Patent US3087180A successfully refreshed from Google Patents.
US3087180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power sweeper
Assignee: Wagoner Webster Inc
•
Filing: 1961-11-29
•
Granted: 1963-04-30
•
Expires: 1981-11-29
Abstract
No abstract record available.
Inventors
- 👤 Robert G Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:57
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/02; E01H1/04; E01H1/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A POWER SURFACE SWEEPER COMPRISING: A FRAME; MOTIVE SUPPORT MEANS UNDER SAID FRAME AND INCLUDING DRIVE MEANS ASSOCIATED WITH OPPOSITE SIDES OF THE FRAME; ADJUSTABLE ROTATABLE SWEEPER BRUSH MEANS SUSPENDED UNDER SAID FRAME AND ADAPTED TO CONTACT THE SURFACE TO BE TRANSVERSED; PRIME MOVER MOTOR MEANS OPERABLY CONNECTED TO SAID DRIVE MEANS AND SAID SWEEPER BRUSH MEANS; SEPARATE CONTROL MEANS ASSOCIATED WITH SAID DRIVE MEANS ON BOTH SIDES CAPABLE OF INDEPENDENTLY RELEASING EITHER OF SAID DRIVE MEANS FROM ITS DRIVING ACTION, THEREBY FACILITATING TURNING OF SAID VEHICLE, AND CAPABLE OF RELEASING BOTH OF SAID DRIVE MEANS FROM DRIVING ACTION AND SAID SWEEPER BRUSH MEANS FROM SWEEPING ACTION ON SAID SURFACE THEREBY ALLOWING THE SWEEPER TO BE READILY STOPPED, OR MOVED MANUALLY, WITH MINIMUM FRICTIONAL RESISTANCE EVEN WHILE THE PRIME MOVER OPERATES.
Claim 2
Dependent Claim
131 words
A POWER SURFACE SWEEPER COMPRISING: A FRAME; MOTIVE SUPPORT MEANS UNDER SAID FRAME AND INCLUDING DRIVE MEANS ASSOCIATED WITH OPPOSITE SIDES OF THE FRAME; ADJUSTABLE ROTATABLE SWEEPER BRUSH MEANS SUSPENDED UNDER SAID FRAME AND ADAPTED TO CONTACT THE SURFACE TO BE TRANSVERSED; PRIME MOVER MOTOR MEANS OPERABLY CONNECTED TO SAID DRIVE MEANS AND SAID SWEEPER BRUSH MEANS; SEPARATE CONTROL MEANS ASSOCIATED WITH SAID DRIVE MEANS ON BOTH SIDES CAPABLE OF INDEPENDENTLY RELEASING EITHER OF SAID DRIVE MEANS FROM ITS DRIVING ACTION, THEREBY FACILITATING TURNING OF SAID VEHICLE, AND CAPABLE OF RELEASING BOTH OF SAID DRIVE MEANS FROM DRIVING ACTION AND SAID SWEEPER BRUSH MEANS FROM SWEEPING ACTION ON SAID SURFACE THEREBY ALLOWING THE SWEEPER TO BE READILY STOPPED, OR MOVED MANUALLY, WITH MINIMUM FRICTIONAL RESISTANCE EVEN WHILE THE PRIME MOVER OPERATES.
References Cited (Backward Citations)
US2033030A
Cited
US998517A
Cited
FR491330A
Cited
US1779583A
Cited
US1871639A
Cited
US2041654A
Cited
US2194297A
Cited
US2263722A
Cited
US2275356A
Cited
US2268059A
Cited
GB551996A
Cited
US2464980A
Cited
US2689367A
Cited
US2749996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |