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:
Dec. 04, 1979
Filed:
Jun. 22, 1978
Robert D Johnson, San Diego, CA (US);
Other;
Abstract
A skateboard is provided with trucks, each of which carries a plurality of wheels mounted in independent suspension. Longitudinally extending swing arms carry the wheel axles forwardly or rearwardly through a yoke mounted under the skateboard by a pivot connection and by a resilient support. The arms are resiliently biased by means of separate springs or torsion bars so that varying pressures across the skateboard platform alter the distance of the skateboard wheels from the underside of the platform and conversely roadway irregularities displace the skateboard wheels towards the platform independently one from another. In one embodiment the swing arms are mounted such that the wheel axles extend substantially across the axis of the resilient support.