Underwater release mechanism

Handling: hand and hoist-line implements – Article carrier gripped and carried by hand – Convertible to – or useable as – different device or different...

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Details

24230AP, 24241R, 24241PS, 294 83AE, B63B 2152

Patent

active

041364155

ABSTRACT:
An underwater release mechanism for a shackle including a shaft releasably journaled in a casing and held in position by a frangible link to be spring biased to release a shackle hook upon remote actuation causing the link to fracture whereby the shackle is released and the release mechanism floats to the surface. The frangible link externally connected to the casing members to facilitate replacement of the frangible link and reuse of the release mechanism. A rope canister can be attached to the casing with one end of the rope tied to the shackle whereby after release the canister end of the rope will be tied to the float to mark the spot of the shackle. Also a force multiplier can be added to the release mechanism via a second retaining bracket and a second shackle hook to increase the casing load by a ratio of at least 5:1 as for example a release mechanism capable of a 400 pound load would have a 2000 pound load capacity. A safety shaft, manually releasable, can be added to the retaining bracket to prevent accidental release of the mechanism prior to its being installed under water.

REFERENCES:
patent: 3052091 (1962-09-01), D'Ooge
patent: 3504407 (1970-04-01), Dawson
patent: 3540676 (1970-11-01), Madey et al.
patent: 3990344 (1976-11-01), Hansen

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