Patent US4022382A successfully refreshed from Google Patents.
US4022382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface cleaning device
Assignee: Individual
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Filing: 1976-04-21
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Granted: 1977-05-10
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Expires: 1996-04-21
Abstract
Abstract A high pressure wall of water is directed at a surface to be cleaned from a plastic-type discharger tube having nozzles mounted therein. The discharge tube is joined at right angles to a plastic-type inlet tube. The inlet tube connects to a garden hose through a convenient valve and coupling arrangement. The discharge tube has caster-type wheels mounted thereto approximately midway between the union of the discharge tube and inlet tube and the respective ends of the discharge tube.
Inventors
- 👤 Arnold Bernard Engdahl, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:55
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/18; B05B1/00; B05B1/14; B05B1/20; B05B1/202; B05B15/00; B05B15/60; B05B15/62; B08; B08B; B08B3/00; B08B3/02; B08B3/024
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
236 words
A surface cleaning device for cleaning substantially flat surfaces, comprising: a discharge tube, said discharge tube including: a first tube segment having at least one discharge nozzle therein, a cap closing a first end of said tube segment, the second end of said tube segment being fastened to a first T fitting; a second tube segment having at least one discharge nozzle therein, a first end of said second tube segment being fastened to said first T fitting in line with said first tube segment, the second end of said tube segment being fastened to a second T fitting; a third tube segment having at least one discharge nozzle therein, a first end of said first tube segment being fastened to said second T fitting, in line with said second tube segment, the second end of said third tube segment being fastened to a third T fitting; a fourth tube segment having at least one discharge nozzle therein, a first end of said fourth tube segment being fastened to said third T fitting, in line with said third tube segment, a cap closing the second end of said fourth tube segment; an inlet tube connected to said second T fitting, said inlet tube having a coupling means attached thereto for connection to a water hose; and a pair of caster-type wheels, one connected to said first T fitting, the other connected to said third T fitting.
Claim 2
Dependent Claim
236 words
A surface cleaning device for cleaning substantially flat surfaces, comprising: a discharge tube, said discharge tube including: a first tube segment having at least one discharge nozzle therein, a cap closing a first end of said tube segment, the second end of said tube segment being fastened to a first T fitting; a second tube segment having at least one discharge nozzle therein, a first end of said second tube segment being fastened to said first T fitting in line with said first tube segment, the second end of said tube segment being fastened to a second T fitting; a third tube segment having at least one discharge nozzle therein, a first end of said first tube segment being fastened to said second T fitting, in line with said second tube segment, the second end of said third tube segment being fastened to a third T fitting; a fourth tube segment having at least one discharge nozzle therein, a first end of said fourth tube segment being fastened to said third T fitting, in line with said third tube segment, a cap closing the second end of said fourth tube segment; an inlet tube connected to said second T fitting, said inlet tube having a coupling means attached thereto for connection to a water hose; and a pair of caster-type wheels, one connected to said first T fitting, the other connected to said third T fitting.
Claim 3
Dependent Claim
20 words
The surface cleaning device of claim 1 wherein said first, second, third and fourth tube segments are equal in length.
Claim 4
Dependent Claim
55 words
The surface cleaning device of claim 2, further comprising: plug means for the upstanding leg of said first and third T fittings, each of said plug means sized to seal the opening in the leg of its respective T fitting and having an aperture therein to receive the stud sleeve of a caster type wheel.
Claim 5
Dependent Claim
32 words
The surface cleaning device of claim 3, wherein said first and third T fittings have their leg portions oriented at an acute angle with the leg portion of said second T fitting.
Claim 6
Dependent Claim
63 words
The surface cleaning device of claim 4 wherein said first, second, third and fourth tube segments are fastened to said first and third T fittings so as to orient the nozzles in the respective tube segments at an acute angle with the leg portion of said first and third T fittings, the leg portion of said first and third T fittings being parallel.
Claim 7
Dependent Claim
55 words
The surface cleaning device of claim 1, further comprising: plug means for the upstanding leg of said first and third T fittings, each of said plug means sized to seal the opening in the leg of its respective T fitting and having an aperture therein to receive the stud sleeve of a caster type wheel.
Claim 8
Dependent Claim
32 words
The surface cleaning device of claim 1, wherein said first and third T fittings have their leg portions oriented at an acute angle with the leg portion of said second T fitting.
Claim 9
Dependent Claim
63 words
The surface cleaning device of claim 7, wherein said first, second, third and fourth tube segments are fastened to said first and third T fittings so as to orient the nozzles in the respective tube segments at an acute angle with the leg portion of said first and third T fittings, the leg portions of said first and third T fittings being parallel.
Claim 10
Dependent Claim
20 words
The surface cleaning device of claim 7, wherein the leg portions of said first and third T fittings are parallel.
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) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |