Patent US3649982A successfully refreshed from Google Patents.
US3649982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road sweeper conveyor system
Assignee: Wayne Manufacturing Co
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Filing: 1969-12-04
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Granted: 1972-03-21
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Expires: 1989-12-04
Abstract
Abstract Employing the combination of a road sweeping rotary pickup broom, a shrouded conveyor receiving the broom sweepings and a debris receptacle, the invention departs from the conventional practices of conveying the sweepings for delivery into a receptacle forwardly of the conveyor, by carrying the sweepings over the top of the conveyor into a receptacle more conveniently located for dumping at the rear of the vehicle and conveyor system.
Inventors
- 👤 Donald G Mortensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:28
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/02; E01H1/04; E01H1/042
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
168 words
In a vehicle road sweeper including a rotary pickup broom, a conveyor system comprising a power driven endless conveyor positioned forwardly of the broom to receive sweepings projected therefrom, the conveyor being elongated and extending upwardly and forwardly away from the region over the broom, a shroud extending about the lower forward portion of the conveyor and then inclined upwardly and forwardly beneath and parallel to the conveyor to a discharge location overlying the top of the conveyor at which location the shroud has rearwardly directed curvature, and a debris dumping receptacle carried by the vehicle at the rear of the conveyor and shroud and above the level of the broom, the receptacle opening forwardly toward said location, the conveyor including an endless flexible carrier for spaced shroud squeegees operating to elevate sweepings along the bottom interior upwardly and forwardly sloping surface of the shroud for accelerated rearward overthrow at the top of conveyor, with rearward velocity sufficient to carry the sweepings to the rear of the receptacle.
Claim 2
Dependent Claim
168 words
In a vehicle road sweeper including a rotary pickup broom, a conveyor system comprising a power driven endless conveyor positioned forwardly of the broom to receive sweepings projected therefrom, the conveyor being elongated and extending upwardly and forwardly away from the region over the broom, a shroud extending about the lower forward portion of the conveyor and then inclined upwardly and forwardly beneath and parallel to the conveyor to a discharge location overlying the top of the conveyor at which location the shroud has rearwardly directed curvature, and a debris dumping receptacle carried by the vehicle at the rear of the conveyor and shroud and above the level of the broom, the receptacle opening forwardly toward said location, the conveyor including an endless flexible carrier for spaced shroud squeegees operating to elevate sweepings along the bottom interior upwardly and forwardly sloping surface of the shroud for accelerated rearward overthrow at the top of conveyor, with rearward velocity sufficient to carry the sweepings to the rear of the receptacle.
Claim 3
Dependent Claim
32 words
A conveyor system according to claim 1 in which there is a pivoted connection through which the receptacle is supported for rearward pivoting about a generally horizontal axis defined by said connection.
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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |