F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
138/40.13
F15B 7/00 (2006.01) B25D 9/12 (2006.01) B25D 9/22 (2006.01) B25D 17/06 (2006.01) E21B 4/14 (2006.01) F01L 33/02 (2006.01) F03C 1/013 (2006.01)
Patent
CA 1186592
A HYDRAULIC RECIPROCATING DEVICE ABSTRACT OF THE DISCLOSURE A hydraulic reciprocating device having a housing in which there is a piston having a first surface and a second surface. A rotating valve is provided for inter- mittently communicating the first surface of the piston with a hydraulic supply and with a hydraulic return. The second surface of the piston is continuously communicated with pressurized fluid wherein the piston moves in the first direction when the hydraulic fluid communicates with the first surface of the piston and wherein the piston moves in a second direction when the hydraulic fluid does not communicate with the first surface of the piston.
411103
Ingersoll-Rand Company
Swabey Ogilvy Renault
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