Abstract: An adjustable stand with a telescopic stem comprises a locking device for fixing the stem elements to one another firmly, the locking device including a collar which is connected to the first stem element and is automatically clamped onto the second element as a result of the load bearing on the second stem element.

Abstract: In a hydraulic mount the use of multiple primary orifices with unequal area reduces the effects of rapid transitions in dynamic rigidity and the amplitude of impulsive vibration generated thereby. This invention's reduced impulsive vibration has lead to the substantial elimination of mode transition related noise in associated vehicle structures in the 200 Hz to 500 Hz range.

Abstract: The invention relates to a hydraulic vibration-damping mount including a first rigid reinforcing member (1) and a second rigid reinforcing member (2), an elastomeric body (3) which includes, on the one hand, a thick wall (4) joining the two rigid reinforcing members to one another and partially delimiting a working chamber (A), and, on the other hand, a thin wall (5) which partially delimits a compensation chamber (B) connected to the working chamber by a narrow duct (C), the two chambers and the narrow duct being filled with a liquid, the second reinforcing member being a plate one face of which is secured in leaktight fashion to the elastomeric body in order to delimit, together with the latter, the two chambers and the narrow duct, the thin wall substantially exhibiting the shape of a bell only the edge (5.sub.1) of which is secured to the second reinforcing member.

Abstract: A hydraulically controlled engine mounting device for mounting an engine to a body of a vehicle, includes a plurality of hydraulic pressure chambers controlled by a single solenoid valve for effectively reducing vibrations at most frequency vibrations. More particularly, the invention includes first and second hydraulic pressure rooms divided by a partition and communicating with each other by a passageway to dampen vibration of an engine with a fluid friction. A third hydraulic pressure room is formed near the first hydraulic pressure room, the third hydraulic pressure room communicating with the first hydraulic pressure room by a passage-aperture having a solenoid valve.

Abstract: A gas spring including a housing, and a rolling convolution type flexible gas seal supporting a piston within the housing. The piston has a chamber and a resilient vibration damper unit resides within the chamber for reducing the horizontal stiffness of the gas spring.

Abstract: A shock absorbing device provided with a damping plate damper having a viscosity damper includes: a case body comprising an upper flange, a body portion, and a lower flange; a collared resilient member provided with a body portion and a collar portion, an outer surface of the body portion and an undersurface of the collar portion being connected to the case body; a center shaft connected to the central portion of the collared resilient member; a damping plate fixed to the bottom end portion of the center shaft; and a damper case fixed to the bottom end of the case body and filled with a viscous substance. An operator cabin of a construction machine is resiliently supported to the vehicle body through the shock absorbing device.

Abstract: A vibration isolator includes a substantially sealed space within a housing 4 forming a liquid chamber by partitioning the sealed space with a diaphragm 5. The liquid chamber is further partitioned into first and second chambers 7 and 8 by a rubber partition wall 6. An orifice passage 9 is arranged to communicate between these two chambers 7 and 8. The rubber partition wall 6 is provided at its intermediate portion with a membrane portion 11, a part of which is adapted to serve as a stopper portion 12. When the membrane portion 11 is bent and deformed downwardly, the stopper portion 12 is pushed, at its front end, on a partition wall supporting member 14 for deformation. The repulsion force of the stopper portion 12 by the deformation varies non-linearly in response to the deformation of the membrane portion 11 and as a result, the spring characteristic of the membrane portion 11 also becomes non-linear.

Abstract: An embedded unit for a concrete foundation is used for the fixing of elastic machine bearing elements in the concrete foundation. The embedded unit is constructed from a plurality of rods and metal sheets which are fitted together while forming damping joints. This type of an embedded unit dampens the machine vibrations entering into the foundation, may have a high impedance, and can be sufficiently anchored in concrete material.

