WATER OR STEAM CLEANING APPARATUS AND ACCESSORY FOR VACUUM CLEANER
20250072676 ยท 2025-03-06
Inventors
- Oliver Holmes (London, GB)
- Jordan RIDGLEY (High Wycombe, GB)
- Daniel Innes (Worthing, GB)
- Hugh J. CROGGON (Newbury, GB)
- Jemima L.C. MEIL (Lancaster, GB)
- Joseph Mills (London, GB)
- Sophie Hall (London, GB)
- Joe BAXTER (London, GB)
- Benjamin Brown (Boston, MA, US)
Cpc classification
A47L11/4069
HUMAN NECESSITIES
A47L9/2868
HUMAN NECESSITIES
A47L9/0626
HUMAN NECESSITIES
A47L11/4005
HUMAN NECESSITIES
A46B9/005
HUMAN NECESSITIES
A47L11/4088
HUMAN NECESSITIES
A47L9/14
HUMAN NECESSITIES
A46B17/08
HUMAN NECESSITIES
A47L7/0009
HUMAN NECESSITIES
A46B2200/3033
HUMAN NECESSITIES
International classification
A47L7/00
HUMAN NECESSITIES
A47L9/14
HUMAN NECESSITIES
A46B17/08
HUMAN NECESSITIES
A47L9/06
HUMAN NECESSITIES
A47L9/28
HUMAN NECESSITIES
Abstract
A nozzle assembly for a cleaning apparatus can include a brushroll, a motor disposed within the brushroll and configured to rotate the brushroll, a debris receptacle comprising a debris inlet. A scraper may be disposed above the debris inlet such that the scraper projects into the brushroll. A ramp can be formed on the scraper. The ramp may extend between an outer edge of the scraper above the debris inlet and into an interior region of the debris receptacle. The ramp can include a runoff surface configured to direct debris and liquid removed from the brushroll by the scraper as the brushroll rotates into the debris receptacle at a negative angle relative to a surface being cleaned. A squeegee assembly may be disposed across a full width of the nozzle assembly.
Claims
1. A nozzle assembly for a cleaning apparatus, comprising: a brushroll; a motor disposed within the brushroll and configured to rotate the brushroll; a debris receptacle comprising a debris inlet; a scraper disposed above the debris inlet such that the scraper projects into the brushroll; and a ramp formed on the scraper and extending between an outer edge of the scraper above the debris inlet and into an interior region of the debris receptacle, the ramp comprising a runoff surface configured to direct debris and liquid removed from the brushroll by the scraper as the brushroll rotates into the debris receptacle at a negative angle relative to a surface being cleaned.
2. The nozzle assembly of claim 1, wherein the negative angle relative to the surface being cleaned is between about 0 degrees and about 90 degrees.
3. The nozzle assembly of claim 1, wherein a separation distance between the runoff surface of the ramp and a bottom surface of the interior region of the debris receptacle decreases in a direction away from the debris inlet and toward the interior region of the debris receptacle.
4. The nozzle assembly of claim 1, further comprising a retention component configured to couple the debris receptacle to the nozzle assembly and to retain the scraper in contact with the brushroll.
5. The cleaning apparatus of claim 1, wherein the brushroll comprises a solid core and a microfiber material cover, wherein the scraper projects into the microfiber material cover.
6. The nozzle assembly of claim 1, wherein the scraper is molded from a plastic material.
7. The nozzle assembly of claim 1, wherein the scraper is formed from a metal.
8. The nozzle assembly of claim 1, wherein the debris receptacle comprises: a solid debris compartment for receiving solid debris; and a liquid debris compartment for receiving liquid debris.
9. The nozzle assembly of claim 1, further comprising one or more electrical connectors configured to electrically couple to a power supply of the cleaning apparatus such that the power supply provides power to the motor.
10. A nozzle assembly for a cleaning apparatus, comprising: a brushroll; a motor disposed within the brushroll and configured to rotate the brushroll; a debris receptacle comprising a debris inlet for receiving debris collected by the brushroll as the brushroll rotates; and a squeegee assembly disposed across a full width of the nozzle assembly, the squeegee assembly comprising: a first end comprising a contact surface disposed in continuous contact with an outer surface of the debris receptacle that extends from a bottom region of the debris receptacle to the debris inlet, and a second end configured to contact a surface being cleaned.
11. The nozzle assembly of claim 10, wherein the squeegee assembly further comprises: a rigid frame; a top half coupled to the rigid frame; a lower half configured to flex; and a leading edge disposed at the second end and coupled to the lower half.
12. The nozzle assembly of claim 11, wherein the leading edge is configured to contact the surface being cleaned during a forward movement of the nozzle assembly and to lift from the surface being cleaned during a backward movement of the nozzle assembly.
13. The nozzle assembly of claim 11, wherein the top half and the lower half are constructed of a flexible material, and the leading edge is constructed of a low friction material.
