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US3074530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Board inverter
Assignee: JB Ehrsam and Sons Manufacturing Co
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Filing: 1959-12-23
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Granted: 1963-01-22
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Expires: 1979-12-23
Abstract
No abstract record available.
Inventors
- 👤 John R Rosenleaf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:19
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/22; B65G47/24; B65G47/248; B65G47/252
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A BOARD-INVERTER MECHANISM COMPRISING LATERALLYINTERRUPTED MEANS FOR SUPPORTING AND MOVING A BOARD SUBSTANTIALLY HORIZONTALLY, FULCRUM MEANS DISPOSED ABOVE SAID BOARD-MOVING MEANS AND TRANSVERSE TO THE DIRECTION OF MOVEMENT OF SUCH A BOARD, SAID BOARD-MOVING MEANS CONTINUING SUBSTANTIALLY HORIZONTALLY FOR A SIGNIFICANT DISTANCE BEYOND THE LOCATION OF SAID FULCRUM MEANS, AND AN ARM DEPENDENT SUBSTANTIALLY VERTICALLY FROM SAID FULCRUM MEANS AND MOUNTED FOR OSCILLATORY SWINGING MOVEMENT ABOUT THE AXIS OF SAID FULCRUM MEANS, SAID ARM BEING PROVIDED WITH HOOK MEANS DISPOSED BELOW THE ADVANCING PATH OF THE LEADING EDGE OF A BOARD CARRIED BY SAID BOARD-MOVING MEANS AND BELOW THE PLANE OF SAID BOARDMOVING MEANS.
Claim 2
Dependent Claim
104 words
A BOARD-INVERTER MECHANISM COMPRISING LATERALLYINTERRUPTED MEANS FOR SUPPORTING AND MOVING A BOARD SUBSTANTIALLY HORIZONTALLY, FULCRUM MEANS DISPOSED ABOVE SAID BOARD-MOVING MEANS AND TRANSVERSE TO THE DIRECTION OF MOVEMENT OF SUCH A BOARD, SAID BOARD-MOVING MEANS CONTINUING SUBSTANTIALLY HORIZONTALLY FOR A SIGNIFICANT DISTANCE BEYOND THE LOCATION OF SAID FULCRUM MEANS, AND AN ARM DEPENDENT SUBSTANTIALLY VERTICALLY FROM SAID FULCRUM MEANS AND MOUNTED FOR OSCILLATORY SWINGING MOVEMENT ABOUT THE AXIS OF SAID FULCRUM MEANS, SAID ARM BEING PROVIDED WITH HOOK MEANS DISPOSED BELOW THE ADVANCING PATH OF THE LEADING EDGE OF A BOARD CARRIED BY SAID BOARD-MOVING MEANS AND BELOW THE PLANE OF SAID BOARDMOVING MEANS.
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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |