Retractable roller assembly

Details Retractable roller assembly Retractable roller assembly

1981-02-03

1983-08-09

Silverberg, Fred

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

Casters

Leg elevators

16 42R, 190 18A, 280 37, B60B 3306

Patent

active

043970621

ABSTRACT:
A rotatable roller assembly includes a roller, a housing, a support pivotably connected at one end to the housing for pivotal movement between a first retracted position and a second extended position, the roller being rotatably connected to the other end of the support, first and second notches defined in the support for establishing the first and second positions, respectively, and a locking mechanism slideably movable into and out of locking engagement with the first and second notches to effect releasable locking of the support and thus the roller in the first and second positions, respectively.

REFERENCES:
patent: 234496 (1880-11-01), Simmons
patent: 2596578 (1952-05-01), McIntyre et al.
patent: 3716890 (1973-02-01), Benson
patent: 4097955 (1978-07-01), Foge et al.

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