Class 73/514.14 - Specific type of dampener (e.g., eddy current dampener)

Subclass of Class 73 - Measuring and testing
Definition: Subject matter of ... comprising specified means for diminishing
No. of patents: 35
Last issue date: 11/27/2007

Number	Title	Issue Date
7301721	Falling sensor and the information processing device making use of it A falling sensor is provided, which detects a falling of a magnetic disk drive or an information processing device installed with said magnetic disk drive and which is effective for avoiding physical damages of magnetic heads and magnetic disk media. The magnetic di...	11/27/2007
7274002	Heating element induction of time-varying thermal gradient in elongated beam to cause one or more elongated beam oscillations One or more heating elements comprise a heating element. One or more elongated beams comprise an elongated beam. The heating element is coupled with the elongated beam and induces a time-varying thermal gradient in the elongated beam to cause one or more oscillation...	09/25/2007
7221495	Thin film precursor stack for MEMS manufacturing This invention provides a precursor film stack for use in the production of MEMS devices. The precursor film stack comprises a carrier substrate, a first layer formed on the carrier substrate, a second layer of an insulator material formed on the first layer, and a ...	05/22/2007
7219549	Accelerometer with cantilever and magnetic field detector An accelerometer for measuring the displacement of a magnet body using magnetic detecting elements is provided, the accelerometer having superior measurement accuracy by suppressing influence of a peripheral magnetic field. The accelerometer has detecting units each...	05/22/2007
7164520	Packaging for an interferometric modulator A package is made of a transparent substrate having an interferometric modulator and a back plate. A non-hermetic seal joins the back plate to the substrate to form a package, and a desiccant resides inside the package. A method of packaging an interferometric modul...	01/16/2007
7146856	Dynamically balanced capacitive pick-off accelerometer A Micro Electro-Mechanical System (MEMS) acceleration sensing device formed of a silicon substrate having a substantially planar surface; a pendulous sensing element having a substantially planar surface suspended in close proximity to the substrate planar surface; ...	12/12/2006
7049505	Wire member and method of fabricating same A wire member adapted to be used in a detection coil of an NMR spectrometer's probe. The wire member has a sleeve made of a copper tube having a high electrical conductivity, strands made of platinum, and a thin film of gold or rhodium formed on the surface of the s...	05/23/2006
7024934	Vibrating beam accelerometer Microelectromechanical system (MEMS) integrated micro devices and acceleration sensor devices formed of first and second silicon wafers that are permanently joined together in a composite silicon wafer having an array of first complete stand-alone three-dimensional ...	04/11/2006
7019231	Inertial sensor An inertial sensor includes a sensing portion having a weight supported by beams, the weight being a movable portion, and a weight stopper that limits a movable range of the weight, the weight stopper being arranged in a vicinity of the weight with a given clearance...	03/28/2006
6995939	Falling sensor and the information processing device making use of it A falling sensor is provided, which detects a falling of a magnetic disk drive or an information processing device installed with the magnetic disk drive and which is effective for avoiding physical damage of magnetic heads and magnetic disk media. The magnetic disk...	02/07/2006
6923062	Sensor For a sensor whose sensor structure is implemented in a micromechanical structural component and which has parts which are movable in relation to the stationary substrate of the structural component, and which also includes an unsupported a seismic mass, a spring sy...	08/02/2005
6679122	Pressure gauge having a dampener mechanism with attachable housing A dampening apparatus for a pressure gauge in which a housing secured to the amplifier of the pressure gauge encircles the pointer shaft in a close but loose fit relation so as to define a controlled clearance packed with a high viscosity dampening agent ...	01/20/2004
5656846	Semiconductor acceleration sensor and method of fabrication thereof An acceleration sensor is provided with damping means on an upper surface and/or an lower surface of a movable portion of a sensor body and/or opposite regions surrounded by the movable portion and a rim of the sensor body in order to provide damping of a...	08/12/1997
5567878	Semiconductor 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
5551293	Micro-machined accelerometer array with shield plane An accelerative force may be measured using a plurality of deflection elements (102), each deflection element (102) comprising an inertial mass (104), and at least one hinge (104) supporting the inertial mass (104) in a normal position. Application of a f...	09/03/1996
5379640	Semiconductor acceleration detecting apparatus A semiconductor acceleration detecting device has an acceleration detecting beam which is cantilevered from lead pins rather than by a base member, thus attaining a direct connection between the lead pins and the acceleration detecting beam without any in...	01/10/1995
5277064	Thick 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
