US3699607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet cleaning apparatus
Assignee: TOWN AND COUNTRY CLEANERS FRANCH
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Filing: 1970-07-07
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Granted: 1972-10-24
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Expires: 1990-07-07
Abstract
Abstract Apparatus for cleaning floor surfaces, especially carpets, with a cylindrical brush, a plurality of fluid nozzles directed tangentially adjacent the brush near floor level, and a vacuum nozzle for retracting the fluid from the floor surface, all of which are arranged cooperatively to retract a surprisingly large percentage of the moisture from the floor surface.
Inventors
- 👤 Frank E Putt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:29
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4063; A47L11/4069; A47L11/29; A47L11/30; A47L11/302; A47L11/34; A47L11/4036; A47L11/4041; A47L11/4044; A47L11/4077; A47L11/408; A47L11/4083; A47L11/4088
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
196 words
Apparatus for cleaning floor surfaces, especially carpet, said apparatus comprising: a. a frame having a handle extending generally obliquely therefrom; b. a generally cylindrical brush with bristles mounted to the frame to engage the floor surface for rotation about a horizontal axis that is substantially perpendicular to said handle; c. a plurality of fluid nozzles carried by the frame in a row parallel to said horizontal axis of the brush, and located on the side of the brush wherein its bristles rotate toward the floor surface as the brush rotates with the outlets of said nozzles positioned to spray fluid toward the floor surface near the engagement of the brush with the floor; d. a vacuum nozzle carried by the frame to be positioned adjacent the floor surface and located on a side of the brush opposite said fluid nozzles for extractIng fluid from the floor surface; e. power means carried by the frame and connected with the brush for rotation thereof; f. conduit means in fluid communication with the fluid nozzles for receiving and supplying pressurized fluid thereto; g. means for supplying fluid under pressure to said conduit means for spraying fluid from said nozzles.
Claim 2
Dependent Claim
196 words
Apparatus for cleaning floor surfaces, especially carpet, said apparatus comprising: a. a frame having a handle extending generally obliquely therefrom; b. a generally cylindrical brush with bristles mounted to the frame to engage the floor surface for rotation about a horizontal axis that is substantially perpendicular to said handle; c. a plurality of fluid nozzles carried by the frame in a row parallel to said horizontal axis of the brush, and located on the side of the brush wherein its bristles rotate toward the floor surface as the brush rotates with the outlets of said nozzles positioned to spray fluid toward the floor surface near the engagement of the brush with the floor; d. a vacuum nozzle carried by the frame to be positioned adjacent the floor surface and located on a side of the brush opposite said fluid nozzles for extractIng fluid from the floor surface; e. power means carried by the frame and connected with the brush for rotation thereof; f. conduit means in fluid communication with the fluid nozzles for receiving and supplying pressurized fluid thereto; g. means for supplying fluid under pressure to said conduit means for spraying fluid from said nozzles.
Claim 3
Dependent Claim
29 words
The apparatus defined by claim 1 which further comprises a roller connected with the frame and engaging the floor for supporting a portion of the weight of the apparatus.
Claim 4
Dependent Claim
33 words
The apparatus defined by claim 1 which said frame comprises an exterior shell extending downward to define an exterior periphery at substantially floor surface level to increase the suction of the vacuum nozzle.
Claim 5
Dependent Claim
26 words
The apparatus defined by claim 1 which further comprises an inner shield surrounding the brush and the fluid nozzles to confine fluid flow around the brush.
Claim 6
Dependent Claim
192 words
For use in cleaning floor surfaces, especially carpets, with apparatus that includes a hot water supply, a pump to transfer the hot water, and a vacuum means to retract the water, the combination of: a. a frame; b. a rotatable brush mounted to the frame to engage the floor surface while rotating about a substantially horizontal axis; c. one or more fluid nozzles carried by the frame and located on the side of the brush wherein its bristles rotate toward the floor surface as the brush rotates, said fluid nozzles having outlets directed toward said brush and the floor surface for spraying hot fluid downward to the floor surface near the engagement of the brush with the floor surface; d. a vacuum nozzle carried by the frame on a side of the brush opposite said fluid nozzles and positioned to extend adjacent the surface of the floor; e. a portion of said frame extending downward in the form of a peripheral shell to substantially floor level to enclose the fluid nozzles, the brush and the suction nozzles; f. power means carried by the frame and connected with the brush for rotation thereof.
Claim 7
Dependent Claim
192 words
For use in cleaning floor surfaces, especially carpets, with apparatus that includes a hot water supply, a pump to transfer the hot water, and a vacuum means to retract the water, the combination of: a. a frame; b. a rotatable brush mounted to the frame to engage the floor surface while rotating about a substantially horizontal axis; c. one or more fluid nozzles carried by the frame and located on the side of the brush wherein its bristles rotate toward the floor surface as the brush rotates, said fluid nozzles having outlets directed toward said brush and the floor surface for spraying hot fluid downward to the floor surface near the engagement of the brush with the floor surface; d. a vacuum nozzle carried by the frame on a side of the brush opposite said fluid nozzles and positioned to extend adjacent the surface of the floor; e. a portion of said frame extending downward in the form of a peripheral shell to substantially floor level to enclose the fluid nozzles, the brush and the suction nozzles; f. power means carried by the frame and connected with the brush for rotation thereof.
