Actuator cylinder with mechanism to reduce stiction

Details Actuator cylinder with mechanism to reduce stiction Actuator cylinder with mechanism to reduce stiction

1996-11-06

1998-03-17

Denion, Thomas E.

Expansible chamber devices

One working member reciprocates and another rotates common...

92 31, 92168, F01B 2100

Patent

active

057274452

ABSTRACT:
A linear actuator cylinder reduces the stiction otherwise present during initiation of rod extension or retraction. The actuator cylinder includes a cylinder assembly having a piston that slides longitudinally through a cylinder barrel. A rod is connected to the piston and extends from the cylinder barrel. A rotator mechanism is connected to the rod to rotate the piston and rod with respect to the cylinder barrel. The rotator mechanism typically includes a hydraulic or electric motor connected to the rod by, for example, a chain engaged with a pair of sprockets.

REFERENCES:
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patent: 5381723 (1995-01-01), Nilsson et al.
patent: 5423727 (1995-06-01), Fellows
patent: 5456160 (1995-10-01), Caldwell
patent: 5467689 (1995-11-01), Carlin et al.

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