Patent US3701177A successfully refreshed from Google Patents.
US3701177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Front wheel driven floor scrubber
Assignee: STAR IND Inc
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Filing: 1971-04-22
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Granted: 1972-10-31
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Expires: 1991-04-22
Abstract
Abstract A battery-powered three-wheeled floor scrubber vehicle having a single steerable front drive wheel and a frameless body structure consisting of a series of interconnected tank members and a pair of hydraulically controlled floor scrubbing brushes and squeegee arrangement mounted forwardly of the front steerable drive wheel.
Inventors
- 👤 Leonard Meyer
- 👤 Walter G Ashton
- 👤 James E Siegele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:54
CPC Classifications
B; B60; B60K; B60K7/00; B60K7/0015; A; A47; A47L; A47L11/00; A47L11/02; A47L11/10; A47L11/40; A47L11/4036; A47L11/4044; A47L11/4052; A47L11/4055; A47L11/4061; A47L11/4072; B60K1/00; B60K1/04; B60K17/00; B60K17/04; B60K17/10; B60K2007/0046; B60K2007/0092; B60Y; B60Y2200/00; B60Y2200/10; B60Y2200/15
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
128 words
A battery-powered hydraulically driven three-wheeled floorscrubbing personnel-carrying vehicle, wherein the improvement comprises a. a steerable hydraulically driven front wheel and a pair of freely rotatable rear wheels journalled on a rear axle, b. a cleaning brush and squeegee-supporting structure pivotally connected onto said rear axle, c. a pair of rotatable cleaning brushes mounted on said supporting structure forwardly of said front wheel, d. a corner squeegee member mounted on said supporting structure and movable independently thereof into and out of floor engagement, e. means movably connecting said corner squeegee to said supporting structure for independent movement relative thereto, and f. means for pivoting said supporting structure about said rear axle for moving said cleaning brushes and corner squeegee through a substantially vertical plane forwardly of said front wheel.
Claim 2
Dependent Claim
128 words
A battery-powered hydraulically driven three-wheeled floorscrubbing personnel-carrying vehicle, wherein the improvement comprises a. a steerable hydraulically driven front wheel and a pair of freely rotatable rear wheels journalled on a rear axle, b. a cleaning brush and squeegee-supporting structure pivotally connected onto said rear axle, c. a pair of rotatable cleaning brushes mounted on said supporting structure forwardly of said front wheel, d. a corner squeegee member mounted on said supporting structure and movable independently thereof into and out of floor engagement, e. means movably connecting said corner squeegee to said supporting structure for independent movement relative thereto, and f. means for pivoting said supporting structure about said rear axle for moving said cleaning brushes and corner squeegee through a substantially vertical plane forwardly of said front wheel.
Claim 3
Dependent Claim
46 words
A battery-powered hydraulically driven three-wheeled floor-scrubbing personnel-carrying vehicle as defined by claim 1, including hydraulically driven motors for said steerable front wheel and each of said cleaning brushes and hydraulic cylinders and movable pistons for said corner squeegee moving means and said supporting structure pivoting means.
Claim 4
Dependent Claim
59 words
A battery-powered hydraulically driven three-wheeled floor-scrubbing personnel-carrying vehicle as defined by claim 2, wherein said steerable front wheel includes a mounting bracket for said wheel and its hydraulically driven motor and associated hydraulic conduits, with said bracket providing means for maintaining the hydraulic conduits of said motor separated and unobstructed as said wheel is turned to steer the vehicle.
Claim 5
Dependent Claim
54 words
A battery-powered hydraulically driven three-wheeled floor-scrubbing personnel-carrying vehicle as defined by claim 1, wherein said means movably connecting said corner squeegee to said supporting structure comprises a movable parallelogram arrangement between said squeegee and said supporting structure for independently moving said corner squeegee member relative to said supporting structure through a substantially vertical plane.
Claim 6
Dependent Claim
50 words
A battery-powered hydraulically driven three-wheeled floor-scrubbing personnel-carrying vehicle as defined by claim 1, wherein the vehicle is frameless and consists Of a series of structural elements including a cleaning solution tank carrying an instrument panel and a rear wheel compartment and supporting a detachable battery compartment and liquid recovery tank.
Claim 7
Dependent Claim
54 words
A battery-powered hydraulically driven three-wheeled floor-scrubbing personnel-carrying vehicle as defined by claim 5, wherein said means movably connecting said corner squeegee to said supporting structure comprises a movable parallelogram arrangement between said squeegee and said supporting structure for independently moving said corner squeegee member relative to said supporting structure through a substantially vertical plane.
References Cited (Backward Citations)
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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) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |