| Patents for F16F 9 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium (26,706) |
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| 07/09/1991 | US5030490 Viscoelastic damping structures and related manufacturing method |
| 07/09/1991 | US5029919 Pneumatic shock absorber for an automobile bumper having venting means |
| 07/09/1991 | US5029825 Fluid filled engine mount |
| 07/09/1991 | US5029677 Damping system for vibrating body |
| 07/04/1991 | DE4023355C1 Hydraulic shock absorber for vehicle - incorporates elastic body with grooves, enclosing sleeve |
| 07/03/1991 | EP0435834A1 Device for checking and recharging car dampers using high-pressure gas |
| 07/03/1991 | EP0435357A1 Bypass valve with variable characteristics for adjustable vibration damper |
| 07/03/1991 | EP0434729A1 Pneumatic spring |
| 07/02/1991 | US5028037 Automatic lifting apparatus |
| 07/02/1991 | US5027928 Aircraft landing gear |
| 07/02/1991 | US5027927 Variable rate shock absorber |
| 07/02/1991 | US5027637 Die cushion for applying pressure to a press machine via gas pressurized push rods |
| 06/27/1991 | DE4041481A1 Hydraulically damped mounting - has electro-rheologic fluid with variable field flow connection |
| 06/27/1991 | DE4008324C1 Variable hydraulic damper assembly - has piston with hollow end carrying two valve seat rings |
| 06/27/1991 | DE3942652A1 Telescopic shock absorber for vehicle suspension - incorporates system for extending piston rod guide |
| 06/27/1991 | DE3942106A1 Hydropneumatic piston-cylinder for vehicle suspension - makes use of movable cylinder free from mechanical stresses |
| 06/26/1991 | EP0434492A1 Vibration damper for power unit |
| 06/26/1991 | EP0433701A2 Pressure-activated valve |
| 06/25/1991 | US5025899 Method and apparatus for absorbing mechanical shock |
| 06/20/1991 | DE3941359A1 Safety valve in form of grease filled nipple - incorporates ball and spring overload arrangement |
| 06/19/1991 | EP0432767A1 A positioning device |
| 06/18/1991 | US5024461 Upper support for shock absorber in suspension system, having elastically supported resonance member |
| 06/18/1991 | US5024424 Air-spring, in particular for the use under extreme conditions |
| 06/18/1991 | US5024303 Hatchback locking device |
| 06/18/1991 | US5024302 Apparatus for damping courses of motion |
| 06/18/1991 | US5024301 Telescopic |
| 06/18/1991 | CA1285004C Weldless automotive shock absorber |
| 06/13/1991 | DE3937186A1 Fastening for gas compression spring - consists of cylinder and piston rod, with movable ring or sleeve and sprung bar |
| 06/11/1991 | US5022501 Hydraulic type vehicle height adjusting device for attachment to vehicle shock absorber |
| 06/06/1991 | DE4037101A1 Shock absorber for motor vehicle - consists of outer pipe forming hollow support, with inert and rigid mass, and expander struts |
| 06/06/1991 | DE4035784A1 Air suspension with weight sensor - has sensing coil integral to gas spring walls |
| 06/06/1991 | DE3940002A1 Vibration damper for small and large vibration amplitudes - has piston movable in all directions in viscous liquid for simultaneous damping in all 3 optical directions |
| 06/05/1991 | EP0430083A1 Method and arrangement for the regulation of the damping of rotating masses |
| 06/04/1991 | US5020826 Vehicle suspension system |
| 06/04/1991 | US5020825 Method and apparatus for absorbing mechanical shock |
| 05/30/1991 | WO1991007606A1 Adjustable shock-absorber |
| 05/30/1991 | WO1991007605A1 Compression spring |
| 05/29/1991 | DE3939098A1 Combined shock absorber and level regulator - is for motor vehicle and has induction coil to indicate vehicle height |
| 05/29/1991 | DE3939012A1 Vehicle shock absorber - has operating cylinder with piston and piston rod, with chambers having inner and outer walls |
| 05/28/1991 | US5019119 Electro-rheological fuel injector |
| 05/28/1991 | US5018608 Hydraulic shock absorber |
| 05/28/1991 | US5018607 Hydraulic dashpot for pipeline systems |
| 05/28/1991 | US5018606 Electrophoretic fluid damper |
| 05/23/1991 | DE4030788A1 Hydraulic shock absorber |
| 05/21/1991 | US5016910 Suspension cylinder control system for motor vehicles |
| 05/21/1991 | US5016908 Method and apparatus for controlling shock absorbers |
| 05/16/1991 | WO1991006796A1 Double acting control valve for hydraulic exercise machine |
| 05/16/1991 | DE3937819A1 Reinforcements for pneumatic springs etc. - consist of polyamide monofilaments with flattened type of cross=section and rounded edges embedded in elastomer |
| 05/16/1991 | DE3937606A1 Rotating drive for servo piston rod - has hydraulic motor on bottom of supported piston rod in line with working chamber |
| 05/16/1991 | DE3937454A1 Regelbarer schwingungsdaempfer Controllable shock absorber |
