Patent US4074387A successfully refreshed from Google Patents.
US4074387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner attachment
Assignee: CENTAUR FLOOR MACHINES Ltd
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Filing: 1976-12-27
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Granted: 1978-02-21
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Expires: 1996-12-27
Abstract
Abstract A vacuum cleaner attachment, especially suited for vacuum cleaning of upholstery, has an applicator head having a first opening for vacuum and a second opening for applying cleaning fluid. Two separate conduits are in fluid communication with the respective openings. At their connections to the applicator head, the conduits are enclosed in a resilient rubber sleeve. The sleeve has two separate longitudinal apertures, one for each conduit, and maintains the two conduits in separated, side-by-side relationship. A valve means is provided in the second conduit to control the supply of cleaning fluid, the valve means being enclosed by the rubber sleeve and manually operable by the operators squeezing the rubber sleeve when application of cleaning fluid is required.
Inventors
- 👤 Paul Arato
- 👤 Antony Lelkes
- 👤 Larry Ronald Reid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:28
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4044; A47L11/34; A47L11/408; A47L11/4088
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
158 words
A vacuum cleaner attachment comprising: a first conduit having an outlet end adapted to be connected to a vacuum source, and an inlet end; a second conduit having an inlet end adapted to be connected to a source of cleaning fluid, and an outlet end; a valve of the outlet end of said second conduit, the valve having a manually operable operating member adapted to open and close the said valve; an applicator head in fluid communication with the inlet end of said first conduit and the outlet end of said second conduit; a resilient sleeve having a first longitudinal aperture receiving the first conduit, and a second longitudinal aperture receiving the second conduit, said longitudinal apertures being disposed in generally side-by-side relationship; the operating member of said valve being disposed within said sleeve, and being manually operable in response to manual pressure exerted on a portion of the exterior of said sleeve adjacent the underlying operating member.
Claim 2
Dependent Claim
158 words
A vacuum cleaner attachment comprising: a first conduit having an outlet end adapted to be connected to a vacuum source, and an inlet end; a second conduit having an inlet end adapted to be connected to a source of cleaning fluid, and an outlet end; a valve of the outlet end of said second conduit, the valve having a manually operable operating member adapted to open and close the said valve; an applicator head in fluid communication with the inlet end of said first conduit and the outlet end of said second conduit; a resilient sleeve having a first longitudinal aperture receiving the first conduit, and a second longitudinal aperture receiving the second conduit, said longitudinal apertures being disposed in generally side-by-side relationship; the operating member of said valve being disposed within said sleeve, and being manually operable in response to manual pressure exerted on a portion of the exterior of said sleeve adjacent the underlying operating member.
Claim 3
Dependent Claim
22 words
The vacuum cleaner attachment of claim 1 wherein said resilient sleeve is of rubber and provides heat insulation of said second conduit.
Claim 4
Dependent Claim
56 words
The vacuum cleaner attachment of claim 2 wherein said first conduit is comprised of a flexible hose and a rigid tube integral with said applicator head, the end of the rigid tube remote from the applicator head and the end of the flexible hose both being received in said first longitudinal aperture of the resilient sleeve.
Claim 5
Dependent Claim
60 words
The vacuum cleaner attachment of claim 3 wherein said applicator head has a first inlet opening in communication with said first conduit, and a second outlet opening in communication with said second conduit via said valve, both the first inlet opening and the second outlet opening being presented in a direction generally transverse to the longitudinal axis of the sleeve.
Claim 6
Dependent Claim
85 words
The vacuum cleaner attachment of claim 4 wherein the first inlet opening and the second outlet opening are disposed in generally side-by-side relationship in said applicator head, and are displaced laterally with respect to the longitudinal axis of said first conduit, the second conduit being disposed in generally parallel, side-by-side relationship to said first conduit, and being laterally displaced from the longitudinal axis of said first conduit in the same direction as the displacement of said first inlet opening and said second outlet opening therefrom.
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) | 1981-02-20 | 1981-08-22 | 1982-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-20 | 1985-08-22 | 1986-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-20 | 1989-08-22 | 1990-02-21 | $7700.00 | Window Closed / Lapsed |