Hydraulic cylinder

Details Hydraulic cylinder Hydraulic cylinder

2007-05-22

2007-05-22

Lazo, Thomas E. (Department: 3745)

Power plants

Pressure fluid source and motor

Pulsator

C060S588000, C092S1650PR

Reexamination Certificate

active

11103869

ABSTRACT:
A hydraulic cylinder includes a housing having a fluid connection for connecting to a hydraulic system and an after-running connection for connecting to a fluid after-running vessel, and a piston which is axially displaceable in the housing to define a variable pressure space having a gas collecting portion, the piston being fixed against rotation in the housing and having at least one after-running groove which is oriented substantially toward the gas collecting portion. A primary seal arranged in the housing and receiving the piston therethrough is bridged by the after-running groove when the piston is in an extended end position, whereby the gas collecting portion of the pressure space communicates with the after-running connection when the piston is in the extended end position.

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