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5174552 Fluid mount with active vibration control  
A fluid mount with the capability of actively controlling the amount of vibrational energy transmitted thereacross. An actuator is provided in series or in parallel with the inertia track...
5163660 Sensor arrangement of vibration isolation apparatus  
According to the present invention, a sensor arrangement of a vibration isolation apparatus has a generally annular sensor plate with a plurality of strain sensing elements mounted on a radially...
5160121 Shock absorbing compressional mounting apparatus  
A variable shock absorbing compressional mounting apparatus. The apparatus includes a housing assembly having first and second housing portions, with the second housing portion being operable to...
5156380 Damping support for mounting an engine to a frame  
A mounting to hang an engine to a frame, adapted to insulate the frame from predetermined high-frequency and small-amplitude vibrations. The mounting comprises an envelope, a cover in the form of...
5149065 Foam cushion with labyrinthine side seams  
New and improved foam cushions for packaging purposes of the type including a cushion envelope partially filled with an expandable cushioning foam material are provided. The cushion envelope...
5149066 Isolator with improved symmetrical response to shock and vibration forces  
An isolator with improved uniform spring characteristic response resists transmission of shock and vibration forces between structures, and includes a plurality of arched, individual, flexural...
5145155 Method of manufacturing fluid-filled elastic mount having fluid injection hole for filling pressure-receiving and equilibrium chambers  
A method of manufacturing a fluid-filled elastic mount which includes an electric body flexibly connecting an inner and an outer sleeve, means for defining a pressure-receiving chamber and an...
5142941 Wiper system  
A wiper system for motor vehicles is described in which a pivot-shaft assembly is fixed to the one end of a pipe-like carrier held by way of its other end on a stud of a motor carrier member stable...
5135251 Active oscillation damping sensor for measuring relative velocity between body and axle  
Active and adaptable sensor for a dashpot for measuring the difference between the speed of the body of a motor vehicle and that of its axle. A piston rod travels through the sensor and induces a...
5127622 Fluidic vibration cancellation mount and method  
A vibration cancellation mount for use in a vibration cancellation system is provided that includes a fluidic driver providing a modulated air stream to an elastomeric air spring. The pressure of...
5121905 Resilient mount  
The present invention relates to a fail safe resilient mount which includes an outer dome shaped member having an aperture centered about an apex thereof and oppositely diposed ears extending...
RE33937 Active vibration isolation system  
An active force actuated vibration isolation system uses a velocity sensor in the form of a velocity-sensitive geophone to sense payload velocity and modifies the geophone signal to control the...
5110097 Elastic mounting, particularly for a vehicle engine  
Such a mount comprises a set of thin parallel and spaced plates, of flexible material, extending generally transversely to the vertical direction, the ends of these plates being supported on the...
5083756 Load support vibration isolation mount  
A load support vibration isolation mount comprises first and second parts movable relative to one another with a gas cushion and a high pressure hydraulic fluid disposed in series between the parts...
5071108 Pneumatic vibration isolation systems with automatic piston centering  
A pneumatic vibration isolation system, wherein an operating piston is displaced by vibrations relative to a chamber containing compressed gas, and automatically centers that operating piston for...
5052529 Active control of vibration  
A vibration mount by which a subject body (10) is mounted on a support (12) by means of an intermediate body (16), and constrictive actuators (22, 24) each of whose dimensions can be changed in a...
5052663 Fixation element and method for its production  
A fixation element and a method for producing such fixation elements for a vibration-insulating assembly of a first component 20 upon a second component 19 is disclosed. The fixation element...
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...
5042784 Damping support structure  
A damping support structure for preventing vibrations of an apparatus table supporting an apparatus for manufacturing ultra-high precision devices such as semiconductors and printed circuit boards....
5020644 Auxiliary mass damper for slender flexible element subject to vibration  
Structures subject to seismic or other vibrations, such as structurally flexible elements of electrical and mechanical power plants, are effectively damped to reduce stresses resulting from such...
5020781 Controls for a semiactive chassis  
The invention concerns controls for a semiactive chassis on a motor vehicle that is provided with variable or power-regulated vibration attenuators. The results of various sensor measurements are...
5017328 Vibration dampening motor mount  
A mounting arrangement that is particularly well-suited for use in environments wherein extremely high loads are encountered. Particularly, a motor mount for use with water craft is disclosed. The...
5016862 Vibration isolation arrangement  
A vibration isolation arrangement, for example for supporting a stretcher in an ambulance, comprises a lever (16) which extends between a base structure (6) and a support frame (4). The lever (16)...
4982937 Gas-operated spring  
A gas-operated spring for the mutual support of two oscillating elements moving relative to one another, for which sensor-controlled (9, 10) first and second devices (1, 2) are provided, which...
4981215 Flexible device for packing or support  
An elastic packing or support device that can be used especially for the elastic support and/or packing of objects during transportation. The device includes at least one elastic element composed...
4974794 Elastic strut having an integrated hydromechanical resonator in particular for the suspension of a transmission box on a rotor aircraft and a suspension device using such a strut  
In this elastic strut incorporating a hydromechanical resonator having a weight/spring system of the type providing a hydraulic amplification of the displacement of the beating weight (7), the...