Claim 8
Dependent Claim
29 words
The apparatus defined by claim 5 which further comprises a roller connected with the frame and engaging the floor for supporting a portion of the weight of the apparatus.
Claim 9
Dependent Claim
26 words
The apparatus defined by claim 5 which further comprises an inner shield surrounding the brush and the fluid nozzles to confine water flow around the brush.
Claim 10
Dependent Claim
185 words
For use in cleaning floor surfaces, especially carpets, with apparatus that includes a hot water supply, a pump to transfer the hot water, and a vacuum means to retract the water, the combination of: a. a frame; b. a rotatable brush mounted to the frame to engage the floor while rotating about a substantially horizontal axis, the brush having a diameter of at least four inches, bristles at least one to five inches long and a composition equivalent to polyester fibers, the speed of rotation being in a range of substantially 400 to 650 r.p.m.; c. fluid nozzles carried by the frame and located on the side of the brush wherein its bristles rotate toward the floor surface as the brush rotates, said fluid nozzles being directed to spray fluid toward the floor surface near the engagement of the brush with the floor surface; d. a vacuum nozzle carried by the frame on a side of the brush opposite said fluid nozzles and positioned to extend adjacent the floor surface; e. power means carried by the frame and connected with the brush for rotation thereof.
Claim 11
Dependent Claim
185 words
For use in cleaning floor surfaces, especially carpets, with apparatus that includes a hot water supply, a pump to transfer the hot water, and a vacuum means to retract the water, the combination of: a. a frame; b. a rotatable brush mounted to the frame to engage the floor while rotating about a substantially horizontal axis, the brush having a diameter of at least four inches, bristles at least one to five inches long and a composition equivalent to polyester fibers, the speed of rotation being in a range of substantially 400 to 650 r.p.m.; c. fluid nozzles carried by the frame and located on the side of the brush wherein its bristles rotate toward the floor surface as the brush rotates, said fluid nozzles being directed to spray fluid toward the floor surface near the engagement of the brush with the floor surface; d. a vacuum nozzle carried by the frame on a side of the brush opposite said fluid nozzles and positioned to extend adjacent the floor surface; e. power means carried by the frame and connected with the brush for rotation thereof.
Claim 12
Dependent Claim
29 words
The apparatus defined by claim 8 which further comprises a roller connected with the frame and engaging the floor for supporting a portion of the weight of the apparatus.
Claim 13
Dependent Claim
33 words
The apparatus defined by claim 8 which said frame comprises an exterior shell extending downward to define an exterior periphery at substantially floor surface level to increase the suction of the vacuum nozzle.
Claim 14
Dependent Claim
26 words
The apparatus defined by claim 8 which further comprises an inner shield surrounding the brush and the fluid nozzles to confine water Flow around the brush.
Claim 15
Dependent Claim
157 words
Apparatus for cleaning floor surfaces, especially carpets, comprising: a frame having a front end and a handle extending from a back end thereof; a brush mounted to engage the floor surface for rotation about a generally horizontal axis; means carried by the frame for rotating said brush in a given direction relative to said frame; a plurality of fluid nozzle means carried by the frame generally parallel to the axis of rotation of said brush and located on the back side of the brush wherein the brush bristles rotate toward the floor surface as the brush rotates; said fluid nozzle mans having outlets positioned to direct fluid toward the floor surface near the engagement of the brush with the floor surface; a vacuum nozzle fixedly carried by the frame on the front side of the brush opposite said fluid nozzle means and positioned to be located adjacent the floor surface for extracting fluid from the floor surface.
Claim 16
Dependent Claim
157 words
Apparatus for cleaning floor surfaces, especially carpets, comprising: a frame having a front end and a handle extending from a back end thereof; a brush mounted to engage the floor surface for rotation about a generally horizontal axis; means carried by the frame for rotating said brush in a given direction relative to said frame; a plurality of fluid nozzle means carried by the frame generally parallel to the axis of rotation of said brush and located on the back side of the brush wherein the brush bristles rotate toward the floor surface as the brush rotates; said fluid nozzle mans having outlets positioned to direct fluid toward the floor surface near the engagement of the brush with the floor surface; a vacuum nozzle fixedly carried by the frame on the front side of the brush opposite said fluid nozzle means and positioned to be located adjacent the floor surface for extracting fluid from the floor surface.
Claim 17
Dependent Claim
50 words
The apparatus of claim 12 comprising: means for supplying fluid under pressure to said fluid nozzle means for spraying fluid toward the floor surface near the engagement of the brush with the floor surface, and vacuum means for extracting fluid from the floor surface by way of said vacuum nozzle.
Claim 18
Dependent Claim
32 words
The apparatus of claim 13 wherein: said frame comprises an exterior shell extending downward to define an exterior periphery to substantially floor surface level to increase the suction of said vacuum nozzle.
Claim 19
Dependent Claim
24 words
The apparatus of claim 14 comprising: an inner shield surrounding said brush and said fluid nozzle means to confine fluid flow around said brush.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |