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:
Jan. 31, 1989
Filed:
Jul. 17, 1987
Applicant:
Inventors:
Thomas Holmes, Sutton Coldfield, GB;
Phillip N Griffiths, Sutton Coldfield, GB;
Assignee:
S P Tyres U K Limited, Birmingham, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C / ; B60C / ; B60B / ;
U.S. Cl.
CPC ...
1523794 ; 1523814 ;
Abstract
A vehicle wheel rim is disclosed a pair of bead seats, and axially inwards of and adjacent to each bead seat a circumferentially extending tire toe engaging groove. There is a secondary bead retaining means between the bead seat and the groove comprising a hump having a height measured radially from the bead seat surface adjacent to the hump of 1 to 3.0 mm. The hump preferably has a steep surface on its axially outer edge. The resultant wheel still correctly seats a normal tire with the toe engaging the hump when the tire is deflated and correctly engages in a TD type of tire with the toe in the groove.