Abstract: A single-thrust beating for a shock absorber with a columnar journal projecting in the damping direction and which is sealingly surrounded by a flexible, annular-shaped membrane, whereby the membrane is secured in its rim area, which projects radially to the outside, to a supporting bearing and separates two liquid-filled working chambers from each other. The working chambers are defined in the area of the extremities which mutually oppose each other by hollow-conical bearing springs made of a rubber elastic material. The bearing springs are supported in their base area on the supporting bearing and are braced against one another by means of the journal by way of their tips which are turned away from each other.

Abstract: A friction damper that is able to reduce vibrational motions in two dimensions, can be re-used, is easily adjustable and has an extremely smooth transition between sticking and sliding in particular. The friction damper features a stack of at least two friction discs and a prestressing device for this stack. Touching each other at curved contact surfaces, these friction discs are alternately joined with the first and second of two friction damper connections, respectively. The curved contact surfaces can be provided in a simple manner either by an alternate arrangement of lense-shaped and plane friction rings or by alternate arrangement of plane friction rings with convex inserts and plane friction rings.

Abstract: A vibration isolating apparatus in which a vibrating body, which is disposed within a pressure-receiving liquid chamber and is connected to a mounting member such that a gap is formed between an inner wall surface of the pressure-receiving liquid chamber and the vibrating body, is disposed. An elongated limiting passage is formed in the vibrating body so as to penetrate therethrough. The limiting passage communicates the pressure-receiving liquid chamber and an auxiliary liquid chamber provided within the mounting member. When there is low-frequency vibration, there is liquid-column resonance of a liquid within the limiting passage. However, because the limiting passage is elongated, the liquid-column resonance of the liquid therein is large, and a high loss factor is obtained. Therefore, the low-frequency vibration is reliably absorbed. When there is high-frequency vibration, there is liquid-column resonance of the liquid in a vicinity of the gap.

Abstract: A telescopic tube mounting device, which includes an outer tube having a coupling at the top, an inner tube made to slide in and out of the outer tube and locked at the desired elevation by a lock screw on the coupling, a C-shaped locating ring fastened to the bottom end of the inner tube to prohibit disconnection of the inner tube from the coupling, a stopper sealed in the bottom end of the inner tube and having a longitudinal through hole with a tapered top orifice for passing air in and out of the inner tube to buffer the falling speed of the inner tube when the inner tube is collapsed.

Abstract: A chiropractic table for the treatment of the muscular and skeletal cervical, thoracic, and lumbar areas of the patient's spine. The chiropractic table includes a base frame having an upright support with a table top disposed above the base frame and coupled to the upright support such that different segments of the table top may be articulated to assist in the treatment of the patient. A drive assembly is provided for reciprocating at least a portion of the chiropractic table. The drive assembly is isolated from the base frame and table top by a plurality of isolators, which attenuate the noise and vibration produced by the drive assembly while reciprocating the table top.

Abstract: A fluid mount (20) provides a flexible connection and fluid effects such as damping and/or fluid inertia for a supported member (22) attached to a supporting member (24) in a singular and unitary package. The fluid mount (20) includes a beam (34) and a laminated elastomer and shim construction bonded thereto, defining variable volume fluid chambers (44, 46, 48, 50) and interconnecting fluid passageways (52, 54). Fluid effects are provided in both a radial translational mode (loading at R) and a rotational mode (loading at T) to suppress vibrations of the supported member (22).

Abstract: A hydraulic antivibration device comprises, between its two chambers, two passages (8, 10) connected in parallel, and it also comprises a rotary shutter (11) having the same axis (X) as the device and suitable for opening or closing, at will, at least one of the two passages and also slots that put the chambers into communication with a decoupling shutter member. Angular displacement of the shutter is controlled by successively exciting two small antagonistic electromagnets (14, 15) housed in the outer portion of the intermediate partition (7) and suitable for attracting a ferromagnetic armature (16) of the shutter member, which armature is urged towards an intermediate position by a small spring (17).

