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:
Jul. 21, 1981
Filed:
Dec. 17, 1979
Anwar Daudi, East Lansing, MI (US);
John H Golata, Lansing, MI (US);
Doarde G Triponi, East Lansing, MI (US);
Motor Wheel Corporation, Lansing, MI (US);
Abstract
A pneumatic tire and wheel assembly wherein the wheel is manufactured with mounting holes offset from the geometric center to locate the low point of the first harmonic of radial runout adjacent a given angular location, such as the valve hole, so that, when a tire is mounted thereon with the high point of the first harmonic of radial force variation aligned with the valve hole, the respective harmonics cancel each other to provide a tire and wheel assembly with enhanced rotational characteristics. In an apparatus for forming the wheel mounting holes by axially reciprocating a piercing tool against a wheel disc while the bead seats are clamped between wheel locating jaws, axially opposed jaw pairs are centered on an axis offset from the axis of reciprocation such that the centerline of the mounting holes is correspondingly eccentrically offset from the average bead seat axis.