Shuttle valve assembly

Abstract

A shuttle valve assembly, comprising a valve housing containing first, second and third ports, and a cavity in the housing, a poppet shiftable in the cavity between a first position and a second position, the poppet in its first position directing flow between the first port and the second port, communication between the second port and third port then being blocked, the poppet in its second position directing flow between the third port and the second port, communication between the second port and first port then being blocked, and a friction responsive holder acting to hold the poppet in said first position until fluid pressure shifts the poppet to said second position, and to hold the poppet in said second position until fluid pressure shifts the poppet to said first position.

Dependencies are inferred from the claim text.