Underwater timer and release device

Details Underwater timer and release device Underwater timer and release device

1974-09-09

1976-01-27

Marbert, James B.

Spring devices

Fluid

Time delay

200 34, F16F 500

Patent

active

039348652

ABSTRACT:
An underwater timer and release device comprising a cylindrical housing sealed at its opposite ends and adapted to receive a slidable spring-loaded piston therein. The piston includes a metering orifice to provide a regulated flow of fluid from a secondary chamber to a primary chamber, thereby actuating a releasing means when the piston shaft is disengaged from a locking means and is allowed to operate. Releasably secured to the housing is a float marker, which rises to the surface of the water, having an interconnecting cord attached to the submerged housing. A one-way check valve is also disposed within the piston, whereby the fluid can be transferred back into the secondary chamber for reloading the release means.

REFERENCES:
patent: 3121239 (1964-02-01), Cannon, Jr.
patent: 3332390 (1967-07-01), Ashline
patent: 3484090 (1969-12-01), Mahoney

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