A damped armrest including an armrest frame defining a bore and a fixed mandrel defining an axis about which the frame rotates. A reservoir is formed by the bore and the mandrel. Vanes on the mandrel project into the reservoir. The reservoir is filled with damping media for controlling rotation of the frame about the mandrel.

A valve includes a device for shutting off a valve interior. The shutoff device is positioned by a piston which is guided in a cylinder and forms a first chamber and a second chamber in the cylinder. The second chamber communicates with the valve interior through a throttle path, so that the shutoff device is movable in a damped manner in both closing and opening directions.

To slow down the action of a solenoid for use in moving delicate mechanisms, or other time-delay uses, the solenoid frame is provided with a closed end, vented only by a restricted orifice, and the solenoid plunger is fitted with a pressure seal to ensure venting of trapped air only through the restricted orifice.

A combined spring and damper comprises a plurality of spring elements (1), each of zig-zag form, disposed in radial planes with respect to a common axis. Also situated on the axis is a mass (7) of resilient material. When the spring is compressed along the axis the inward contraction of inner reflex portions (3) of the spring elements is resisted by the mass of resilient material, and the resulting axial movement of the radially inner reflex portions is resisted by contact with the mass of resil...

A damping spring including a casing defining an interior space filled with a damping medium and individually stacked dished plates. The plates are subdivided into an even number of sectors and are supported along their edges. A slide valve cooperates with at least one aperture in the casing to vary the cross section thereof so as to allow variation of the damping characteristics of the spring.

A bearing assembly, in which the bearing is located between the fixed and rotatable members in such a manner that it can adjust to a certain extent to radial movement of the movable member, is damped against vibration or shock by housing a seismic mass in the bearing with limited freedom of radial movement.

A damped geophone which includes a closed housing wherein a magnet supported between a pair of pole pieces is axially supported on an upstanding post connected with a bottom closure member and defines an air gap between the magnet and the surrounding housing and a coil form having a coil wound thereon is placed in the air gap. The coil form is free to move relative to the magnet and housing. It is laterally centered at a quiescent position by upper and lower spiders formed of spring material. It...

The invention relates to a brake rotor having improved damping characteristics and a method for producing the same. A surface of the brake rotor is EDG machined, also known as EDM machined, for improving the damping characteristics of the rotor. The decay rate of the brake rotor is increased and the Q factor of the brake rotor is reduced. The portion of the brake rotor which is EDG machined is formed of an electrically conductive material, preferably a ferrous material, more preferably a cast ir...

A damped sleeve adapted to receive and protect elongated substrates is disclosed. The sleeve has a flexible, resilient support layer corrugated for added radial stiffness and bending flexibility. The support layer surrounds and defines an interior space for receiving the substrates. A longitudinal slit defined by facing edges in the support layer provides access to the interior space. A damping layer of non-woven felt covers the outer surface of the support layer and is attached to it along the ...

A damped micromechanical device comprising a substrate, a movable structure overlying the substrate and a flexural member having a first end portion coupled to the substrate and a second end portion coupled to the movable structure. The movable structure is movable at a resonant frequency between first and second positions relative to the substrate. A damping material is adhered to at least a portion of the flexural member for damping the movement of the movable structure at the resonant frequen...