Abstract: An engine mount comprises a relatively stiff elastomeric member having an interior defining a first chamber containing hydraulic liquid. The elastomeric member is attached both to the engine and to the vehicle body. A flexible wall defines a second chamber and the two chambers are connected by a restricted channel. Engine vibration is transmitted to the liquid in the first chamber via the elastomeric member, and damping takes place because of the resistance to the flow of liquid between the two chambers or because of oscillation of the mass of the liquid in the restricted channel. In addition, a flexible membrane is supported by the interior wall of the elastomeric member and urged against this wall by a leaf spring, and the air pressure between the interior wall of the elastomeric member and the membrane is variable.

Abstract: A suspension system for a component of an air conditioning system adapted for mounting the air conditioning system to a support surface. The suspension system is designed for use with an air conditioning system component that is mounted on spaced apart support rails. The suspension system is integrated into the support rail and eliminates the need for a self contained suspension system that must have specially designed mounting points for attachment to the support rails. The integrated design provides for resistance to lateral loads and facilitates the interchange and replacement of suspension system components. The suspension system comprises a spring for absorbing motion occurring between the air conditioning system component and the support surface. The spring has a first end and a second end, and defines a spring axis extending between the two ends. A receptacle is formed integral to a respective one of the support rails for supporting the first end of the spring.

Abstract: A vibration isolator includes: a housing which is filled with a fluid; an intermediate plate inserted in the housing for partitioning the interior of the housing into two liquid chambers, the intermediate plate having therein a cylinder and at least two passageways for allowing the two liquid chambers to communicate with each other, the cylinder being formed at a position midway in one of the passageways, and one of the liquid chambers being provided with an elastic wall to render the capacity of that liquid chamber variable; a piston capable of opening and closing one of the passageways as the piston moves in the cylinder; and a pressure changeover valve disposed outside the housing and capable of moving the piston by means of a change in pressure by applying a gas pressure to the piston.

Abstract: A variable friction force damper utilizes geometric variations in a sliding surface to vary the frictional force. In particular, variation in thickness of the member on which the sliding surface is formed produces a corresponding variation in the displacement of a compression spring. This variation in spring displacement produces a variation in the compression force exerted by the spring, i.e., the force with which the sliding member is pressed against the sliding surface. This in turn causes a variation in the frictional force which the sliding surface exerts on the sliding member. The result is a variable friction force damper having a variable damping capability which allows a controlled response at variable input levels.

Abstract: Methods and apparatus for isolating a load structure from vertical, horizontal and rotational vibrations of a supporting structure operate with the aid of displacement of a pneumatic fluid from and to a fluid chamber of a pneumatic vibration isolation system. A fluid-tight diaphragm extends from a circumferential edge of the fluid chamber into that fluid chamber, and has a circumferential compliance section inside that edge of the fluid chamber. The diaphragm is structured inside of that compliance section with alternate stiffened and reinforced diaphragm portions in the fluid chamber. The diaphragm and the fluid chamber are coupled between the supporting structure and the load structure. Vertical vibrations are damped by displacing pneumatic fluid from and to the fluid chamber with the fluid-tight diaphragm and horizontal and rotational vibrations are damped with the reinforced diaphragm portion in the fluid chamber.

Abstract: An anti-earthquake bearing apparatus for bearing the weight of a structure and reducing the vibration energy propagating to the structure by using bearing bodies disposed between the structure and a foundation or another structure has spherical bag-like bearing bodies serving as said bearing bodies formed by sealing a fluid, rubber-like solid or gas into bags constituted by a rubber-sheet material reinforced with fiber. Each bag-like bearing body is provided with charging/discharging ports. Recesses for preventing positional shift of said bag-like bearing bodies are formed on the bottom surface of the structure and on the upper surface of the foundation.

Abstract: A reduced horizontal stiffness vibration isolation system including a gas spring assembly with a load support interface portion and pivot device externally coupled to the gas spring assembly for allowing the gas spring assembly to pivot when either the load support interface portion or the pivot device is displaced to reduce the horizontal stiffness of the gas spring assembly.

