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:
Feb. 13, 1990
Filed:
Mar. 13, 1989
James E Baumgarten, San Pedro, CA (US);
Columbia Manufacturing Corporation, Gardena, CA (US);
Abstract
A roller assembly is provided as an easily replaceable assembly for use with a sliding door. The roller assembly includes a roller or wheel mounted in a roller housing and carried in a cantilevered manner at one end of a leaf spring. The opposite end of the leaf spring is permanently bent to form a hook which is engageable with a mounting tab on an upper or lower door edge through a mounting insertion gap in the door edge such that the leaf spring extends across a bearing tab. When the hook is engaged on the mounting tab the roller is carried in a roller receiving pocket in the door edge such that the leaf spring bears against a bearing tab. The leaf spring allows the roller to move into and out of a roller receiving pocket to accommodate imperfections and obstructions in a stationary track on the door frame in which the roller travels.