5165279	Monolithic accelerometer with flexurally mounted force transducer An accelerometer comprising a monolithic crystalline substrate, the substrate comprising a support, a proof mass, and a force transducer. The proof mass is connected to the support by one or more proof mass flexures that permit the proof mass to rotate wi...	11/24/1992
5149925	Quick-response accelerometer An acceleration sensor comprises a tube formed of an electrically-conductive, nonmagnetic material; an annular magnetically-permeable element, such as an iron washer, encircling a longitudinal portion of the tube; a magnetic sensing mass in the tube ...	09/22/1992
5058960	Pendulum-type accellerometer for electrically-actuated braking systems A freely-flexing cantilever-type inertial sensor is suspended from one end so that its other end may move in response to inertial forces, for example, as a result of braking in a towing vehicle. The pendulum blade is secured to a rigid support structure i...	10/22/1991
5036705	Accelerometer damped with self contained viscous material A damping arrangement for a deflectable beam accelerometer where the deflectable end of the beam is spaced from a stationary member. A drop of self contained viscous material extends between the deflectable end and the stationary member to dampen movement...	08/06/1991
5027657	Acceleration sensor with cantilevered bending beam An acceleration sensor essentially consists of a cantilevered laterally bending beam arranged in a housing. Because of its mass inertia the bending beam is deflectable relative to the sensor housing in the plane of the acceleration to be measured. The ben...	07/02/1991
4901571	Acceleration 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
4825697	Acceleration sensor The acceleration sensor consists substantially of a leaf spring (12) with an eddy current disk (13), which is arranged at its free end as an inertia mass, and an eddy current brake with magnets which are polarized in opposite directions (16, 17), and a fl...	05/02/1989
4821218	Method and apparatus for determining at least one characteristic value of movement of a body With the apparatus of the invention, any acceleration/deceleration in the direction of movement is sensed by a pendulum. Electrical signals derived therefrom are used for solving the differential equation of oscillation of the pendulum for determining the...	04/11/1989
4726627	Deceleration sensor for an electric brake controller The present invention relates to a self-contained electric brake controller for energizing electrically operated brakes in a towed vehicle in response to a demand by a driver in a towing vehicle. The controller includes a unique deceleration sensing unit ...	02/23/1988
4526036	Cadence meter A cadence meter senses acceleration pulses of a pedalled vehicle resulting from individual pedal strokes and produces an indication of the timing or frequency of pedalling....	07/02/1985
4422330	Low susceptibility proof mass for a single axis drag compensation system A satellite single axis drag compensation system improves stability and ects damping of movements of a cylindrical proof mass by providing an elongated, perpendicularly magnetized permanent magnet in the core of a current carrying rod that extends coaxia...	12/27/1983
4311051	Acceleration detector for use as a decelerometer for the control of electrically operated axle brakes The invention relates to an acceleration detector for use as a decelerometer for controlling an electrically operated axle brake, particularly for a towed vehicle. The acceleration detector comprises a movable member which is capable of moving against the...	01/19/1982
4298777	Distress gas generating signal balloon apparatus A crash force sensor is disclosed which may be used to activate emergency location systems such as a transmitter or an inflatable aerial tethered balloon. The crash force sensor comprises a casing and a moveable seismic mass held within the casing. A plur...	11/03/1981
4245510	Portable accelerometer A portable accelerometer unit is described for measuring deviations or excursions from a datum due to an applied load or force. The portable accelerometer unit includes an accelerometer device mounted by suspension means in a housing, and is operable to g...	01/20/1981
4226120	Analog accelerometer The present accelerometer has an inertia mass and a measuring device for suring a force acting on the inertia mass. The measuring device compares the intensity of light emanating from at least one optical fiber light source, with the light intensity ente...	10/07/1980
4156366	Accelerometer An accelerometer having an electromagnetic spring for restraint of an axially movable accelerator mass. The spring comprises at least one magnetic field transverse in direction to that of the mass and at least one conductor in the field, carrying current,...	05/29/1979
4104920	Piezoelectric damping mechanism A damping mechanism suitable for use with a vibrating beam accelerometer comprising a piezoelectric block mounted between the vibrating beam force transducer and the pendulum of the instrument. The proof mass, or pendulum, is mounted for pendulous motion ...	08/08/1978
3974504	Peak accelerograph A three-axis instrument for recording peak accelerations in earthquakes and like kinds of shocks. Recording is by scratches made by hard styli on small metal record plates. No power source and no maintenance are required. The seismic recording elements ha...	08/10/1976

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Class 73/514.14 - Specific type of dampener (e.g., eddy current dampener)