Patent ID: 7435148

Claim:
A hydrostatic release for securing a first object to a second object and when subjected to a specific water pressure will release the first object from the second object comprising: a hydrostatic release enclosure including a receptacle and a first passage; a first rigid shaft having a portion mounted in said enclosure passage, said first shaft connectable to a first object; a second rigid shaft having a portion mounted in said enclosure passage, said first shaft and said second shaft mounted in said enclosure passage coaxially end-to-end; means for securing said first shaft to said second shaft in said enclosure passage; forced generating means for creating a force based on a pre-determined pressure of water engulfing said force generating means mounted in said hydrostatic enclosure receptacle and connected to said first and second shaft securing means; said force generating means includes a flexible diaphragm mounted inside said hydrostatic enclosure receptacle; a spring attached to one side of said diaphragm to resist motion of said diaphragm in the direction of the spring; said hydrostatic enclosure receptacle includes an inlet water flow passage in fluid communication with said diaphragm permitting ambient water to reach one side of said diaphragm on the opposite side from said spring whereby water pressure greater than the spring force will cause the diaphragm to move against the spring; a slide having a first shaft end and second shaft end securing flange for securing said first shaft end to said second shaft end; a slide spring for moving said slide against spring tension; and a slide locking pin connected to said diaphragm and said slide for holding said slide in a first position in the absence of water pressure against the diaphragm and for moving said pin when water pressure moves said diaphragm releasing said first and second shaft ends from each other.