US 9,809,075 B2
Gas spring and gas damper assembly and method
Joseph A. Bounds, Fishers, IN (US)
Assigned to Firestone Industrial Products Company, LLC, Nashville, TN (US)
Filed by Firestone Industrial Products Company, LLC, Indianapolis, IN (US)
Filed on Feb. 26, 2016, as Appl. No. 15/55,038.
Application 15/055,038 is a continuation of application No. 14/350,046, granted, now 9,290,073, previously published as PCT/US2012/059146, filed on Oct. 5, 2012.
Claims priority of provisional application 61/543,632, filed on Oct. 5, 2011.
Claims priority of provisional application 61/613,486, filed on Mar. 20, 2012.
Prior Publication US 2016/0176258 A1, Jun. 23, 2016
Int. Cl. B60G 15/12 (2006.01); B60G 15/14 (2006.01); B60G 17/052 (2006.01); F16F 9/04 (2006.01)
CPC B60G 15/12 (2013.01) [B60G 15/14 (2013.01); B60G 17/0521 (2013.01); F16F 9/049 (2013.01); F16F 9/0454 (2013.01); B60G 2202/242 (2013.01); B60G 2202/314 (2013.01); B60G 2202/32 (2013.01); B60G 2204/1262 (2013.01); B60G 2206/00 (2013.01); B60G 2206/40 (2013.01); B60G 2206/80 (2013.01); F16F 2226/04 (2013.01); Y10T 29/49609 (2015.01)] 12 Claims
OG exemplary drawing
 
1. A gas spring and gas damper assembly comprising:
a first end member;
a second end member including a pivot mount;
a gas spring assembly including:
a first wall portion of said first end member;
a second wall portion of said second end member disposed in spaced relation to said first wall portion such that a longitudinal axis is formed therebetween; and,
a first flexible wall section extending circumferentially about said axis and operatively connected between said first and second wall portions such that a first chamber is at least partially defined therebetween; and,
a gas damper assembly including:
a third wall portion disposed in longitudinally-spaced relation to said first wall portion of said gas spring assembly, said third wall portion at least partially forms a roll-off piston;
a second flexible wall section extending circumferentially about said axis and operatively connected between said second wall portion and said third wall portion such that a second chamber is at least partially defined therebetween;
a fourth wall portion including opposing first and second sides, said fourth wall portion being an end element of said second end member and including first and second passages extending therethrough between said first and second sides, said fourth wall portion oriented such that said first side of said fourth wall portion is in fluid communication with said first chamber and said second side is in fluid communication with said second chamber; and,
a damper rod extending through said first passage of said fourth wall portion and operatively connecting said first wall portion of said first end member to said third wall portion of said roll-off piston, said damper rod extending through said first end member and including a pivot mount positioned on an opposite side of said first end member from said first chamber;
said roll-off piston being axially displaceable relative to said damper rod from a first position allowing relative rotational displacement between said damper rod and said roll-off piston and a second position restricting relative rotation between said damper rod and said roll-off piston.