Gripper assembly with improved center repeatability

Details Gripper assembly with improved center repeatability Gripper assembly with improved center repeatability

1997-12-04

1999-10-19

Ellis, Christopher P.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Locking device

2941191, 901 37, B66C 144, B25J 1508

Patent

active

059675810

ABSTRACT:
A gripper assembly for use in automated machines or robotics having a piston driven activator for effecting corresponding linear parallel displacement of opposed finger carriers and associated gripper fingers between a retracted and protracted position with improved center repeatability that is achieved by keying or maintaining the piston driven activator firmly centered relative to the gripper housing in a precise and positive manner that is least effected by wear. The gripper assembly may also be rendered fluid tight to operate in a fluid environment by providing seals between the opposed reciprocating finger carriers and the gripper housing as the finger carriers are displaced in a linear parallel manner between a protracted and retracted position.

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patent: 5620223 (1997-04-01), Mills

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