Abstract: Apparatus is provided for isolating a sensor from a vibrating surface. The sensor has first and second spaced surfaces, a bore extending between the surfaces and a groove in the second surface. The apparatus includes a flanged sleeve adapted to extend through the bore to the vibrating surface. The sleeve is sufficiently long when extending through the bore to provide a first gap between the vibrating surface and the second surface of the sensor and sufficiently narrow when extending through the bore to provide a second gap between the sleeve and the sensor. The flange overlays the first surface of the sensor and the second gap. The apparatus also includes a bolt, which extends through the bore and into engagement with the vibrating surface, for attaching the sleeve to the vibrating surface. The apparatus also includes a first O-ring positioned between the first surface of the sensor and the sleeve flange and a second O-ring positioned in the groove of the second surface.

Abstract: A laminated structural component with superior resistance to flexural vibions is provided comprising two load-bearing layers and a viscoelastic damping layer sandwiched therebetween. Each of the load-bearing layers comprises an outer stiffness sublayer and an inner compliant sublayer, the compliant sublayer being positioned between the outer stiffness sublayer and the viscoelastic damping layer. The compliant sublayers have an extensional elastic modulus which is less than that of the stiffness sublayers, and greater than that of the viscoelastic damping layer. The laminated structural component experiences greater relative in-plane displacements between the load-bearing layers, and preserves transverse static stiffness.

Abstract: A device to control vertical vibration of a building caused by seismic disturbance. Air springs are positioned and secured between the building foundation and the building superstructure to attenuate vertical vibration of the building. Vertical support rails are secured to the foundation and/or to the building superstructure on opposite sides of, and adjacent to, the air springs. Horizontal connecting brackets are rigidly secured to the air springs and slidably secured to the adjacent rails. The brackets restrain horizontal deflection of the air springs without interfering with vertical reciprocation of the air springs.

Abstract: An improved vibration-free mounting system for sample cooling and low temperature and precision spectroscopy in which a closed-cycle helium refrigerator mechanism is to be mounted adjacent to a cold test chamber to enable efficient sample cooling. The system includes a first rigid support structure which receives and supports the refrigerator mechanism, and a second rigid support structure independently receiving and supporting a shroud having a cold test chamber for housing test samples on a sample holder. The second support structure is physically isolated from the first structure to prevent the transfer of vibrations therebetween, and the first and second structures are rigidly aligned with one another along a vertical axis. A gas envelope vibration isolating connection is provided between the refrigerator mechanism and the shroud for providing thermal communication for efficient sample cooling.

Abstract: A driving device for a rotational photoreceptor drum for use in an image forming machine, in which a rotational drive from a motor is supplied through a gear train to the axial shaft of the drum. The shaft is connected to the drum only at the side farthest from the gear train. An inertia member is provided within the drum. A rotational member having a rotational resistance is brought in contact with a non-image region of the drum.

Abstract: A damping apparatus including a piston having an axis therethrough. The piston includes a coaxial body portion and a first and second end extending oppositely therefrom along the axis. A rigid housing is coaxial with and surrounds the body of the piston for forming a rigid fluid volume between the piston and the rigid housing. The rigid fluid volume includes a first fluid chamber at a first end of the piston and a second fluid chamber at the second end of the piston. The first and second fluid chambers are connected by a damping path. The damping apparatus further includes a flexible housing coupled to the first and second ends of the piston and surrounding the rigid housing to form a fluid return of lower resistance to flow than the damping path between the rigid housing and the flexible housing and to allow movement of the rigid housing with respect to the piston.

Abstract: A free-floating damper system is provided wherein a damper housing is configured to receive a damper arm for free-floating movement in the x/y plane while restricting similar movement in the z plane. The damper arm is specially configured with first and second wear bushings positioned in a spring biased support to insure the frictional generation of coulomb dampening forces between the damper arm bushings and the damper housing. The damper can be fixedly mounted to a portion of a gas turbine engine such as the turbine frame and a portion of the damper arm can be attached through a mounting bracket to an accessory tube of the engine to dissipate vibrational forces which otherwise can damage the accessory tube.

Abstract: A system for protecting a building or piece of equipment against the forces generated by an earthquake is characterized by one or more approximately horizontal interfaces having sliding means associated therewith which permit relative horizontal multi-directional sliding movement between the superstructure and the supporting substructure. Calibrated control means such as low-friction sliding means and/or adjustable friction clamps may be utilized to adjust the threshold horizontal force required to cause such relative movement. Biasing means such as spring members may be utilized to urge the superstructure towards its pre-earthquake alignment relative to the substructure. Other advantages are provided by substrate grid means that permits the ready adjustment of the friction force exerted by the low-friction sliding means, and by the concave configuration of the sliding interfaces. A method of installing such a system is disclosed.

Abstract: The invention proposes a hydroelastic support (10) intended to be interposed between two assemblies to be suspended one with regards to the other, of the type comprising two armatures (12, 14) joined together by a block of elastomer material (16), a working chamber (26) and an expansion chamber (33), connected together by a communication passage (34), and of the type in which the working chamber (26) is delimited in part by a movable diaphragm (30) whose external face (42) comprises a push-rod (44) with which there cooperates a device of the connecting-rod (50) and crank (62, 66) type for driving the movable diaphragm, in which the small end (54) of the connecting-rod (50) is connected to the push-rod (44) and in which the shaft (66) for driving the crank (62) in rotation is mounted so as to turn in a bearing (70) fixed to one (12) of the two armatures.

Abstract: A vibration damper assembly is provided which includes a first attachment element or bracket for securing the damping mechanism to a first component, the vibrations of which are to be damped. A visco-elastic spacer is secured to the element or bracket at one end, and to a cylinder of a piston/cylinder assembly at its other end. A piston is slidably received in the cylinder with a predetermined clearance between the peripheral surface of the piston and the cylinder wall. A piston rod extending from the piston and the opposite end of the cylinder is received within a housing of a viscous damping device, the piston rod having a plurality of discs mounted thereon in predetermined, spaced relationship. An interior wall of the housing is also formed with a plurality of disc-like surfaces projecting toward the radial center of the housing, with aligned apertures therein to accommodate the piston rod.

Abstract: An optical table active leveling and vibration cancellation system is disclosed. The system includes an optical table with three active isolation devices connected to the optical table, and one sole pneumatic device, such that the table is supported on all four corners. Each of the isolation devices includes a pneumatic suspension device and an electromagnetic suspension device. The pneumatic suspension device includes a pressurized load chamber, a gimballed piston received in the pressurized load chamber and coupled to the walls of the pressurized load chamber by a thin walled diaphragm, and a support rod extending from the optical table to the floor level. The electromagnetic bearing suspension device includes a magnetic bearing rotor having two planar surfaces and a peripheral surface, and two magnetic bearing stators, the stators each defining a central aperture and each stator being in a spaced apart relationship from each of the rotor planar surfaces. The rotor is secured to the support rod.

Abstract: An elastic engine mount includes upper and lower bearing plates. A hollow-cylindrical spring block has top and bottom ends being clamped between the bearing plates and defining an inner space. A bolt protrudes into the inner space from the upper bearing plate. The spring block is formed of an elastomer and has conduits formed therein with at least one open end and a varying cross section. The conduits are disposed in a plurality of planes and are mutually parallel within each respective plane. A transverse elastic wall for additional damping is centrally fixed to the bolt for dividing the inner space into two liquid-filled chambers. The elastic wall has through openings formed therein and has an outer periphery clamped between the lower bearing plate and the bottom end of the spring block.

Abstract: The shock isolation system for CT equipment or the like employs a C-support holding isolation unit on either side of a support plate for the CT machine. Each isolation unit is made up of an elastomeric tube capped by a diaphragm and enclosing an air-tight volume. Different spring constants are produced by the isolation unit depending on whether only the diaphragm or the entire tube is compressed, allowing effective vibration isolation and shock protection for the supported equipment. The elastomeric tube provides both axial and lateral isolation eliminating the need for isolation units along multiple axes.

