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:
Jul. 22, 2025

Filed:

Nov. 09, 2021
Applicant:

Oshkosh Defense, Llc, Oshkosh, WI (US);

Inventors:

Paul Dumitru, Oshkosh, WI (US);

Aaron Rositch, Oshkosh, WI (US);

Erik Ellifson, Oshkosh, WI (US);

Patrick Dillman, Hartford, WI (US);

Kai Schubart, Oshkosh, WI (US);

Robert Sollenskog, Oshkosh, WI (US);

Assignee:

OSHKOSH DEFENSE, LLC, Oshkosh, WI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 9/49 (2006.01); B60G 3/20 (2006.01); B60G 13/00 (2006.01); B60G 15/12 (2006.01); B60G 17/08 (2006.01); F16F 9/16 (2006.01); F16F 9/36 (2006.01); F16F 9/512 (2006.01); F16F 15/16 (2006.01);
U.S. Cl.
CPC ...
F16F 9/49 (2013.01); B60G 3/20 (2013.01); B60G 13/005 (2013.01); B60G 15/12 (2013.01); B60G 17/08 (2013.01); F16F 9/16 (2013.01); F16F 9/368 (2013.01); F16F 9/512 (2013.01); B60G 2202/314 (2013.01); B60G 2204/129 (2013.01); B60G 2206/41 (2013.01); B60G 2206/8101 (2013.01); B60G 2206/8105 (2013.01); B60G 2500/10 (2013.01); B60G 2500/30 (2013.01); F16F 15/161 (2013.01); F16F 2222/12 (2013.01);
Abstract

A damper assembly includes a tubular member including a sidewall and a shoulder. The damper assembly includes a rod and a piston coupled to the rod. A secondary piston has a second contact surface, an opposing second surface, an inner cylindrical face defining a central aperture that receives the rod, and an outer cylindrical face. The opposing second surface includes one or more surface grooves, extending between the inner cylindrical face and the outer cylindrical face along the opposing second surface, and one or more bypass orifices disposed about the body member. The bypass orifices extend along the inner cylindrical face between the second contact surface and the opposing second surface. The secondary piston defines a channel extending between the inner cylindrical face and an outer periphery of the body member. The channel and bypass orifices form a fluid flow path when the piston contacts the secondary piston.


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