US3584325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road sweeper broom chamber control
Assignee: Wayne Manufacturing Co
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Filing: 1969-11-13
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Granted: 1971-06-15
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Expires: 1989-11-13
Abstract
Abstract THE INVENTION REPLACES THE USUAL AIR SEAL FLAP ATTACHED TO THE FORWARD WALL OF A ROAD SWEEPER PICKUP BROOM CHAMBER AND SUBJECT TO LODGED DEFLECTION AND RETENTION BETWEEN THE BROOM AND WALL, BY PROVIDING A DIFFERENT FLAP PIVOTALLY MOUNTED FOR BODILY ROTATION BETWEEN REVERSIBLE POSITIONS IN WHICH A LOWER EXTENT OF THE FLAP RIDES THE ROAD SURFACE AND AN UPPER EXTENT BEARS AGAINST THE INSIDE OF THE BROOM HOUSING IN A POSITION FROM WHICH THE FLAP HAS DEFLECTED ESCAPE DURING THE FLAP REVERSAL.
Inventors
- 👤 Gregory J Larsen
- 👤 Rodney L Woodworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:58
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/02; E01H1/04; E01H1/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |