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. 08, 1986
Filed:
Feb. 18, 1983
Eugene M Van Kanegan, Elmhurst, IL (US);
Other;
Abstract
A transmission device for mechanical power having continuously variable drive ratio and the capability for a wide ratio range is inherently simple in mechanical construction thru use of a rotary gear pump which hydraulically drives a rotary gear motor. Pump and motor are variable in displacement and a construction is taught which axially positions the pump and motor elements so their displacements are adjusted in opposite volumetric directions when effecting a drive ratio adjustment, thereby providing a wide range in possible drive ratios and still maintaining simplicity.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile