Roller or caster with electrically conductive wiper contact

Details Roller or caster with electrically conductive wiper contact Roller or caster with electrically conductive wiper contact

1987-03-11

1989-02-28

Silverberg, Fred A.

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

Casters

Wheels

16 18R, 361219, B60B 3300

Patent

active

048073288

ABSTRACT:
A roller intended in particular for office furniture comprises a supporting body (1) made from a plastic material, an axle (2) mounted in the supporting body, at least one wheel (2) seated on the axle, a metallic pin (5) seated rotatably in the metallic body and arranged in offset position relative to the axle (2), in a plane extending perpendicularly to the axle, and a wiper contact conductively connected with the pin (5) and provided with a resilient portion projecting beyond the plane (20) extending perpendicularly to the pin (5) and being tangent to the at least one wheel (3). The resilient portion of the wiper contact is formed by a helical spring (12) standing substantially perpendicular to the tangential plane (20) and carrying on its free end a contact body (15) projecting beyond the tangential plane (20).

REFERENCES:
patent: 2280327 (1942-04-01), Ware
patent: 2728032 (1955-12-01), Foltz
patent: 2753491 (1956-07-01), Legge
patent: 4120071 (1978-10-01), Crescenzi
patent: 4290166 (1981-09-01), Melara

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