Rod gripper

Details Rod gripper Rod gripper

2005-12-20

2005-12-20

Walsh, John B. (Department: 2151)

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Checks and closers

Pneumatic

C016S002100, C016SDIG017, C016S08600R, C403S374500

Reexamination Certificate

active

06976288

ABSTRACT:
A bar or rod gripper for arresting the linear axial movement of a rod, e.g. the piston rod of a door closure between a door open or closed position, that includes a compressible bushing slidably disposed about the rod or bar, and a canter washer disposed about the compression bushing whereby the canter washer, when tilted, will cause the compression bushing to compress to impose a surface to surface frictional force onto the bar or rod to resist or restrain the axial movement thereof without scoring, pitting or indenting the outer surface of the rod.

REFERENCES:
patent: 404300 (1889-05-01), Perking
patent: 2930070 (1960-03-01), Uebelhoer
patent: 3284841 (1966-11-01), Patriquin
patent: 3591669 (1971-07-01), Memory
patent: 4110868 (1978-09-01), Imazaike
patent: 4483044 (1984-11-01), Johnston et al.
patent: 5630248 (1997-05-01), Luca
patent: 5832562 (1998-11-01), Luca
patent: 5842255 (1998-12-01), Luca
patent: 6032331 (2000-03-01), Alonso
patent: 6056473 (2000-05-01), Schafer

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