US3873145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable grapple
Assignee: United States Department of the Navy
•
Filing: 1974-02-21
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Granted: 1975-03-25
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Expires: 1994-02-21
Abstract
Abstract A grapple for hoisting an undersea cable having first and second cable engaging jaws which are normally biased in a closed position. The first and second jaws are pivotally connected to a guide plate at a common pivot point and a restraining wire is provided to keep the jaws in an opened position. Upon locating a cable undersea, the restraining wire is severed and the biased jaws are closed around the cable. A cam surface is provided on the guide plate and a shaft which is attached by linkage to the first and second jaws moves onto the cam surface to lock the jaws in a closed position around the cable to be recovered.
Inventors
- 👤 David E Adkins
- 👤 Donald J Hackman
- 👤 William S Pope
- 👤 Jerry D Totten
- 👤 Larry L Wischhoefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:40
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/42
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
160 words
A cable grapple comprising, a guide plate having a cam surface thereon and a slot therein, first and second cable engaging jaws pivotally connected to said guide plate at a common point, spring means biasing said first and second cable engaging jaws in a normally closed position, guide means slidable in said guide plate slot and engageable with said cam surface a first link connecting said first cable engaging jaw and said guide means and a second link connecting said second cable engaging jaw and said guide means whereby said guide means moves in said slot during closing of said jaws and onto said cam surface to lock said jaws iN a closed position, a wire connected to said first link and said second cable engaging jaw for holding said first and second cable engaging jaws in an opened position, and means for severing said wire whereby said first and second cable engaging jaws are closed by said spring means.
Claim 2
Dependent Claim
160 words
A cable grapple comprising, a guide plate having a cam surface thereon and a slot therein, first and second cable engaging jaws pivotally connected to said guide plate at a common point, spring means biasing said first and second cable engaging jaws in a normally closed position, guide means slidable in said guide plate slot and engageable with said cam surface a first link connecting said first cable engaging jaw and said guide means and a second link connecting said second cable engaging jaw and said guide means whereby said guide means moves in said slot during closing of said jaws and onto said cam surface to lock said jaws iN a closed position, a wire connected to said first link and said second cable engaging jaw for holding said first and second cable engaging jaws in an opened position, and means for severing said wire whereby said first and second cable engaging jaws are closed by said spring means.
Claim 3
Dependent Claim
21 words
A cable grapple as set forth in claim 1 wherein said means for severing said wire is an explosive cable cutter.
References Cited (Backward Citations)
US1266233A
Cited
US2476734A
Cited
US2621069A
Cited
US2745695A
Cited
US3266353A
Cited
US3572808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |