F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
138/91
F15B 21/12 (2006.01) B06B 1/18 (2006.01) F03C 1/007 (2006.01) F15C 1/22 (2006.01) F15C 3/16 (2006.01)
Patent
CA 1106261
Abstract of the Disclosure A hydraulic oscillator in which a piston reciprocates between first and second positions in a cylinder. A reversing pilot valve controls fluid flow to ends of the cylinder and flow through first and second pilot passages control the reversing operation of the pilot valve. The cylinder has a pilot channel or groove coupled to a pilot supply line. The piston has (1) a first logic channel for fluidly coupling the pilot channel and first pilot passage as the piston approaches the second position and (2) a second logic channel for fluidly coupling the pilot channel and second pilot passage as the piston approaches the first position thereby to alternately reverse the pilot valve and produce the reciprocation of the piston.
327442
Jarman Alonzo B.
Zeuner Kenneth W.
Control Concepts Inc.
Ridout & Maybee Llp
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