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Class 73/522 - Dampening means


Subclass of Class 73 - Measuring and testing
Definition: Apparatus wherein fluid serves to suppress vibration or
No. of patents: 8
Last issue date: 10/20/1998


NumberTitleIssue Date
5824901Capacitive sensor for measuring accelerations and inclinations
A capacitive sensor for measuring accelerations and inclinations with respect to the gravitational field. The capacitive sensor has at least one stator electrode and one displacement electrode, in which the position of the displacement electrode can chang...
10/20/1998
5587531Semiconductor strain gauge acceleration sensor
An acceleration sensor includes an acceleration detecting element (15) for detecting an acceleration in a sealed case (11), silicon oil (16) with which the case (11) is filled for giving damping to the acceleration detecting element (15), and a deformable...
12/24/1996
5567878Semiconductor acceleration sensor
A cantilever semiconductor acceleration sensor element is supported by a pedestal fixed to a base. The base is sealed with a cap, forming an airtight space between the cap and the base that is filled with silicone oil. A central portion of the cap is defo...
10/22/1996
5277064Thick film accelerometer
An accelerometer is provided which is suitably rugged for use in on-board automotive safety control and navigational systems. The preferred thick film accelerometer is formed from an alumina substrate having an integrally formed U-shaped flexure member wh...
01/11/1994
4901571Acceleration pickup
An acceleration pickup has a housing of a diamagnetic or paramagnetic material enclosing a ferromagnetic ball acting as seismic mass. The ball is held in a starting position on the bottom of the housing by means of a magnetic field generated by a permanen...
02/20/1990
4602510Fluidic rotational speed sensor
A device for measuring the rotational speed of a rotating object in which a tream of fluid from a back pressure sensor is directed at a chopper wheel attached to the rotating object. The output of the back pressure sensor varies as the chopper wheel rotate...
07/29/1986
4498340Damping mechanism for gyroscopes
A damping mechanism for a two-degree-of-freedom rate gyroscope of the flexible disk type includes a pair of auxiliary disks, one mounted closely adjacent each side of the rotor disk to provide squeeze film type damping of any axial vibrations of the rotor...
02/12/1985
4019389Viscous damper
A viscous damper for damping linear vibrations along an axis to isolate a precision instrument such as a vibrating beam accelerometer having a divided sealed cavity containing a damping fluid with a diaphragm disposed on each side of the division and a na...
04/26/1977
 
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