Abstract: A vibration isolating apparatus is disclosed which comprises an inner tube and an outer tube disposed in a parallel axis state to each other and an elastic member stretched therebetween, the elastic member being provided with a pair of liquid chambers disposed in the interior thereof at opposite sides through the inner tube. These liquid chambers communicate with each other through a restricted passage. The elastic member is provided with a pair of cavities on opposite outer sides of the inner tube. The cavities absorb relative displacement between the inner tube and the outer tube. When an amount of absorption becomes a predetermined amount, a compressing force is applied to the liquid chambers.

Abstract: A pneumatic coupling for connecting a driven machine member, such as a gantry type carriage of a measuring machine, to a drive member whereby the driven member is moved along a given axis; the coupling substantially comprising a bracket integral with the driven member and defining two facing wallsperpendicular to the aforementioned axis; and a drive element integral with the drive memberand located between the walls of the bracket via the interposition of respective air padsfitted to the walls via respective spherical supports.

Abstract: A fluid-filled elastic mount wherein an elastic body elastically connecting a first and a second support partially defines a fluid chamber filled with a non-compressible fluid. The elastic mount includes an oscillating plate which partially defines the fluid chamber and which is supported by the second support such that the oscillating plate is displaceable relative to the second support, and an actuator for oscillating the oscillating plate to thereby change a pressure of the fluid in the fluid chamber. The elastic mount further includes an elastic support member for flexibly connecting the oscillating plate to the second support such that the oscillating plate is movable toward and away from the fluid chamber. This elastic support member is formed of an elastic material which substantially permits shearing deformation of the elastic support member and inhibits its compressive and tensile deformation.

Abstract: A hydraulic mount assembly includes a pair of mounting members connected together through a hollow elastomeric body. This hollow body is closed by a resilient diaphragm so as to form a cavity for a damping liquid. A partition divides the cavity into a primary chamber formed between the partition and the hollow body and a secondary chamber formed between the partition and the diaphragm. The partition also includes a primary (damping) track and a secondary (dynamic rate reducing) track providing fluid communication between the chambers. A decoupler is held for limited reciprocating movement in an annular groove in the secondary track. In operation, high amplitude vibratory inputs seat the decoupler forcing damping fluid to flow between the primary and secondary chambers through the damping track. The resulting high level of damping and high dynamic rate serve to suppress the vibrations and control engine movement/noise.

Abstract: A positive electrode and a negative electrode are disposed in face-to-face relation to allow a distance between the electrodes to change, and an electrorheological fluid is filled between the electrodes. When an external force is applied to the electrorheological fluid via the electrodes, a normal stress occurs in the electrorheological fluid. This normal stress is greater than a shearing stress occurring in the electrorheological fluid, and an area in which displacement is proportional to the stress is large. Hence, the electrorheological fluid is applicable to various apparatuses such as a vibration controller and a fixing apparatus.

Abstract: An engine mounting for mounting an engine on the chassis of a motor vehicle has at least two fastening parts which are connected to one another with elastomeric springs. The engine mounting also has a hydraulic damping apparatus, and is configured so that the elastomeric springs have a hard shear-compression characteristic in two axes, and a soft shear characteristic in a third axis, the hydraulic damping apparatus being disposed in a direction parallel to the direction of the third axis.

Abstract: The energy absorbing structure of the present invention comprises a cylindrical hollow body of a fiber reinforced thermoplastic resin wherein both the ends are open, the cylindrical hollow body being attached to the outer wall of a moving body or the outer wall of a stationary body with which the moving body comes in contact in such a manner that the opening of the hollow body faces the outer wall.

Abstract: A Viscoelastic medium with fibers dispersed throughout eliminates the need for a constraining layer, thus reducing the size and weight of a damping treatment.

