Class / Patent application number | Description | Number of patent applications / Date published |
267119000 | Press cushion | 8 |
20080284072 | GAS SPRING ASSEMBLY - A gas spring assembly that is suitable for use on a vehicle suspension system includes a first end member and a second end member that is spaced from the first end member. A flexible wall is secured between the first and second end members and at least partially defines a first gas chamber therebetween. A confinement at least partially forms a second gas chamber that is in communication with the first gas chamber. A porous flow restrictor is operatively disposed between the gas chambers. A suspension system including such a gas spring assembly as well as a method is also included. | 11-20-2008 |
20120018933 | Press cushion for a hydraulic press - A press cushion ( | 01-26-2012 |
20130207326 | Gas Spring and Gas Spring Components - A gas spring for forming equipment, a piston rod for the gas spring, and a shock collar for the gas spring carried by the piston rod. The shock collar may be resiliently flexible, and plastically deformable so as to at least partially collapse, and the piston rod may include features to disrupt a gas spring seal upon at least partial collapse of the shock collar. | 08-15-2013 |
20140191451 | Gas Spring and Overpressure Relief Plug - An overpressure relief plug including a rupture disc and engaging a fill valve in series downstream fluid communication with respect thereto. A gas spring may include a fill port, and the overpressure relief plug and the fill valve in the fill port. | 07-10-2014 |
20140191452 | Gas Spring and Overpressure Relief and Fill Valve Assembly - A gas spring includes a fill valve, and a rupture disc carried by the fill valve. An overpressure relief and fill valve assembly includes a valve housing with a valve passage, the fill valve carried by the valve housing and including a valve stem extending into the valve passage and an overpressure relief passage extending through the fill valve, and a rupture disc carried by the fill valve in communication with the overpressure relief passage. A gas spring may include the valve assembly therein. | 07-10-2014 |
20150008628 | COMPENSATOR FOR UNBALANCED COMPRESSION FORCES FOR PRESS MACHINES - Described is a compensator ( | 01-08-2015 |
20150069682 | Overtravel Pressure Relief for a Gas Spring - A piston rod housing assembly for a gas spring includes a piston rod housing having an interior end, an exterior end axially spaced from the interior end, and an overtravel pressure relief passage extending through the piston rod housing and intersecting the exterior end. | 03-12-2015 |
20150137435 | Overtravel Pressure Relief For A Gas Spring - A gas spring for forming equipment. A casing includes an axially extending side wall, an open end, a transversely extending closed end wall axially spaced from the open end, and a pressure chamber established in part by the side and end walls to receive a gas under pressure. A piston rod is received at least partially in the casing for reciprocation between extended and retracted positions. A piston rod housing is received at least in part in the casing between the piston rod and the casing. An overtravel pressure relief feature includes a vent path that is disposed between the pressure chamber and the outside of the gas spring and that includes a vent passage through the side wall of the casing and a seal that sealingly interrupts the vent path, wherein displacement of the housing into the casing results in opening of the vent path. | 05-21-2015 |