The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 1992
Filed:
Apr. 26, 1991
Devon T Siesholtz, Boyertown, PA (US);
Nathaniel Saint, Morgantown, PA (US);
Graco Metal Products, Inc., Elverson, PA (US);
Abstract
A double wheel caster for being rotatably mounted on a leg of a transport carrier includes a support rod having a center portion and opposite first and second end portions. The center portion of the support rod is rotatably positioned within an opening located in a wheel caster trailing housing. A pair of caster wheels are rotatably positioned on the first and second end portions of the support rod. Each caster wheel has an aperture generally centrally located therethrough and a plurality of fingers extending radially inward and into engagement with the support rod such that the caster wheels are frictionally mounted on the support rod. Upon movement of the transport carrier in a direction which forces one caster wheel to rotate faster than the other, the frictional mounting inhibits the one caster from freely rotating with respect to the other to thereby prevent shimmying.