F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
138/91, 121/98
F15B 15/14 (2006.01)
Patent
CA 1110139
1. DOUBLE ACTING FLUID OPERATED PISTON CYLINDER ASSEMBLY ABSTRACT OF THE DISCLOSURE An elongated cylinder housing has a piston therein molded from a resinous plastic material. The piston has an angularly extending slot receiving a metal clutch roller operated by a clutch control bar slidable relative to the piston. The clutch control bar is secured to a secondary piston member, and springs are disposed between the piston and the secondary piston member for normally causing the control bar to pull the clutch roller into an engaged posi- tion. The clutch roller is disposed in such engaged posi- tion to prevent travel of the piston in one direction except when actuating fluid in the cylinder operates on the second- ary piston member against the force of the springs to cause the clutch roller to move the clutch control bar into a re- leased position. The bottom of the slot that receives the clutch roller is covered by metal plates to permit free roll- ing engagement of the clutch roller thereon and at the same time to prevent indentation of the clutch roller into the plastic. The roller support plates are retained in the slot by interfitting projections and notches.
320839
Frayne Robert D.
Hewitt Delbert C.
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