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:
Sep. 27, 1988
Filed:
Jul. 16, 1987
Phillip N Griffiths, Sutton Coldfield, GB;
Mathew Simpson, Erdington, GB;
SP Tyres UK Ltd, Birmingham, GB;
Abstract
A vehicle wheel rim includes a pair of spaced-apart tire bead seats, axially outwards of each bead seat a tire retaining flange, and axially inwards but immediately adjacent thereto a circumferentially extending tire toe engaging groove. The groove is subdivided in the circumferential direction by at least three bridge members each of which is short in the circumferential direction and traverses the groove to provide a bridge surface substantially at the top of the groove such that the bridge surface may support a normal tire bead when used on the wheel or alternatively a tire with a bead retention toe may engage the toe in the groove to provide bead retention in use. Preferably four to eight bridge members are provided. The resultant wheel safely carries a normal tire or a TD type of tire with a projecting, bead retaining toe.