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. 04, 2022
Filed:
Nov. 01, 2019
Applicant:
Hrl Laboratories, Llc, Malibu, CA (US);
Inventors:
Andrew C. Keefe, Encino, CA (US);
Geoffrey P. McKnight, Los Angeles, CA (US);
Sloan P. Smith, Calabasas, CA (US);
Christopher B. Churchill, Ventura, CA (US);
Assignee:
HRL Laboratories, LLC, Malibu, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 1/14 (2006.01); F16F 3/02 (2006.01);
U.S. Cl.
CPC ...
F16F 1/145 (2013.01); F16F 3/02 (2013.01); F16F 2228/063 (2013.01);
Abstract
In at least one embodiment, a rotational spring is provided with adjustable stiffness and includes at least one beam arranged about an axis between an input tuning port and an output port, wherein the input tuning port is configured to change an effective bending length of at least one beam so as to change a shear stiffness with respect to the input tuning port and the output port.