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:
Jul. 25, 1995
Filed:
Dec. 29, 1993
William T Guiher, Greenbrier, TN (US);
Unarco Material Handling, Inc., Springfield, TN (US);
Abstract
A roller track for a storage rack arranged for gravitational flow of load-bearing pallets comprises two steel walls disposed in parallel relation to each other and a plurality of freely rotatable rollers journalled between the walls, each on a steel spindle supported by the walls, in such manner that the rollers extend upwardly from a space between the walls. The ends of at least some of said spindles are welded to the walls by welds disposed substantially between the spindle ends and the planes defined by the outer surfaces of the walls, preferably between the spindle ends and the walls. In embodiments wherein the welds are disposed substantially between the spindle ends and the walls, either the ends of the welded spindles are frusto-conical or the walls are dimpled inwardly at the ends of the welded spindles, so as to facilitate spot welding. In another embodiment, the welds comprise filler metal contained substantially within apertures in the walls.