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. 23, 1999
Filed:
Apr. 09, 1997
Richard J Richardson, Simi Valley, CA (US);
Charles E Crown, San Fernando, CA (US);
Anthony's Manufacturing Company, San Fernando, CA (US);
Abstract
A wheel unit is disclosed for supporting a structure for movement on a track. The unit includes a rotatable wheel having a substantially flat bearing surface and supported on an axis for running on a track. A housing supports the wheel and includes a convex-shaped guide for maintaining the wheel on the track. A wheel and track combination is also disclosed wherein the wheel has a contact surface having a first dimension and supported by the housing to rotate about an axis. The track supports the housing and wheel and includes a contact surface for contacting the contact surface of the wheel and wherein the contact surface of the track has a second dimension larger than the first dimension of the contact surface on the wheel. Preferably, a guide keeps the wheel on the track while permitting the wheel to move laterally on the track.