Breathing for single acting hydraulic cylinders

Details Breathing for single acting hydraulic cylinders Breathing for single acting hydraulic cylinders

2007-03-15

2009-06-09

Novosad, Christopher J. (Department: 3641)

Earth working

Having tool overload shift controlled by a fluid pressure...

C060S260000, C092S061000, C092S142000, C092S161000, C092S16500R, C092S261000

Reexamination Certificate

active

07543656

ABSTRACT:
A single acting hydraulic cylinder apparatus includes a mechanism operated by a single acting hydraulic cylinder, the mechanism including a hollow member. A breathing chamber is provided by sealing at least a portion of the hollow member such that outside air is prevented from entering the breathing chamber. A pressurized port of the hydraulic cylinder is adapted for connection to a pressurized hydraulic fluid source, and an un-pressurized breathing port of the hydraulic cylinder is connected to the breathing chamber such that air can flow between the breathing port and the breathing chamber.

REFERENCES:
patent: 4505337 (1985-03-01), Ryan
patent: 3329832 (1985-02-01), None
patent: 263017 (1988-12-01), None
patent: 2343186 (1977-09-01), None
patent: 2 267 889 (2006-01-01), None

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