US4138760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet cleaning attachment
Assignee: Individual
•
Filing: 1977-12-30
•
Granted: 1979-02-13
•
Expires: 1997-12-30
Abstract
Abstract A carpet washing attachment for a tank-type, wet - dry vacuum cleaner comprising a fluid tank in a form of a hollow collar of a size and shape to fit around the vacuum tank and being supported on the top and depending along the sides thereof. A pump in the tank delivers a washing solution through a duct which extends along the vacuum hose and wand to terminate in a nozzle adjacent the suction head. A quick disconnect coupling at the fluid tank enables the washing attachment to be inactivated, and another at the connection between the vacuum hose and the wand enables a quick change to a shorter wand for cleaning upholstery.
Inventors
- 👤 Michael D. Cadle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:40
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4075; A47L11/34
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
136 words
A carpet washing attachment for a tank-type vacuum cleaner comprising: a vacuum tank enclosure having an upper surface and upright surfaces depending therefrom around the periphery thereof; a vacuum hose having one end thereof connected to, and opening into, said tank enclosure; and a suction attachment-receiving wand having one end thereof connected to the other end of said hose; said carpet washing attachment comprising: a fluid tank of a size and shape to be supported on said vacuum tank upper surface with portions of said fluid tank depending along said upright surfaces of said vacuum tank; a fluid pump in said fluid tank; a fluid duct connected to and extending from said pump; means for securing said fluid duct along said vacuum hose and wand; and a spray nozzle at the end of said fluid duct.
Claim 2
Dependent Claim
136 words
A carpet washing attachment for a tank-type vacuum cleaner comprising: a vacuum tank enclosure having an upper surface and upright surfaces depending therefrom around the periphery thereof; a vacuum hose having one end thereof connected to, and opening into, said tank enclosure; and a suction attachment-receiving wand having one end thereof connected to the other end of said hose; said carpet washing attachment comprising: a fluid tank of a size and shape to be supported on said vacuum tank upper surface with portions of said fluid tank depending along said upright surfaces of said vacuum tank; a fluid pump in said fluid tank; a fluid duct connected to and extending from said pump; means for securing said fluid duct along said vacuum hose and wand; and a spray nozzle at the end of said fluid duct.
Claim 3
Dependent Claim
43 words
The carpet washing attachment defined by claim 1 wherein; said fluid tank is in the form of a collar of a size to surround said vacuum tank; and including: portions on said collar for engaging said vacuum tank and support said collar thereon.
Claim 4
Dependent Claim
29 words
The carpet washing attachment defined by claim 2 wherein: said engaging portions are radially adjustable supports on said collar tank for engaging the upper surface of said vacuum tank.
Claim 5
Dependent Claim
44 words
The carpet washing attachment defined by claim 1 wherein said securing means are clips for securing said fluid duct to said vacuum hose and wand; and duct coupling means connected in said fluid duct near the connection between said vacuum hose and said wand.
Claim 6
Dependent Claim
21 words
The carpet washing attachment defined by claim 4 wherein: said spray nozzle is disposed adjacent the other end of said wand.
Claim 7
Dependent Claim
28 words
The carpet washing attachment defined by claim 1 including: a manually operated spray control valve in said fluid duct disposed adjacent said other end of said vacuum hose.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-12 | 1982-08-14 | 1983-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-12 | 1986-08-14 | 1987-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-12 | 1990-08-14 | 1991-02-13 | $7700.00 | Window Closed / Lapsed |