14. The nozzle assembly of claim 13, wherein the flexible material is selected from a group consisting of silicone and thermoplastic elastomer (TPE).
15. The nozzle assembly of claim 13, wherein the low friction material is selected from a group consisting of polytetrafluoroethylene and woven nylon.
16. The nozzle assembly of claim 10, wherein the squeegee assembly is attached to the debris receptacle.
17. The nozzle assembly of claim 10, wherein the brushroll comprises a solid core and a microfiber material cover, wherein the squeegee assembly contacts the microfiber material cover when the cleaning apparatus is in use.
18. The nozzle assembly of claim 17, wherein the solid core of the brushroll comprises one or more ribs configured to cause the nozzle assembly to vibrate to cause fine debris to travel underneath the squeegee assembly.
19. The nozzle assembly of claim 10, wherein the debris receptacle comprises: a solid debris compartment for receiving solid debris; and a liquid debris compartment for receiving liquid debris.
20. The nozzle assembly of claim 10, further comprising one or more electrical connectors configured to electrically couple to a power supply of the cleaning apparatus such that the power supply provides power to the motor.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Reference should be made to the following detailed description which should be read in conjunction with the following figures, wherein like numerals represent like parts.
[0008]
[0009]
[0010]
[0011]
[0012]
[0013]
[0014]
[0015]
[0016]
[0017]
[0018]
[0019]
[0020]
[0021]
[0022]
[0023]
[0024]
[0025]
[0026]
[0027]
[0028]
[0029]
[0030]
[0031]
[0032]
[0033]
[0034]
DETAILED DESCRIPTION
[0035] The present disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The examples described herein may be capable of other embodiments and of being practiced or being carried out in various ways. Also, it may be appreciated that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting as such may be understood by one of skill in the art. Throughout the present description, like reference characters may indicate like structure throughout the several views, and such structure need not be separately discussed. Furthermore, any particular feature(s) of a particular exemplary embodiment may be equally applied to any other exemplary embodiment(s) of this specification as suitable. In other words, features between the various exemplary embodiments described herein are interchangeable, and not exclusive.
[0036] The present disclosure is generally directed to a surface treatment apparatus (e.g., a water or steam cleaning apparatus). One example of a water or steam cleaning apparatus may include a wand having a handle pivotably coupled to a cleaning assembly and a nozzle assembly. In some embodiments, the cleaning assembly includes a liquid reservoir and a pump to urge liquid from the liquid reservoir into either a spray nozzle (for a water cleaning apparatus) or into a steam generator (for a steam cleaning apparatus).
[0037] In some embodiments, the nozzle assembly includes a dirty water tank to collect debris and liquids from a surface to be cleaned, a debris ramp to urge the debris and liquids from the surface to be cleaned into the dirty water tank, a brushroll configured to engage with the surface to be cleaned, a motor disposed within the brushroll, and a spray nozzle (e.g., for the water cleaning apparatus) and/or steam manifold (e.g., for the steam cleaning apparatus). The dirty water tank further includes a scraper disposed above a debris inlet slot on the dirty water tank. The scraper is in contact with the brushroll and is configured to urge debris and liquids from the brushroll into the dirty water tank.
[0038]
[0039]
[0040]
[0041]
[0042] To accomplish this, squeegee assembly 110 includes flexible part 112, which further comprises top half 120 and lower half 122, along with leading edge 116. Top half 120 is coupled with rigid frame 114, while lower half 122 is free to flex in operation. Leading edge 116 is disposed at a front edge of lower half 122 and configured to contact the surface to be cleaned 200 during forward movement. Since lower half 122 is not coupled to rigid frame 114 and given the low friction material used to construct leading edge 116, during backward movement the lower half 122 may flex, causing the leading edge 116 to raise off the surface to be cleaned 200, allowing the debris, e.g., sand 118, to pass underneath leading edge 116 to engage with brushroll 150.
[0043] In some embodiments, flexible part 112 may be constructed of any flexible material, such as silicone or thermoplastic elastomer (TPE). In some embodiments, the leading edge 116 may be constructed of polytetrafluoroethylene (PTFE, one commercial example of which is Teflon branded PTFE, which is marketed by The Chemours Company) or woven nylon.
[0044]
[0045] It may be desirable to allow larger debris to be removed during operation of brushroll 150. To allow for larger debris to be collected by the water or steam cleaning apparatus, a gap exists between the core 156 and the outer edge of the microfiber material 151. In some embodiments, this gap, W1, may be, for example, in the range of about 10 millimeters (mm) to 14 mm. By way of further example, the gap W1 may be in a range of about 8 mm to 12 mm.
[0046]
[0047] The scraper 162 may be constructed of a hard material. For example, in some embodiments, the scraper 162 may be molded from a material such as Acrylonitrile Butadiene Styrene (ABS) or polypropylene. By way of further example, in some embodiments, the scraper 162 may be formed from a metal such as stainless steel or aluminum.
