Release apparatus for a holddown device

Details Release apparatus for a holddown device Release apparatus for a holddown device

1997-12-01

2000-06-13

Eley, Timothy V.

Implements or apparatus for applying pushing or pulling force

Pipe or rod jack

Tie rod tensioner

29452, E21B 1900

Patent

active

060739142

ABSTRACT:
A release element for a holddown device, on a solar generator, for example, with a retaining bolt which is under pretension in the direction of its lengthwise axis, releases the retaining bolt from its pretensioned position. Pretensioning force is exerted on the retaining bolt through thread located at the end of retaining bolt into a corresponding internal thread in the release device. Internal thread is located half in a housing of release device and half in an opener. Opener is inserted pivotably in a cutout of housing and held in place by a wire coil wound around housing and opener. To release retaining bolt, the wire coil is released by fuse elements and expands to a larger diameter, releasing the retaining bolt.

REFERENCES:
patent: 1021110 (1912-03-01), Niewohner
patent: 3597919 (1971-08-01), Lilly
patent: 5282709 (1994-02-01), Chaput et al.

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