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. 26, 1980
Filed:
Nov. 03, 1977
Applicant:
Inventors:
James L Evans, Ypsilanti, MI (US);
John A Main, Plymouth, MI (US);
Assignee:
Kelsey-Hayes Co., Romulus, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C / ; B60B / ;
U.S. Cl.
CPC ...
1523811 ; 301 97 ;
Abstract
A wheel rim construction that cooperates with the tire bead seat to insure retention of the tire, even under a 'run flat' condition. The bead seat portion of the rim is formed with a plurality of circumferentially extending radial projections that cause gripping of the tire bead to form a mechanical interlock between the projections and wheel flange. The radial projections are formed during the roll forming of the wheel rim by extruding the rim material into grooves in the upper finishing roll so that the permanently formed projections lie radially outward of the basic rim profile.