103 may also have signal transmitting capability to serve as a signal transmitter as well.
(60) The invention as shown in
(61) means 103 for receiving commands with a bedding climate control apparatus 10 that affect operating parameters of the bedding climate control apparatus 10 and identifying at least one desired temperature;
(62) means for inflating a space between a fitted mattress sheet and a bed sheet into an inflated configuration by delivery into the space of forced airflow from a centrifugal fan/blower 24, hose 116, and air delivery outlet nozzle 116 (each of the bedding climate control apparatus);
(63) means for changing a temperature of the inflated space over time to reach the at least one desired temperature by effecting delivery of the forced airflow into the space subsequent to attaining the inflated configuration and, as warranted, imparting heating power (PRC heater element 25) to the forced airflow all in accordance with the received commands;
(64) means for sensing (dual thermistor temperature sensors 204B) the temperature of the inflated space that is realized as a result from the means for changing the temperature;
(65) means (microcontroller 22) for ceasing the delivery of the forced airflow from a centrifugal fan/blower 24 after the sensed temperature reaches the desired temperature; and
(66) means for transmitting feedback such as the sensed temperature as information sent out from the bedding climate control apparatus. The signal receiver 103 may also have signal transmitting capability to serve as a signal transmitter as well.
(67) If desired, a spandex fabric sleeve may sheath the hose 116 of
(68)
(69)
(70) In the inflated configuration, the space receiving the forced air has a periphery bounded by the bed sheet and the fitted mattress sheet. By forcing air into the space via the air delivery outlet nozzle 118, the region of the space that is away from the periphery (e.g, in more of a central region) realizes an adjustment in its temperature or humidify before that of the periphery. In that sense, the forced air delivery reaches the central region of the space faster than conventional approaches that rely on radiative elements or hot or cold fluid tubes to heat or cool the space since they are arranged about the periphery of the space and thus adjust the temperature at the periphery of the space before the central region of the space is affected.
(71) Nevertheless, the present invention as it relates to receiving commands in a wireless manner and transmitting feedback in a wireless manner is not necessarily limited to bedding climate control apparatus that utilize forced air to adjust the temperature of the space between a bed sheet and a fitted mattress sheet. Such a receipt of commands (to act in accord with) and the transmission of feedback (such as the temperature or humidity condition) may be utilized for other kinds forms of heat transfer including conduction, diffusion, convection and radiation. For instance, tubes may be within the mattress that contain a fluid that is either heated or chilled. A blanket may be used that contains radiative heating elements. These may be utilized individually or in combination with each other or with the forced air convection of the preferred embodiment and each may be controlled using the wireless manner of the present invention for receiving commands to implement the heat transfer effect and for transmitting feedback of the sensed heat transfer effect or other pertinent criteria to evaluate the effectiveness of the implementation of the heat transfer effect.
(72) Some examples of how the bedding control apparatus may operate include operating the thermal element to adjust power to maintain a constant set temperature that would be either user set or pre-preprogrammed. The heating power of the thermal element would adjust depending on backpressure changes in the airflow and ambient temperature to maintain the set temperature. The operating may be in a mode where first a heating power is delivered and then automatically after any time a lesser heating power is delivered or, with automatic time shutoff activated, no heating power is delivered at all. If desired, the thermal element may be operated at a certain power and then switched to power off while the fan is still running (for cooling using ambient temperature), Preferably, the operating of the thermal element is such that it is activated or deactivated at a certain preset dock time and operating of the blower or fan (with no heating power from the thermal element) is effected such that it is activated or deactivated at a certain preset clock time or other user programmed event.
(73) While the foregoing description and drawings represent the preferred embodiments of the present invention, various changes and modifications may be made without departing from the scope of the present invention.