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. 17, 1976
Filed:
Jan. 29, 1975
Arnold O DeHart, Rochester, MI (US);
Richard C Rosenberg, Romeo, MI (US);
Edward G Trachman, Troy, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
In accordance with a preferred embodiment of this invention a load supporting lubricant is formed by combining from about 40% to about 60% by volume of a petroleum grease with the balance being small, hard, uniformly sized, steel spheres dispersed throughout the grease. The diameter of the spheres should be within the range of from about 1/2 to about 3/4 millimeters (hereinafter mm) to achieve the minimum coefficient of static friction which is typically about 0.001 or less. When disposed between slidably engaged surfaces, each of said spheres is free to roll at random as one surface moves relative to the other.