Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Casters – Detachable
Patent
1986-04-10
1987-10-13
Silverberg, Fred
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Casters
Detachable
403348, B60B 3300
Patent
active
046988750
ABSTRACT:
Casters are detachably mounted upon the underside of the molded plastic frame of a dolly by the use of a single bolt. The caster is provided with a flat, horizontally disposed mounting plate which underlies and bears against a horizontal surface on the bottom of the frame enclosed within a peripheral sidewall integral with and projecting downwardly from the frame. The mounting plate can be vertically moved into face-to-face engagement with the horizontal surface on the frame when in a first angular orientation and then rotated about a vertical axis to a second angular orientation in which webs on the sidewall spaced below the horizontal surface underlie portions of the plate to retain it against vertical separation from the frame. A single bolt detachably retains the plate against rotation from this last position.
REFERENCES:
patent: 2379984 (1945-07-01), Nereaux
patent: 3860209 (1975-01-01), Strecker
patent: 3879798 (1975-04-01), Krulwich
patent: 3987875 (1976-10-01), Szabo
patent: 4332052 (1982-06-01), Remington
patent: 4422212 (1983-12-01), Sheiman et al.
Pinckney Molded Plastics, Inc.
Silverberg Fred
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