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. 12, 2017
Filed:
Apr. 24, 2014
Applicant:
Marquette University, Milwaukee, WI (US);
Inventors:
Joseph M. Schimmels, Milwaukee, WI (US);
Daniel Garces, New Berlin, WI (US);
Assignee:
Marquette University, Milwaukee, WI (US);
Primary Examiner:
Int. Cl.
CPC ...
B25J 19/06 (2006.01); F16D 3/56 (2006.01); F16F 1/22 (2006.01); B25J 9/10 (2006.01); B25J 9/12 (2006.01);
U.S. Cl.
CPC ...
B25J 19/068 (2013.01); B25J 9/1005 (2013.01); B25J 9/126 (2013.01); F16D 3/56 (2013.01); F16F 1/22 (2013.01); Y10S 901/19 (2013.01); Y10S 901/23 (2013.01);
Abstract
In one embodiment, a selectable-rate spring comprises a flexure bar connected to a rotatable shaft, the flexure bar having at least one arched portion. The selectable-rate spring also includes at least one rotational contactor connectable to a link member, wherein the rotational contactor rotates about an axis while maintaining contact with the arched portion of the flexure bar. As the rotational contactor rotates, it changes the connection stiffness between the rotatable shaft and the link member.