Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Casters – Locked
Patent
1984-11-19
1987-01-20
Silverberg, Fred
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Casters
Locked
16 44, B60B 3300
Patent
active
046370935
ABSTRACT:
A caster wherein a rotary yoke (4) rotatably supporting a wheel (8) is supported by a vertically extending shaft (5) so that it is rotatable relative to a fixed bracket (3). The rotary yoke (4) is supported so that it is vertically movable relative to the fixed bracket (3) while overlapping the lower end of the latter. A cushion spring (6) downwardly urging the rotary yoke (4) is interposed between the fixed bracket (3) and the rotary yoke (4). Further, the caster is provided with a locking mechanism (10) for selectively stopping the inherent function of the caster of changing the direction of travel of the wheel.
REFERENCES:
patent: 2972163 (1961-02-01), Ross et al.
patent: 4184227 (1980-01-01), Propst et al.
patent: 4349938 (1982-09-01), Fontana
patent: 4453287 (1984-06-01), Kassai
patent: 4491335 (1985-01-01), Evron
Aprica Kassai Kabushikikaisha
Fasse W. G.
Kane, Jr. D. H.
Silverberg Fred
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