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:
Nov. 25, 1986
Filed:
Jan. 22, 1985
Applicant:
Inventor:
Donald F Wilkes, Albuquerque, NM (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60B / ;
U.S. Cl.
CPC ...
16 1 / ; 16 21 ; 16 48 ;
Abstract
A rolling support system has a pair of wheels mounted for rotation about a first axis with bearings that have a first resistance to rotation of the wheels. A stem assembly includes a portion to which the first axis is attached and further includes a thrust bearing having a second resistance to rotation. The second resistance to rotation being lower than the first resistance to rotation so that during movement of the system, the first resistance to rotation is effective to move the wheels into alignment with the direction of travel. To reduce noise as well as to reduce potential damage to an underlying surface, the periphery of each wheel may include a tire.