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:
Oct. 21, 2014
Filed:
Dec. 29, 2011
Edward G. Holtgraver, Spring, TX (US);
Edward G. Holtgraver, Spring, TX (US);
Other;
Abstract
A Scotch yoke actuator is disclosed with a dual yoke and a diagonally symmetric design. A pair of shafts and pushing devices apply equal, opposing forces to the yoke, causing end loading forces applied to a rotatable shaft attached to the center of the yoke to be cancelled. In embodiments, the weight of the pushing devices is balanced about the yoke, each shaft extends in only one direction from the yoke, and/or the shafts are supported only by the yoke and the pushing devices. In embodiments that use yoke pins, the yoke pins include rollers or bearings to reduce friction, and/or two pair of yoke pin slots support protruding ends of the yoke pins. The yoke pin slots can extend to edges of a yoke housing face, allowing easy shaft removal and reinstallation, and each shaft can include a split end with extensions on opposing sides of the yoke.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile