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| Number | Title | Issue Date |
| 7228948 | Hydraulic suspension damper A hydraulic damper including a tube filled with working liquid which contains a slidable piston assembly attached to a piston rod. The piston assembly includes a piston having a compression valve arrangement to control the flow of working liquid passing through the ... | 06/12/2007 |
| 7182187 | Damper and vibration damping structure using the same A damper includes a hollow outer elongated body formed of a cylindrical member; a hollow inner elongated body similarly formed of a cylindrical member; a viscous body disposed in a cylindrical gap between an inner surface of the elongated body and an outer surface o... | 02/27/2007 |
| 7175008 | High-resistance decelerating device, particularly for insertion between two members in relative motion A decelerating device includes a casing defining internally a chamber filled with a viscous fluid, e.g. silicone oil; and a movable member fitted in fluidtight manner to the casing, so as to be housed at least partly inside the chamber and immersed in the viscous fl... | 02/13/2007 |
| 7070028 | Frequency dependent damper A gas shock absorber has a pressure tube which defines a working chamber. A piston divides the working chamber into an upper working chamber and a lower working chamber. A flow path extends through the piston to provide fluid communication between the upper and lowe... | 07/04/2006 |
| 6951267 | Damping force-variable shock absorber A damping force-variable shock absorber comprises a cylinder and a piston rod inside the cylinder. The piston rod is linearly moveable relative to the cylinder. An orifice valve plate having a plurality of valve holes is configured and mounted so as to form a circle... | 10/04/2005 |
| 6481546 | Magneto-rheological damping valve using laminated construction A magneto-rheological damping device comprises a core element capable of acting as a magnetic circuit which carries a magnetic flux, and a case element surrounding a portion of the core element. A passage exists between the case element and core element, ... | 11/19/2002 |
| 6220409 | Stroke dependent bypass A shock absorber has a pressure tube with a piston assembly slidably disposed within the pressure tube and attached to a piston rod. The piston assembly divides the pressure tube into an upper working chamber and a lower working chamber. The piston assemb... | 04/24/2001 |
| 5921360 | Digressive damper valve A digressive valve for a vehicle damper provides rebound performance with a relatively high damping rate for low velocity inputs and a relatively low flow restriction operation for high velocity inputs so that a relatively firm ride with reduced impact ha... | 07/13/1999 |
| 5842688 | Arrangement for damping through wire-drawing of a fluid and suspension system in particular of an automotive vehicle fitted with such a damping arrangement An arrangement for damping movement of a mass with respect to a support to which the mass is connected by a suspension device. The suspension device is provided with one or more springs and a hydraulic damping system through which a hydraulic fluid flows.... | 12/01/1998 |
| 5398786 | Fluid operated damper unit According to an illustrative example of the invention a fluid damper comprises a cylinder and a piston rod axially movable through one axial end of the cylinder. The piston rod is provided with two damping pistons within a cavity inside the cylinder. The ... | 03/21/1995 |
| 5228640 | Device for the elastic coupling between two parts, and aircraft with rotating wings comprising said device A device for elastic coupling between two parts, especially the principal transmission box and the fuselage of an aircraft with rotating wings, such as a helicopter, includes first and second inner and outer tubular bodies, and an elastic connection, hous... | 07/20/1993 |
| 5163706 | Electro-hydraulic pressure regulating valve assembly for a hydraulic damper A pressure regulating valve assembly includes a valve body mounting an electric solenoid assembly. The solenoid assembly controls the fluid pressure in a chamber defined in the valve body. Fluid in the chamber is biased against a deflectable disc which co... | 11/17/1992 |
| 5050849 | Vibration buffer A hydraulic vibration buffer for connection between two members with a case coupled with the first member, a piston rod with its top end coupled with a second member, a piston coupled with a base end of the piston rod and housed within the cylinder case s... | 09/24/1991 |
| 4697824 | Damping force control device for vehicle damper A damper is interposed between a body of a vehicle and a wheel support arm adapted to support a wheel and mounted swingingly on the body, and a control device is operatively connected to a damping force generating device mounted to the damper for controll... | 10/06/1987 |
| 4660686 | Adjustable shock absorber, especially for motor vehicles An adjustable shock absorber for motor vehicles has a cylinder containing damping fluid, a piston rod arranged to be axially displaceable in the cylinder, and a damping piston secured to the inner end of the piston rod. The damping piston divides the cyli... | 04/28/1987 |
| 4529180 | Thermally efficient shock absorber A thermally efficient shock absorber comprising a strut housing having an open end and a closed end, a piston including a piston housing and a piston head slideable in the strut housing, and a preselected volume of fluid and gas located in the strut and p... | 07/16/1985 |
| 4465299 | Vehicle suspension with load-controlled damping and load-controlled damper A vehicle suspension system with load-controlled damping for a vehicle having a leveling valve actuated by changes in the distance between the axles and the frame and connected to air springs and to a damper to provide load control of the damper. The damp... | 08/14/1984 |
| 4453638 | Hydraulic shock absorber A hydraulic shock absorber comprising a piston and hollow piston rod slidable within a cylinder, and a plug assembly including a spool valve for metering fluid into the piston rod when an impact force forces the piston into the cylinder. A coil spring nor... | 06/12/1984 |
| 4445671 | Gas spring including hydraulic locking means A gas spring for height adjustment of drawing-tables or the like includes an arrangement for hydraulically locking the gas spring against sudden collapse due to overloading or loss of internal gas pressure. The hydraulic locking mechanism includes a press... | 05/01/1984 |
| 4023657 | Device for damping a perpendicularly oscillating mass A device for damping a perpendicularly oscillating primary mass comprising a perpendicularly oscillatory reference mass supported by a piston in a pressure fluid chamber of an adjusting member. The pressure in the fluid chamber compensates for the weight ... | 05/17/1977 |
