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.

Date of Patent:
Sep. 10, 2019

Filed:

Feb. 25, 2016
Applicant:

Dajun Zhou, Troy, MI (US);

Inventor:

Dajun Zhou, Troy, MI (US);

Assignee:

FCA US LLC, Auburn Hills, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 24/08 (2006.01); F16F 13/00 (2006.01); F16F 9/53 (2006.01); F16F 9/06 (2006.01);
U.S. Cl.
CPC ...
F16F 13/002 (2013.01); B21D 24/08 (2013.01); F16F 9/061 (2013.01); F16F 9/535 (2013.01);
Abstract

A metal stamping tool includes a hybrid magnetorheological-nitrogen spring including a housing having an interior wall defining an interior volume. A fixed divider separates the interior volume into a nitrogen gas chamber and a magnetorheological fluid chamber. A piston extends into both the nitrogen gas chamber and the magnetorheological fluid chamber. The piston defines a magnetorheological fluid gap within the magnetorheological fluid chamber. An electric coil positioned adjacent the fluid gap to apply a magnetic field to magnetorheological fluid within the fluid gap when the electric coil is energized.


Find Patent Forward Citations

Zhou, Dajun. (2019). Metal stamping tool with a hybrid magnetorheological-nitrogen spring (U.S. Patent No. 10408296). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10408296

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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