Patent US3122250A successfully refreshed from Google Patents.
US3122250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container handling apparatus
Assignee: Dempster Systems Inc
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Filing: 1962-05-07
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Granted: 1964-02-25
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Expires: 1982-05-07
Abstract
No abstract record available.
Inventors
- 👤 Henry C French
- 👤 Neil F Wender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:29
CPC Classifications
B; B65; B65F; B65F3/00; B65F3/02; B65F3/04; B60; B60P; B60P1/00; B60P1/48; B60P1/50; B65F2003/0263; B65F2003/0279
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN CONTAINER HANDLING EQUIPMENT OF THE CHARACTER DESCRIBED, THE COMBINATION OF A PAIR OF LIFTING ARMS PIVOTALLY MOUNTED AT ONE END TO A VEHICLE FOR RAISING AND LOWERING MOVEMENT WITH RESPECT TO THE VEHICLE, A TORQUE TUBE EXTENDING BETWEEN THE OTHER ENDS OF THE LIFTING ARMS AND JOURNALED TO THE LIFTING ARMS FOR ROTATIONAL MOVEMENT WITH RESPECT TO THE LIFTING ARMS, SLEEVE MEMBERS MOVABLE ALONG THE TORQUE TUBE, MEANS BETWEEN THE TORQUE TUBE AND THE SLEEVE MEMBERS FOR GUIDING THE SLEEVE MEMBERS ALONG THE TORQUE TUBE AND FOR PREVENTING ROTATIONAL MOVEMENT OF THE SLEEVE MEMBERS WITH RESPECT TO THE TORQUE TUBE, A FORK ARM ATTACHED TO EACH SLEEVE AND EXTENDING AWAY FROM THE TORQUE TUBE, AND POWER MEANS ON THE TORQUE TUBE FOR MOVING THE SLEEVE MEMBERS ALONG THE TORQUE TUBE, SAID POWER MEANS INCLUDING A FLUID ACTUATED CYLINDER DEVICE PIVOTALLY MOUNTED TO THE TORQUE TUBE.
Claim 2
Dependent Claim
146 words
IN CONTAINER HANDLING EQUIPMENT OF THE CHARACTER DESCRIBED, THE COMBINATION OF A PAIR OF LIFTING ARMS PIVOTALLY MOUNTED AT ONE END TO A VEHICLE FOR RAISING AND LOWERING MOVEMENT WITH RESPECT TO THE VEHICLE, A TORQUE TUBE EXTENDING BETWEEN THE OTHER ENDS OF THE LIFTING ARMS AND JOURNALED TO THE LIFTING ARMS FOR ROTATIONAL MOVEMENT WITH RESPECT TO THE LIFTING ARMS, SLEEVE MEMBERS MOVABLE ALONG THE TORQUE TUBE, MEANS BETWEEN THE TORQUE TUBE AND THE SLEEVE MEMBERS FOR GUIDING THE SLEEVE MEMBERS ALONG THE TORQUE TUBE AND FOR PREVENTING ROTATIONAL MOVEMENT OF THE SLEEVE MEMBERS WITH RESPECT TO THE TORQUE TUBE, A FORK ARM ATTACHED TO EACH SLEEVE AND EXTENDING AWAY FROM THE TORQUE TUBE, AND POWER MEANS ON THE TORQUE TUBE FOR MOVING THE SLEEVE MEMBERS ALONG THE TORQUE TUBE, SAID POWER MEANS INCLUDING A FLUID ACTUATED CYLINDER DEVICE PIVOTALLY MOUNTED TO THE TORQUE TUBE.
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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) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |