Patent US3088331A successfully refreshed from Google Patents.
Patent US4845802A successfully refreshed from Google Patents.
US4845802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet cleaning apparatus
Assignee: SHOP-VAC Corp A CORP OF NEW JERSEY
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Filing: 1988-01-28
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Granted: 1989-07-11
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Expires: 2008-01-28
Abstract
Abstract A carpet cleaning attachment, for use with existing carpet cleaning devices having a flexible attachment hose and a unit capable of extracting both wet and dry materials, the attachment comprising a hollow, elongated, hand-held wand configured at a connection end thereof for connection to the hose and provided at the opposite end with a suction nozzle for being moved across a carpet; a cleaning fluid reservoir mounted on the wand; and a cleaning fluid delivery system carried on the wand for delivering cleaning fluid from the reservoir to a region of the carpet in advance of the moving nozzle.
Inventors
- 👤 Matthew Miller
- 👤 Jonathan Miller
- 👤 Michael B. Woodhall
- 👤 Mark F. Jennings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:07
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/29; A47L11/34; A47L11/40; A47L11/4052; A47L11/4058; A47L7/00; A47L7/0004; A47L7/0009; A47L7/0023; A47L7/0028; A47L7/0038; A47L7/0042
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
152 words
A carpet cleaning attachment, for use with existing carpet cleaning devices having a flexible attachment hose and a unit capable of extracting both wet and dry materials, the attachment comprising hollow, elongated, hand-held wand means configured at a connection end thereof for connection to the hose and provided at the opposite end with suction nozzle means communicating with said connection end for being moved across a carpet to clean said carpet; cleaning fluid reservoir means mounted on the wand means and having a cap; means for creating a pressurized condition in said reservoir means; detecting means for said reservoir means on said cap for detecting said pressurized condition and indicating the pressure thereof; and cleaning fluid delivery means carried on the wand means for delivering cleaning fluid from the reservoir means to a region of the carpet in advance of the moving nozzle means to assist in said cleaning of said carpet.
Claim 2
Dependent Claim
152 words
A carpet cleaning attachment, for use with existing carpet cleaning devices having a flexible attachment hose and a unit capable of extracting both wet and dry materials, the attachment comprising hollow, elongated, hand-held wand means configured at a connection end thereof for connection to the hose and provided at the opposite end with suction nozzle means communicating with said connection end for being moved across a carpet to clean said carpet; cleaning fluid reservoir means mounted on the wand means and having a cap; means for creating a pressurized condition in said reservoir means; detecting means for said reservoir means on said cap for detecting said pressurized condition and indicating the pressure thereof; and cleaning fluid delivery means carried on the wand means for delivering cleaning fluid from the reservoir means to a region of the carpet in advance of the moving nozzle means to assist in said cleaning of said carpet.
Claim 3
Dependent Claim
29 words
A carpet cleaning attachment as in claim 1, further comprising ground engaging means carried on the wand for controlling the attitude of the wand relative to the carpet surface.
Claim 4
Dependent Claim
30 words
A carpet cleaning attachment as in claim 2, wherein said ground engaging means comprises roller means displaceable with respect to the wand into a transport position and an operating position.
Claim 5
Dependent Claim
39 words
A carpet cleaning attachment as in claim 3, wherein said region of the carpet to which said cleaning fluid is delivered is between the suction nozzle and the roller means when said roller means is in said operating position.
Claim 6
Dependent Claim
41 words
A carpet cleaning attachment as in claim 1, where said cleaning fluid delivery means comprises electrically operated pump means for receiving and pumping fluid from the reservoir means, and means for spraying said pumped fluid onto said region of the carpet.
Claim 7
Dependent Claim
60 words
A carpet cleaning attachment as in claim 1, wherein said means for creating a pressurized condition in said reservoir means is manually operated and creates a charge of compressed air in the reservoir means, and said cleaning fluid delivery means comprises means for spraying said fluid onto said region of the carpet under pressure of said charge of compressed air.
Claim 8
Dependent Claim
37 words
A carpet cleaning attachment as in claim 6, wherein said detecting means for said reservoir means detects said charge of compressed air and is outwardly projected from said reservoir means for indicating the pressure of said charge.
Claim 9
Dependent Claim
32 words
A carpet cleaning attachment as in claim 7, wherein said detecting means further comprises vent means for venting said charge from said reservoir means when said charge pressure reaches a predetermined value.
Claim 10
Dependent Claim
35 words
A carpet cleaning attachment as in claim 1, wherein said roller means is flush against said wand means, between said suction nozzle and said connection end, when said roller means is in said transport position.
Claim 11
Dependent Claim
163 words
In combination, extracting means comprising a flexible attachment hose which communicates with a unit capable of extracting both wet and dry materials from a carpet through said flexible attachment hose; and a carpet cleaning attachment, the attachment comprising hollow, elongated, hand-held wand means connected at a connection end thereof to the attachment hose of the extracting means, and provided at the opposite end with suction nozzle means communicating with said connection end for being moved across a carpet to clean said carpet; cleaning fluid reservoir means mounted on the wand means and having a cap; means for creating a pressurized condition in said reservoir means; detecting means for said reservoir means on said cap for detecting said pressurized condition and indicating the pressure thereof; and cleaning fluid delivery means carried on the wand means for delivering cleaning fluid from the reservoir means to a region of the carpet in advance of the moving nozzle means to assist in said cleaning of said carpet.
Claim 12
Dependent Claim
163 words
In combination, extracting means comprising a flexible attachment hose which communicates with a unit capable of extracting both wet and dry materials from a carpet through said flexible attachment hose; and a carpet cleaning attachment, the attachment comprising hollow, elongated, hand-held wand means connected at a connection end thereof to the attachment hose of the extracting means, and provided at the opposite end with suction nozzle means communicating with said connection end for being moved across a carpet to clean said carpet; cleaning fluid reservoir means mounted on the wand means and having a cap; means for creating a pressurized condition in said reservoir means; detecting means for said reservoir means on said cap for detecting said pressurized condition and indicating the pressure thereof; and cleaning fluid delivery means carried on the wand means for delivering cleaning fluid from the reservoir means to a region of the carpet in advance of the moving nozzle means to assist in said cleaning of said carpet.
Claim 13
Dependent Claim
39 words
A combination as in claim 10, wherein said cleaning fluid delivery means comprises electrically operated pump means for receiving and pumping fluid from the reservoir means, and means for spraying said pumped fluid onto said region of the carpet.
Claim 14
Dependent Claim
58 words
A combination as in claim 10, wherein said means for creating a pressurized condition in said reservoir means is manually operated and creates a charge of compressed air in the reservoir means, and said cleaning fluid delivery means comprises means for spraying said fluid onto said region of the carpet under pressure of said charge of compressed air.
Claim 15
Dependent Claim
35 words
A combination as in claim 12, wherein said detecting means on said reservoir means detects said charge of compressed air and is outwardly projected from said reservoir means for indicating the pressure of said charge.
Claim 16
Dependent Claim
30 words
A combination as in claim 13, wherein said detecting means further comprises vent means for venting said charge from said reservoir means when said charge pressure reaches a predetermined value.
Claim 17
Dependent Claim
28 words
A carpet cleaning attachment as in claim 1, wherein said cap is removable from said reservoir means, thereby permitting said reservoir means to be filled with cleaning fluid.
Claim 18
Dependent Claim
26 words
A combination as in claim 10, wherein said cap is removable from said reservoir means, thereby permitting said reservoir means to be filled with cleaning fluid.
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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) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |