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:
Mar. 09, 2004
Filed:
Sep. 18, 2002
Theodore S. Gorniak, North East, PA (US);
Ridg-U-Rak, Inc., North East, PA (US);
Abstract
A wheel and axle assembly for a material handling cart has a wheel with a bearing and an axle that extends through the bearing. The axle has a bolt cavity with female cavity threads and an inside tapered portion. A bolt having male bolt threads and an outside tapered portion engages the female cavity threads. The head of the bolt has a head diameter that is greater than the inside diameter of the bearing and therefore locks the bolt in position. When the outside tapered portion of the bolt contacts the inside tapered portion of the bolt cavity, the head of the bolt locks the bearing against a shoulder of the axle. To prevent the bolt from loosening its engagement with the bolt cavity, a locking material is added to the male threads of the bolt.