Abstract: A method of making a composite laminate having an internally damped constraining layer sandwiched between first and second load-bearing members. The constraining layer and load-bearing members are of a filament reinforced resin matrix, with the gelation temperature of the resin matrices of the constraining layer and load-bearing members being different. During a single cure cycle, the temperature of the assembled unit is increased such that one of the resin matrices hardens first while the other hardens at a later point in time and at a higher temperature, with the process ensuring for an adequate bond between the resin matrices and viscoelastic damping layers positioned on either side of the constraining layer members. The constraining layer members are affixed with gaps between them and a compliant tubing is placed within the gaps.

Abstract: A vibration isolating device comprises a base, a plurality of support members each placed onto the base and comprised of a two series layer of an electroviscous body and an elastomeric body, and a cradle supported through these support members. These support members are provided with circuit for applying voltage to each electroviscous body, respectively.

Abstract: A fluid-filled elastic mount including first and second support members and an elastic body interposed between these support members for elastically connection thereof. The elastic mount has a pressure-receiving chamber partially defined by the elastic body, first and second equilibrium chambers defined by first and second flexible diaphragms and communicating with the pressure-receiving chamber through first and second orifice passages, respectively, and a vacuum-receiving chamber which is separated by the second diaphragm from the second equilibrium chamber. In operation, the vacuum-receiving chamber is selectively subjected to a sub-atmospheric pressure or exposed to the atmosphere to control the elastic deformation of the second diaphragm. The elastic mount further has an auxiliary air chamber which cooperates with the vacuum-receiving chamber to accommodate a volumetric change of the second equilibrium chamber when the vacuum-receiving chamber is exposed to the atmosphere.

Abstract: An engine mount for mounting an automotive vehicle engine to the automotive vehicle chassis. The mount comprises a vibration isolator portion which is designed with relatively low stiffness to provide increased vibration isolation. Excessive displacements are avoided by snubbers. Snubbing action in one direction is provided by a circular snubber that is disposed in spaced relation to the vibration isolator portion. Snubbing action in other directions is provided by the particular design of the vibration isolator portion. Embodiments of both a front and a rear engine mount are disclosed.

Abstract: A fluid-filled elastic mount including a first and a second support member, an elastic body for elastically connecting the two support members, and a closure member fixed to the second support member to form a fluid chamber therein. The closure member includes a flexible diaphragm and a metallic member secured to the outer periphery of the diaphragm. The metallic member is press-fitted in a large-diameter portion of the second support member remote from the first support member, and fixed by caulking to the large-diameter portion. At least one sealing rubber lip is pressed between the metallic member and the second support member to assure the fluid tightness of the fluid chamber. Further, a fluid discharge passage is formed radially outwardly of the sealing rubber lip(s), between the metallic member and the large-diameter portion of the second support member, for permitting the fluid to be discharged from the fluid chamber. Also disclosed is a method of producing such a fluid-filled elastic mount.

Abstract: The present invention features a vibration attenuation assembly designed for the protection of single axis instruments such as accelerometers. The assembly includes an inner cylinder housing one or more single axis accelerometers co-aligned with a principle axis of the cylinder. The inner cylinder is suspended by three or more equally spaced springs at each end. The springs also function as electrical conductors for transmitting power and signals to the accelerometer. The inner cylinder is longitudinally shiftable within the outer cylinder and a main fluid cavity exists between the exterior surface of the inner cylinder and the inner surface of the outer cylinder. A rigid outer cap is provided at both ends of the outer cylinder and a rigid inner cap is provided at both ends of the inner cylinder.

Abstract: An intake system which includes an intake distributor as well as intake pipe sockets leading to inlet ports in cylinder heads of an internal-combustion engine is held on the internal-combustion engine by means of first and second decoupling elements. For the mounting of the intake distributor, a plurality of tension devices are required which tension decoupling elements supported on a flange facing of the cylinder head. The forces which are transmitted in this case by the tension devices to the intake distributor may also be supported on the cylinder head by way of additional decoupling elements which are under compression due to the tension devices.