[0048]
[0049]
[0050]
[0051] Since the dirty water tank 160 may be removed and emptied frequently, it may be desirable to make removal of the dirty water tank 160 as easy as possible. Therefore, as shown in
[0052]
[0053] To empty the dirty water tank 160, the user can remove the dirty water tank 160 from the nozzle assembly 102 to reveal and access the empty button 168 for the dirty water tank 160. When the empty button 168 is pressed, the clam shell dirty water tank 160 opens through approximately 90 degrees. The clam shell dirty water tank 160 may be biased (e.g., using a spring) towards the open position. This action flings the debris and liquid out of the dirty water tank 160. This action also makes cleaning of the dirty water tank 160 easier as all dirty surfaces are easy to access. There is a seal on the rear edge 162B to prevent liquid from dripping out of dirty water tank 160 during transport for emptying.
[0054]
[0055] For case of maintenance, it may be desirable to have the squeegee assembly 110 attached to the dirty water tank 160. Therefore, in the embodiment shown in
[0056] During operation, liquid collected in the dirty water tank 160 may tend to slosh around, resulting in liquid spilling out of the dirty water tank 160. To reduce the impact of liquid sloshing in the dirty water tank 160, one or more structures may be incorporated into the dirty water tank 160 to reduce or prevent sloshing during use.
[0057]
[0058]
[0059]
[0060]
[0061] In some embodiments, the microfiber material 151 may incorporate bristles in addition to the microfiber material 151. In some embodiments, the bristles may be randomly distributed, while in other embodiments the bristles may be arranged in a pattern. In yet other embodiments, the microfiber material 151 may include flaps in addition to the microfiber material 151. In some embodiments, the microfiber material 151 may include microfiber composed of multiple materials.
[0062]
[0063]
[0064] The supply tank 1406 is fluidly coupled to the spray nozzle 1410 and/or the manifold 1412. For example, a supply pump 1416 may be configured to urge liquid from the supply tank 1406 to the spray nozzle 1410 and/or the manifold 1412. When steam is generated, the supply pump 1416 may be configured to urge fluid through a steam generator 1418, wherein steam exiting the steam generator 1418 passes through to the spray nozzle 1410 and/or the manifold 1412. As shown, the supply tank 1406 is coupled (e.g., removably coupled) to the neck 1404. However, in some instances, the supply tank 1406 may be coupled to the base 1400.
[0065] The neck 1404 may include one or more neck electrical connectors 1500 for electrically coupling to the power supply 1308 such that the power supply 1308 may provide power to one or more components of the nozzle assembly 1302 (e.g., sensors, the supply pump 1416, and/or a drive motor of the brushroll 1408, such as the brushroll motor 173). In some instances, the one or more neck electrical connectors 1500 may be configured to communicatively couple the hand-held vacuum cleaner 1300 (e.g., a controller 1320 of the hand-held vacuum cleaner 1300) to one or more components of the nozzle assembly 1302 (e.g., sensors, the supply pump 1416, and/or a drive motor of the brushroll 1408, such as the brushroll motor 173).
[0066] The neck 1404 may further include a suction plug 1420 configured to be received within the second end 1316 of the wand 1304. In other words, the suction plug 1420 may be configured to obstruct (or block) a suction path extending within the wand 1304.
[0067]
[0068] As also shown, the second end 1316 of the wand 1304 includes one or more wand electrical connectors 1604 configured to cooperate with the neck electrical connectors 1500. The wand electrical connectors 1604 are configured to be electrically and/or communicatively coupled with the hand-held vacuum cleaner 1300.
[0069] As used in this application and in the claims, a list of items joined by the term and/or can mean any combination of the listed items. For example, the phrase A, B and/or C can mean A; B; C; A and B; A and C; B and C; or A, B and C. As used in this application and in the claims, a list of items joined by the term at least one of can mean any combination of the listed terms. For example, the phrases at least one of A, B or C can mean A; B; C; A and B; A and C; B and C; or A, B and C.
[0070] Unless otherwise stated, use of the word substantially may be construed to include a precise relationship, condition, arrangement, orientation, and/or other characteristic, and deviations thereof as understood by one of ordinary skill in the art, to the extent that such deviations do not materially affect the disclosed methods and systems. Throughout the entirety of the present disclosure, use of the articles a and/or an and/or the to modify a noun may be understood to be used for convenience and to include one, or more than one, of the modified noun, unless otherwise specifically stated. The terms comprising, including and having are intended to be inclusive and mean that there may be additional elements other than the listed elements.
[0071] While the principles of the invention have been described herein, it is to be understood by those skilled in the art that this description is made only by way of example and not as a limitation as to the scope of the invention. Other embodiments are contemplated within the scope of the present invention in addition to the exemplary embodiments shown and described herein. Modifications and substitutions by one of ordinary skill in the art are considered to be within the scope of the present invention, which is not to be limited except by the following claims.