Patent ID: 7621241
Filing Date: 2009-11-24
Classification: F01L

Abstract:
1. A hydraulic pressure actuated locking mechanism receiving pressurized fluid from a fluid source, comprising: a housing including a housing wall defining an inner cavity for receiving a locking pin; said locking pin being slidably disposed within said inner cavity, movable between a discrete retracted and a discrete extended position; said locking pin including a cylindrical body having an axial surface and a cylindrical surface; a mechanical lock system within the locking pin for moving said locking pin between said discrete retracted position and said discrete extended position; wherein said mechanical lock system includes a first cam member constrained for axial motion within said mechanical lock system; wherein said mechanical lock system includes a second cam member constrained for axial-rotational motion within said mechanical lock system; a spring placed within said inner cavity so as to bias said locking pin to said discrete retracted position; a backplate connected to said housing wall so as to form a chamber between said locking pin and said backplate; and wherein said locking pin is axially displaced and held at said discrete extended position by sufficient fluid pressure within said chamber.