| 05/16/1991 | DE3937167A1 Hydraulic pneumatic piston-cylinder for vehicle shock absorber - uses piston requiring no seals to reduce friction effects, linked to pneumatic pressure reservoir |
| 05/15/1991 | EP0427468A1 Gas spring |
| 05/15/1991 | EP0427046A1 Vehicle suspension system |
| 05/15/1991 | EP0426725A1 Shock absorber. |
| 05/15/1991 | EP0305382A4 Method and apparatus for absorbing mechanical shock |
| 05/15/1991 | CN2076937U Automobile dashpot radial high-loading support and oil seal device |
| 05/14/1991 | US5015002 Protective bellows |
| 05/14/1991 | US5014966 Adjustable telescopic apparatus |
| 05/14/1991 | US5014829 Electro-rheological shock absorber |
| 05/09/1991 | CA2028573A1 Gas spring |
| 05/08/1991 | EP0426340A1 Vehicle suspension apparatus |
| 05/08/1991 | EP0426339A1 Vehicle suspension apparatus |
| 05/08/1991 | EP0425885A2 Hydropneumatic spring system |
| 05/08/1991 | EP0425876A2 Hydropneumatic piston accumulator |
| 05/08/1991 | DE3936453A1 Damping device for hydropneumatic wheel suspension - has two=way valve for each throttle operated electromagnetically via respective magnets |
| 05/07/1991 | US5012996 Length variable and lockable positioning device |
| 05/07/1991 | US5012551 Furniture hinge |
| 05/07/1991 | CA1283931C Tunable electrorheological fluid mount |
| 05/02/1991 | EP0425329A1 Hydraulic cylinder with variable compressive force and power steering device for an automotive vehicle equipped with such a cylinder |
| 05/02/1991 | EP0424843A1 Suspension control apparatus |
| 05/02/1991 | EP0424372A1 A combination seal for sealing between two machine parts. |
| 05/02/1991 | DE3936034A1 Hydro-pneumatic vehicle suspension - has reduced pressure on pneumatic spring and with larger area piston |
| 05/02/1991 | DE3935608A1 Piston cylinder unit as shock or vibration absorber - has cylinder and equaliser compartments with spring chamber |
| 05/02/1991 | DE3935499A1 Combined rubber gas spring with base plate - has sealed hollow cylinder fixed to it with valve, with central eyelet in top end |
| 04/30/1991 | US5011121 Seal for gas spring |
| 04/30/1991 | US5011113 Fluid control valve |
| 04/30/1991 | CA1283667C Quick connect strut mount |
| 04/25/1991 | DE3935159A1 Piston for hydraulic telescopic vibration damper - has two parts each with group of ducts, with valve shaped disc section and piston parts |
| 04/25/1991 | DE3935107A1 Hydropneumatic piston-cylinder unit - has cylinder with inner pipe, piston rod, separating piston, chamber pipe and control |
| 04/25/1991 | DE3934821A1 Air spring for heavy vehicle - incorporates height adjustable stop to lower suspension for loading and unloading |
| 04/24/1991 | EP0423573A1 End stop damper for damping the energy applied to vehicle wheels |
| 04/23/1991 | US5009450 Vibration-absorber sensor for a semi-actively controlled chasis with a relative-velocity sensor and with electronics for processing their outputs |
| 04/23/1991 | US5009401 For vehicles |
| 04/18/1991 | WO1991005180A1 A progressive air spring |
| 04/18/1991 | WO1991004876A1 Vehicle wheel suspension method |
| 04/18/1991 | DE3934386A1 Piston-cylinder unit esp. shock damper - has double-walled enclosure of internal tube contg. equalisation chamber withstanding high loads with short stroke |
| 04/18/1991 | DE3934385A1 Hydro-pneumatic cylindrical suspension - has hydraulic cylinder acting on two gas spring reservoirs, connected in parallel with each other |
| 04/17/1991 | EP0422458A2 Displacement transducer |
| 04/17/1991 | EP0422338A2 Liquid-dampening vibration absorber |
| 04/16/1991 | US5007659 Of an automobile |
| 04/16/1991 | US5007276 Seal arrangement for use in a press assembly |
| 04/11/1991 | DE4031626A1 Hydraulic shock absorber with at least one person - has cylinder, and drive unit mounted on rotary axle, with transmission piece |
| 04/11/1991 | DE3933624A1 Cylinder piston unit used as block absorber - consists of cylinder containing hollow cylindrical rod and inner pipe, with seal, fixture and holes |
| 04/11/1991 | DE3933252A1 Hydraulically shock absorbed bearing - has hydraulic chamber with partition dividing it into bottom and top compartment, with membrane and disc |
| 04/11/1991 | DE3933248A1 Hydraulically damped resilient mounting for motor vehicle engine - uses electromagnet and slider to immobilise or release damping disc immersed in oil under elastomeric ring |
| 04/11/1991 | DE3932287A1 Hydropneumatic piston-cylinder damper - has floating piston separating compensation chamber with compressible fluid from second chamber |
| 04/10/1991 | EP0421470A2 A pressure tube-piston device |
| 04/10/1991 | EP0420903A1 Pneumatic anti-vibration mounting |
| 04/09/1991 | US5005859 Motor vehicle suspension with rotary damper |
| 04/09/1991 | US5005808 Airspring end member and airspring assembly |