Patent US3261590A successfully refreshed from Google Patents.
US3261590A
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Safety lowering device
Assignee: Safety Line Corp
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Filing: 1965-03-03
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Granted: 1966-07-19
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Expires: 1985-03-03
Abstract
No abstract record available.
Inventors
- 👤 Edgar C Bech
- 👤 Gerald J Gardelle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:11
CPC Classifications
B; B66; B66B; B66B9/00; B66B9/04; B66F; B66F3/00; B66F3/24; B66F2700/00; B66F2700/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A SAFETY LOWERING DEVICE HAVING IN COMBINATION: A REEL ADAPTED TO BE INSTALLED IN AN ELEVATED POSITION; A CABLE HAVING ONE END THEREOF AFFIXED TO SAID REEL AND ADAPTED TO BE WOUND UP THEREON, SAID CABLE BEING ADAPTED TO BE UNWOUND FROM SAID REEL BY THE WEIGHT OF A BODY REMOVABLY AFFIXED TO THE FREE END THEREOF; AND HYDRAULIC MEANS ADAPTED TO CONTROL OPERATION OF SAID REEL, WHEREBY THE SPEED OF DESCENT OF SAID BODY AFFIXED TO SAID CABLE IS MAINTAINED CONSTANT AND WHEREBY SAID CABLE IS AUTOMATICALLY REWOUND ON SAID REEL WHEN SAID BODY IS RELEASED FROM SAID CABLE.
Claim 2
Dependent Claim
100 words
A SAFETY LOWERING DEVICE HAVING IN COMBINATION: A REEL ADAPTED TO BE INSTALLED IN AN ELEVATED POSITION; A CABLE HAVING ONE END THEREOF AFFIXED TO SAID REEL AND ADAPTED TO BE WOUND UP THEREON, SAID CABLE BEING ADAPTED TO BE UNWOUND FROM SAID REEL BY THE WEIGHT OF A BODY REMOVABLY AFFIXED TO THE FREE END THEREOF; AND HYDRAULIC MEANS ADAPTED TO CONTROL OPERATION OF SAID REEL, WHEREBY THE SPEED OF DESCENT OF SAID BODY AFFIXED TO SAID CABLE IS MAINTAINED CONSTANT AND WHEREBY SAID CABLE IS AUTOMATICALLY REWOUND ON SAID REEL WHEN SAID BODY IS RELEASED FROM SAID CABLE.
References Cited (Backward Citations)
US2646964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |