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US3339753A
Expired / Lapsed
US
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Material handling apparatus
Assignee: Kerma Corp
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Filing: 1965-09-30
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Granted: 1967-09-05
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Expires: 1985-09-30
Abstract
No abstract record available.
Inventors
- 👤 Klaus W Forster
- 👤 Schaper Donald William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:11
CPC Classifications
B; B66; B66C; B66C7/00; B66D; B66D1/00; B66D1/28; B66C2700/00; B66C2700/01; B66C2700/012; B66D2700/00; B66D2700/01; B66D2700/0183
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
IN A MATERIAL HANDLING SYSTEM, AN ELONGATED OVERHEAD SUPPORT MEANS, TROLLEY MEANS MOUNTED ON SAID SUPPORT FOR MOVEMENT ALONG THE UPPER SIDE THEREOF, HOISTING APPARATUS INCLUDING A HOIST CABLE DRUM CARRIED BY SAID TROLLEY MEANS, MEANS SUPPORTING SAID DRUM FOR ROTATION ABOUT AN AXIS EXTENDING SUBSTANTIALLY HORIZONTAL AND AT RIGHT ANGLES TO THE LENGTH OF SAID SUPPORT MEANS AND FOR LINEAR MOVEMENT ALONG SAID AXIS OF ROTATION AND WITH ONE END OF SAID DRUM PROJECTING TO ONE LONGITUDINAL SIDE OF SAID SUPPORT MEANS, HOIST CABLE MEANS CONNECTED TO SAID DRUM AND HAVING A PORTION DEPENDING THEREFROM CLOSELY ADJACENT TO SAID ONE SIDE OF SAID SUPPORT MEANS ADAPTED TO CARRY A LOAD AND BE WRAPPED ON AND UNWRAPPED FROM SAID DRUM IN RESPONSE TO DRUM ROTATION, DRIVE MEANS FOR ROTATING SAID DRUM, AND MEANS EFFECTING LINEAR MOVEMENT OF SAID DRUM EQUAL TO THE PITCH OF SAID CABLE ON SAID DRUM PE RREVOLUTION OF SAID DRUM WHEREBY SAID DEPENDING CABLE PORTION IS MAINTAINED AT SUBSTANTIALLY THE SAME CLOSE POSITION TO SAID ONE SIDE OF SAID SUPPORT MEANS AS SAID CABLE IS WRAPPED ON AND UNWRAPPED FROM SAID DRUM.
Claim 2
Dependent Claim
186 words
IN A MATERIAL HANDLING SYSTEM, AN ELONGATED OVERHEAD SUPPORT MEANS, TROLLEY MEANS MOUNTED ON SAID SUPPORT FOR MOVEMENT ALONG THE UPPER SIDE THEREOF, HOISTING APPARATUS INCLUDING A HOIST CABLE DRUM CARRIED BY SAID TROLLEY MEANS, MEANS SUPPORTING SAID DRUM FOR ROTATION ABOUT AN AXIS EXTENDING SUBSTANTIALLY HORIZONTAL AND AT RIGHT ANGLES TO THE LENGTH OF SAID SUPPORT MEANS AND FOR LINEAR MOVEMENT ALONG SAID AXIS OF ROTATION AND WITH ONE END OF SAID DRUM PROJECTING TO ONE LONGITUDINAL SIDE OF SAID SUPPORT MEANS, HOIST CABLE MEANS CONNECTED TO SAID DRUM AND HAVING A PORTION DEPENDING THEREFROM CLOSELY ADJACENT TO SAID ONE SIDE OF SAID SUPPORT MEANS ADAPTED TO CARRY A LOAD AND BE WRAPPED ON AND UNWRAPPED FROM SAID DRUM IN RESPONSE TO DRUM ROTATION, DRIVE MEANS FOR ROTATING SAID DRUM, AND MEANS EFFECTING LINEAR MOVEMENT OF SAID DRUM EQUAL TO THE PITCH OF SAID CABLE ON SAID DRUM PE RREVOLUTION OF SAID DRUM WHEREBY SAID DEPENDING CABLE PORTION IS MAINTAINED AT SUBSTANTIALLY THE SAME CLOSE POSITION TO SAID ONE SIDE OF SAID SUPPORT MEANS AS SAID CABLE IS WRAPPED ON AND UNWRAPPED FROM SAID DRUM.
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) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |