Load alternation loading device
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United States of America Patent
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Oct 28, 1997
Grant Date -
N/A
app pub date -
Mar 29, 1996
filing date -
Jul 26, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
A load alternation counting device for an actuation device that is periodically hydraulically loaded has a cylinder and a piston sealingly positioned within the cylinder and axially displaceable therein. A pressure connector is provided for connecting the cylinder to a hydraulic loading device of the actuation device such that the piston is axially loaded when hydraulic loading of the actuation device occurs. A counter is switchable by an axial displacement of the piston within the cylinder. A spring for biasing the piston in a direction away from the counter is provided. The spring has a spring force such that switching of the counter by the axial displacement of the piston occurs only when a preset hydraulic pressure is surpassed.
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