US 6,499,184 B2
Elastomeric biased caster
Jack R. Plate,
Clarklake, Mich. (US)
Assigned to Ross Design & Engineering, Inc.,
Cement City, Mich. (US)
Filed on 14-May-2001, as Appl. No. Ross Design & Engineering, Inc.,
Cement City, Mich. (US)
Int. Cl.7B60B 33/00
US 6,499,184 B2
Elastomeric biased caster
Jack R. Plate,
Clarklake, Mich. (US)
Assigned to Ross Design & Engineering, Inc.,
Cement City, Mich. (US)
Filed on May 14, 2001, as Appl. No. 9/853,795.
Prior Publication US 2002/0166201 A1, Nov. 14, 2002
Int. Cl.7B60B 33/00
U.S. Cl. 168212;44
6 Claims
1. An elastomerically biased caster comprising, in combination, a support adapted to be mounted upon structure supported by
the caster, a caster body mounted upon said support, an elongated tubular housing defined on said caster body having ends
and a non-circular inner transverse cross section, an exteriorly non-circular core longitudinally extending through said housing,
said core having ends, stop projections defined on said arms adapted to engage said caster body upon predetermined movement
of said arms toward said caster body, a caster arm having upper and lower ends affixed to each end of said core at said upper
end, a caster wheel rotatably interposed between said arms lower ends, an elastomeric material within said tubular housing
closely confirming to the interior configuration of said housing and the exterior configuration of said core in a non-movable
surface relationship thereto, said elastomeric material resiliently transferring weight from said support to said caster,
said non-circular core comprising a tubular element having a polygonal transverse cross section and an elongated metal insert
having a polygonal transverse cross section corresponding to and snugly fitting within said element, said insert having ends
extending beyond the length of said tubular housing, said arms upper end being non-rotatably affixed to said insert ends.