4972930 Dynamically adjustable rotary unbalance shaker  
A shaker assembly for reducing vibrations in a vibrating structure includes an eccentric mass which is driven at a selected frequency and which drives a shaker assembly. The resonant frequency of...
4969624 Suspension of a vehicle seat  
A suspension of a vehicle seat comprises a bearing plate to which the vehicle seat is secured, a first base mounted on the floor of the vehicle cabin, and mechanical resilient elements provided...
4953658 Seismic isolator  
A seismic isolator for absorbing earthquake vibrations is provided which comprises a laminated member arranged to be interposed between a structure and a foundation, the laminated member comprising...
4951948 Shock absorbing bat  
A shock absorbing bat comprises a long cylindrical central handle and a main body, both being connected together and held firmly by means of a retaining collar and an elastic ring. An elastic...
4950966 Adaptive vibration canceller  
A method and apparatus for cancelling vibrations caused by periodic pulsating forces acting on a rotating shaft which are synchronous with the shaft rotation. An adaptive algorithm is implemented...
4946129 Equipment housing assemblies  
An equipment housing assembly includes: an equipment housing (11); a rack (13) for supporting the housing (11); and two spaced hold-down devices (17a, 17b) each comprising two co-operating...
4926985 Oscillating apparatus for damping vibration  
An oscillating apparatus comprises a cylinder, a piston reciprocatingly movably fitted in the cylinder, shaft members connected to the piston and extending out of the cylinder. The cylinder, piston...
4923057 Electrorheological fluid composite structures  
Controllable electrorheological fluid composite structure elements incorporate electrorheological fluids as a structural component between opposing fluid containment layers to form at least a...
4893796 Pendulum vibration isolator and damper  
A vibration isolator comprises a helical spring support between a base 3 and a cap 8 from which depends a pendulum rod 14 carrying at its lower end a ball joint 16. A pneumatic damper in the form...
4887699 Vibration attenuating method utilizing continuously variable semiactive damper  
Operation of a continuously variable semiactive damper of the system is modified so as to reduce generation in the system of undesirable shocks and noise. The modifications include delaying some or...
4880214 Cushioning and protecting members  
A cushioning and protecting member for cushioning and protecting articles packed in a case is provided that includes a plurality of cushions having a variety of shapes and which can be compressed...
4872649 Liquid type mass damper with elongated discharge tube  
A new mass damper that avoids the formation of a higher-order resonance by utilizing the inertial resistance of a flowing liquid is disclosed. This damper solves the problem of an additional new...
4869474 Vehicle engine suspension systems  
A vehicle engine suspension system in which, in order to reduce `shake` electrically actuated engine mounts are provided, power being supplied to the engine mounts by a control system responsive to...
4865466 Interlocking cylinder compliant hydrodynamic gas bearing  
A spring support system for a compliant hydrodynamic gas lubricated bearing comprises a plurality of cylindrical spring elements that are retained by floating control rods in circumferential and...
4863139 Holding device for a hollow-shaft incremental encoder or the like  
A device for holding at least one of a rotational speed and a rotational angle encoder rigidly attached to a drive shaft includes a holding frame for the encoder, a crossbar spaced from said...
4858738 System of auxiliary mass dampers to restrain the response of slender elastic structures to vibrations such as from earthquakes  
Structures subject to seismic or other vibrations, such as structurally flexible elements of electrical and mechanical power plants, are effectively damped to reduce stresses resulting from such...
4854562 Elastic mounting with rigidity blocked in one direction by the tension of a cable embedded in elastomer  
An elastic mounting molded from an elastomer compound bonded to two fastening frames, in particular for antivibration isolation of vehicle suspension elements, where the deformation rigidity is...
4848525 Dual mode vibration isolator  
A dual mode vibration isolator for reducing transmission of vibrations between a forward body and an aft body includes a mounting member positioned between the forward and aft bodies, a plurality...
4842106 Rate controllable damping mechanism  
A rate controllable damping mechanism is disclosed. The mechanism includes a chamber disposed within a housing; an element mounted for movement within the chamber; a damping material, preferably a...
4830348 Noise suppressing device for coil springs  
A noise suppressing device for a coil spring, and the combination of a spring equipped with such a device, in which the noise suppressing device takes the form of at least one spring metal sleeve...
4828236 Damper device for a door having dual-direction operating biasing spring means  
A damper device comprises damping structure and a spring device and is advantageously used for a door swingably supported by a shaft to be opened and shut between a totally shut position and a...
4825984 Visco-elastic couple for magnet actuator  
A voice-coil linear actuator is embodied wherein the coil-driving structure is coupled to the driven structure (carriage) via a visco-elastic couple member (e.g., elastomeric bonding tape) that...
4825983 Inertia damper  
An inertia damper having a mounting base to be mounted on a rotary shaft and an inertia weight component which is coupled to the mounting base through a vibration absorbing layer, the vibration...
4817768 Beam vibration damping system  
Large space structures are generally constructed of very stiff beams with little structural damping. Periodic activities such as instrument pointing can cause small beam deformations which can...