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Class Information
Number: 188/322.15
Name: Brakes > Internal-resistance motion retarder > Valve structure or location > Piston valve detail (e.g., seat design, structural arrangement, metering element)
Description: Device wherein the container includes a cylindrical chamber having a piston which reciprocates within the chamber, the flow-regulating element or assembly mounted on or in the piston to regulate fluid flow through an aperture in the piston.










Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
8701846 Inverted strut comprising an air damper combined with a hydraulic stop Apr. 22, 2014
8668061 Nested check high speed valve Mar. 11, 2014
8668062 Damper for furniture Mar. 11, 2014
8657085 Air damper Feb. 25, 2014
8651252 Shock absorber Feb. 18, 2014
8651253 Damping device with multistage variable damping characteristics, particularly for damping moveable furniture parts Feb. 18, 2014
8641022 Front fork Feb. 4, 2014
8627933 Two stage valve and hydraulic damped valve Jan. 14, 2014
8590678 Nested check high speed valve Nov. 26, 2013
8590677 Shock absorber Nov. 26, 2013
8590680 Shock absorber Nov. 26, 2013
8584818 Shock absorber Nov. 19, 2013
8573605 Active suspension system and hydraulic ram therefor Nov. 5, 2013
8561766 Piston-cylinder unit Oct. 22, 2013
8556049 Damping force controlling valve assembly for shock absorber Oct. 15, 2013
8544619 Fluid pressure shock absorber Oct. 1, 2013
8544621 Shock absorber Oct. 1, 2013
8528708 Air damper Sep. 10, 2013
8517154 Shock absorber Aug. 27, 2013
8511446 Nested check high speed valve Aug. 20, 2013
8499905 Front fork Aug. 6, 2013
8490763 Delay return gas spring Jul. 23, 2013
8490762 Magnetorheological (MR) piston ring and MR damper having same Jul. 23, 2013
8479895 Vibration damper with stroke-dependent damping force Jul. 9, 2013
8453810 Damper device Jun. 4, 2013
8448761 Valve mechanism for a gas suspension system May. 28, 2013
8447466 Method for controlling pressure in a compressed-air accumulator of a vehicle level-control system May. 21, 2013
8439173 Methods and apparatus for a suspension system with progressive resistance May. 14, 2013
8430217 Damper Apr. 30, 2013
8427082 Method for absorbing the displacement of a plunger in a linear electrodynamic motor under the influence of an external force Apr. 23, 2013
8360215 Two-stage slave cylinder Jan. 29, 2013
8342301 Shock absorber Jan. 1, 2013
8336684 Stop damper Dec. 25, 2012
8333270 Floating piston valve of amplitude selective shock absorber Dec. 18, 2012
8307964 Low-noise shock absorber Nov. 13, 2012
8302746 Hydraulic shock absorber Nov. 6, 2012
8297418 Nested check high speed valve Oct. 30, 2012
8245822 Amplitude selective shock absorber Aug. 21, 2012
8245823 Vibration damper Aug. 21, 2012
8240439 Vehicle damper of variable damping force Aug. 14, 2012
8240440 Device for lifting a hatch pivotable around a pivot axis Aug. 14, 2012
8235186 Hydraulic damper spool valve Aug. 7, 2012
8235188 Damping element Aug. 7, 2012
8220604 Damping force variable valve and shock absorber including the same Jul. 17, 2012
8220602 Device for damping or decelerating movable parts or pieces of furniture Jul. 17, 2012
8210330 Electronically controlled frequency dependent damping Jul. 3, 2012
8205730 Shock absorber with pressure-controlled damping Jun. 26, 2012
8201669 Amplitude sensitive damper apparatus Jun. 19, 2012
8181758 Damping device May. 22, 2012
8177043 Steering damping method for vehicle and steering damping device for vehicle May. 15, 2012

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