In one aspect, food transport systems are described herein. In some embodiments, such a system comprises an interior compartment defined by a floor, one or more side walls, and optionally a lid. The lid has open and closed configurations. The lid, or a bottom surface thereof, is in facing opposition to the floor when the lid is in the closed configuration. The side walls comprise fold lines or seams substantially parallel to the floor. Further, the side walls have reduced thickness or rigidity or self-supporting ability at the fold lines. The interior compartment has an extended configuration and a folded configuration. When the interior compartment is in the extended configuration, the side walls are substantially orthogonal to the floor. When the interior compartment is in the folded configuration, the side walls are folded or collapsed onto themselves along the fold lines, in a direction orthogonal to the floor.

In one aspect, a food delivery temperature charging system, temperature charging cradle systems and food transportation system are described herein. In some embodiments, the food delivery temperature charging system contains a temperature charging cradle system including a base unit including a first temperature adjustment unit generating hot or cold air, a backing affixed to the base unit, and a channel duct affixed to the backing, wherein the first temperature adjustment unit is connected to the channel duct so that the channel duct permits free flow of the first temperature medium to a charging station. The food delivery temperature charging system further includes a charging station containing a horizontal shelf for holding a food storage system including a shelf temperature medium portal, which is connected to a channel duct so that the first temperature medium is conveyed from the fully enclosed channel duct to the temperature medium portal.

A PTC heating device for introduction into a receiving pocket of an electric heating device includes at least one PTC element, a conductor track that is electrically connected to the PTC element, and insulating layers that are abutted in a thermally conductive manner against the PTC element. A frame-shaped casing joins the at least one PTC element, the conductor track, and the insulating layers as a unit. The frame-shaped casing has a leading frame member with elastic guide tabs which, in an initial assembly state, project on oppositely disposed sides of the frame-shaped casing over the heat-emitting open surface respectively associated with them, which are inclined obliquely from the leading frame member in a direction of the open surface, and which are elastically pivotable. During heating device assembly, the PTC heating device is centered and guided by the elastic guide tabs when introduced into a heating rib of a heating chamber.

Systems and methods are involved for an enhanced heating system includes (I) an enclosure, (II) a burner, (III) an electrically-powered fan, (IV) a wall partition, and (V) a thermoelectric generator to generate electrical power for the electrically-powered fan. In addition, other aspects are described in the claims, drawings, and text forming a part of the present disclosure.

An electric fireplace (1210) includes a fireplace housing (412) and a heater assembly (1226) that is configured to generate heated air. The heater assembly (1226) is configured to be installed substantially within the fireplace housing (412). In various embodiments, the heater assembly (1226) includes a heater body (1245), and a grill cover (1248) that is couplable to the heater body (1245). The grill cover (1248) includes a cover body (1295) that is couplable to the heater body (1245), and at least one extender (1296) that is configured to be positioned substantially adjacent to the cover body (1295). The cover body (1295) has a first cover length. The cover body (1295) and the at least one extender (1296) cooperate to have a second cover length that is greater than the first cover length. The second cover length is substantially equal to a dimension of the fireplace housing (412).

An apparatus, system and method for dispensing underfill to components on a printed circuit board. The apparatus, system and method may include an underfill chamber having an input through which the printed circuit board is received; at least one dispensing robot capable of dispensing the underfill to the components; a lower heater suitable to substantially evenly heat at least half of or the entirety of an underside of the printed circuit board once the printed circuit board is within the underfill chamber; and an overhead heater capable of heating up to half of a topside of the printed circuit board once the printed circuit board is within the underfill chamber.

An air conditioner may include a casing having an inner air flow space defined therein and an entrance defined in one of a first side plate or a second side plate, a heat exchanger and a fan disposed between an outdoor air inlet body and an air outlet body in an air flow direction of the casing, a heater module inserted through the entrance into the inner air flow space, a handle mounted on one side face among both side faces of the heater module, one side face of the both side faces being closer to the entrance than the other side face thereof, a pair of guide brackets installed in the casing to slidably guide the heater module, and a door module that opens and closes the entrance. The door module may be configured to contact the handle to press the handle in a direction away from the entrance.

A centrifugal protective hair blower, comprising a plastic shell for wrapping powered devices of the blower, wherein the plastic shell is made of polycarbonate casting; an electric heating device which is arranged in the plastic shell of the hair blower, composed of a two to three sections electric heating wire, and is used to control the blowing temperature of the hair blower; a hemispherical picture-shooting mechanism, which includes a trailing measurement device, an image interception device, a data analysis device, a DC drive motor, an optical filter, optical lens and an image sensing device; an electric heating device, which is connected with a vector analysis device, and is used to reduce the blowing temperature of the hair blower when the target type is a cat, a dog or a rabbit. Through the present invention, it is capable of preventing the hair blower from causing unwarranted injury to surrounding pets.

A foothold including a thermoelectric module includes a body having an air channel in which a suction fan is provided and a dissipation channel in which a dissipation fan is provided, and a cover including an air discharge portion disposed on the body. Further, the thermoelectric element is disposed between the dissipation heat sink and the cover.

In a electric space heater, particularly in a relatively low mass portable, freestanding forced circulation air heater, a solid thermal storage element is heated by means of the same electrical heating element used for ordinary output, allowing heat to be stored efficiently and provided later to extend the useful heat output of the heater.