US 12,115,826 B2
Gas spring assembly for a vehicle suspension system
Roy Venton-Walters, Neshkoro, WI (US); Aaron J. Rositch, Oshkosh, WI (US); Jesse L. Knoble, Oshkosh, WI (US); Erik Ellifson, Oshkosh, WI (US); and Mark L. Steckling, Neenah, WI (US)
Assigned to Oshkosh Defense, LLC, Oshkosh, WI (US)
Filed by Oshkosh Defense, LLC, Oshkosh, WI (US)
Filed on Jan. 14, 2022, as Appl. No. 17/576,085.
Application 17/576,085 is a continuation of application No. 17/462,966, filed on Aug. 31, 2021, granted, now 11,225,120.
Application 17/462,966 is a continuation of application No. 16/515,631, filed on Jul. 18, 2019, granted, now 11,225,119.
Application 16/515,631 is a continuation of application No. 15/631,800, filed on Jun. 23, 2017, granted, now 10,421,332.
Application 15/631,800 is a continuation of application No. 14/671,650, filed on Mar. 27, 2015, granted, now 9,688,112.
Application 14/671,650 is a continuation of application No. 14/305,812, filed on Jun. 16, 2014, granted, now 8,991,834.
Application 14/305,812 is a continuation of application No. 13/908,785, filed on Jun. 3, 2013, granted, now 8,764,029.
Application 13/908,785 is a continuation of application No. 12/872,782, filed on Aug. 31, 2010, granted, now 8,465,025.
Prior Publication US 2022/0134834 A1, May 5, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B60G 17/052 (2006.01); B60G 11/27 (2006.01); B60G 11/30 (2006.01); B60G 15/12 (2006.01); B60G 17/00 (2006.01); B60G 17/04 (2006.01); F16F 9/096 (2006.01)
CPC B60G 17/052 (2013.01) [B60G 11/27 (2013.01); B60G 11/30 (2013.01); B60G 15/12 (2013.01); B60G 17/00 (2013.01); B60G 17/04 (2013.01); B60G 17/0408 (2013.01); B60G 17/0525 (2013.01); F16F 9/096 (2013.01); B60G 2202/152 (2013.01); B60G 2202/154 (2013.01); B60G 2202/32 (2013.01); B60G 2500/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A vehicle suspension system comprising a gas spring, the gas spring comprising:
a cylinder;
a rod movable relative to the cylinder, the rod and the cylinder at least partially defining a chamber having a variable volume and containing a first pressurized gas therein; and
an accumulator in communication with the chamber and containing a second pressurized gas therein, the gas spring providing a first spring rate when the first pressurized gas is pressurized below a threshold pressure and a second spring rate when the first pressurized gas is pressurized above the threshold pressure.