Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Casters – Leg elevators
Patent
1989-10-03
1991-03-12
Seidel, Richard K.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Casters
Leg elevators
16 33, 16DIG42, B60B 3306
Patent
active
049989405
ABSTRACT:
An object may be easily moved across a surface by means of a rotatable roller mechanism, and may be secured in a desired location on that surface by rotation of the roller mechanism. The rotatable roller mechanism comprises a rigid plate containing a slot, a bar designed to seat within that slot, a holding mechanism allowing the bar to rotate in close proximity to the slot in the rigid plate, and a roller mechanism attached to the bar. The roller mechanism may consist of wheels or flat rollers surrounding an axle, which is attached to the bar by two connecting pieces. The rigid plate is attached to the underside of the object. When the object is lifted, the bar rotates in the holding mechanism to a position perpendicular to the rigid plate. The bar is held in this position when the object is lowered, by means of the bar fitting into the slot. In this manner the rollers are held against the surface, and the object may be easily moved across the surface. By lifting the object, the bar may be rotated to a stationary position parallel to the rigid plate. When the object is lowered with the bar in this stationary position, the roller mechanism does not contact the surface, and the object will remain in a fixed position.
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patent: 4008507 (1977-02-01), Smith
Cuda Carmine
Gould Linda Flewellen
Seidel Richard K.
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