Abstract: A muffler hanger includes a metallic body member, an elastic rubber mounting portion, a pair of elastic rubber supporting portions, and an elastic rubber connection portion. The metallic body member includes a bottom plate and a pair of side plates and assumes a U-like shape. The elastic rubber mounting portion is disposed within the metallic body member. The paired elastic rubber supporting portions each intervene between the side plate and the elastic rubber mounting portion so as to elastically connect the paired side plates and the elastic rubber mounting portion. The elastic rubber connection portion is fixedly attached to upper portions of the paired side plates in such a manner as to extend between the side plates.

Abstract: An exhaust pipe supporting device, with which the absolute spring rate in a special frequency range can be reduced, comprises a first holding portion 2, a second holding portion 3, a pair of side wall portions 4, 4 connecting on both sides of both holding portions and a central vibration damping portion 6 interposed at an intermediate position between the first and second holding portions 2, 3, wherein the central vibration damping portion 6 comprises a mass portion 61 and a pair of connecting portions 62, 62 which connect two sides of the mass portion 61 to the side wall portions 4, the mass portion 61 is formed to have larger mass than that of the connecting portions 62, and the connecting portions 62 may be provided with concave portions 64 depressed in the longitudinal direction on the connecting portion 62, the size T1 of the connecting portion 62 in the longitudinal direction thus being set smaller than the size T2 of the side wall portion 4 in the longitudinal direction.

Abstract: An exhaust pipe supporting device, with which the absolute spring rate in a special frequency range can be reduced, comprises a first holding portion 2, a second holding portion 3, a pair of side wall portions 4, 4 connecting on both sides of both holding portions and a central vibration damping portion 6 interposed at an intermediate position between the first and second holding portions 2, 3, wherein the central vibration damping portion 6 comprises a mass portion 61 and a pair of connecting portions 62, 62 which connect two sides of the mass portion 61 to the side wall portions 4, the mass portion 61 is formed to have larger mass than that of the connecting portions 62, and the connecting portions 62 may be provided with concave portions 64 depressed in the longitudinal direction on the connecting portion 62, the size T1 of the connecting portion 62 in the longitudinal direction thus being set smaller than the size T2 of the side wall portion 4 in the longitudinal direction.

Abstract: A structure for mounting a heavy article 27 to a carrier body 31 via an intermediate member 20, capable of temporarily fixing the heavy article during the mounting operation, wherein the intermediate member 20 is provided in a lower part thereof with a lower attachment portion 21 having holes 26 for fixing the heavy article 27 and in an upper part thereof with upper attachment portions 23 having engagement portions 25 for being temporarily fixed to the carrier body 31 and fixation portions 24 for being firmly fixed to the carrier body 31. To fix the intermediate member 20 to the heavy article 27, the lower attachment portion 21 of the former is sandwiched between a pair of elastic members 28 made of soft material, and fastened to the heavy article 27 by fastening members 30 through the holes 26, for allowing a slight vibration of the heavy article 27.

Abstract: A lift device mounted on a vehicle is provided for lifting a vertically movable assembly mounted to the vehicle. It has a primary lift arm in pivotal relation to the vehicle with a near end and a distal end disposed generally above the assembly. A secondary lift arm is pivotally mounted on the primary lift arm and has a free end. A hanging mechanism secures the assembly to the free end to suspend the assembly from the free end. A positioning mechanism raises and lowers the distal end of the primary lift arm to raise and lower the assembly and to hold the assembly off of the ground on which the vehicle travels. An elastic member attenuates resultant forces originating at the assembly and transmitted from the secondary lift arm to the primary lift. The forces are therefore absorbed preventing transmission of the forces to the vehicle.

Abstract: The present invention is directed to an exhaust system tool and a method for use thereof. The tool includes a pair of clamps connected by a coupler. The clamps are selectively openable to receive tubular members of the exhaust system. When a force is applied to the coupler, the clamps move relative to one another to separate or join the tubular members of the exhaust system.

Abstract: An exhaust system hanger isolator supports exhaust system components on a vehicle in a manner to reduce noise and vibration. The isolator includes a bracket having first and second apertures formed therethrough at opposing ends of the bracket. First and second rubber grommets are received within the first and second apertures, respectively. The first and second rubber grommets have chamfered ends to facilitate push-in insertion into the apertures, and the first and second rubber grommets each have a central opening to receive headed attachment rods therein.

Abstract: The present invention generally relates to a device and a method for hanging an object, such as a mirror or frame or other like objects. The present invention further relates to an object for incorporating such a hanging device. More specifically, the present invention provides an apparatus for mounting objects to a surface by adhesively attaching the object to a bracket. An aperture on the bracket may be used to hang the object on a surface, such as a wall.

Abstract: An exhaust system hanger isolator supports exhaust system components on a vehicle in a manner to reduce noise and vibration. The isolator includes a bracket having first and second apertures formed therethrough at opposing ends of the bracket. First and second rubber grommets are received within the first and second apertures, respectively. The first and second rubber grommets have chamfered ends to facilitate push-in insertion into the apertures, and the first and second rubber grommets each have a central opening to receive headed attachment rods therein.

Abstract: A fogging unit includes a flexible belt mount looped around a motor bracket on a motor and hooked to means for suspending the motor from a support frame. The fogging unit also includes a motor with an impeller attached to a shaft driven by the motor. A bracket is mounted to a motor housing of the motor, and a flexible belt is secured intermediate the bracket and motor housing, and extends above the bracket for attaching the fogging unit to an overhead oscillator or frame structure. A baffle is mounted to a back end of the motor housing in spaced relation to the motor housing to inhibit water from passing through the motor housing.

Abstract: The present invention relates to a suspension device (4) for connecting an item of on-board equipment (2) to the structure (3) of a vehicle, particularly a rotary-wing aircraft, said suspension device (4) comprising first and second parts (5, 6) shaped in the form of plates and capable of being fixed to said structure (3) and to said item of equipment (2), and suspension means (7) which are arranged between said first and second parts (5, 6). According to the invention, the suspension device (4) additionally comprises a locking system (20) capable of bringing the suspension device (4) into one of two positions: a locked position in which the locking system (20) immobilizes the first and second parts (5, 6) one with respect to the other, and an unlocked position in which the locking system (20) releases said parts (5, 6) so that they can move relative to one another, and means (21) for controlling the locking system (20).

Abstract: A center bearing hanger assembly (68) for supporting a drive shaft (62) of a vehicle is provided. The center bearing hanger assembly (68) includes a center bearing (66), which supports the drive shaft, having an outer housing (76). The outer housing (76) is mechanically coupled to a male hanger (102). The male hanger (102) is received by a female receptacle (104). The female receptacle (104) is attached to an undercarriage of the vehicle. The center bearing hanger assembly (68) increases the ease of vehicle assembly.

Abstract: A center bearing hanger assembly (68) for supporting a drive shaft (62) of a vehicle is provided. The center bearing hanger assembly (68) includes a center bearing (66), which supports the drive shaft, having an outer housing (76). The outer housing (76) is mechanically coupled to a male hanger (102). The male hanger (102) is received by a female receptacle (104). The female receptacle (104) is attached to an undercarriage of the vehicle. The center bearing hanger assembly (68) increases the ease of vehicle assembly.

Abstract: Hanger systems are provided for securing exhaust systems to the undercarriage of the automobile. One such system includes a hanger that incorporates an arm, a bushing defining an orifice, a retaining member, and a flange. The orifice receives a proximal end of the arm, which is loosely retained by the bushing so that the arm is able to rotate. The retaining member engages an exterior surface of the bushing and is formed, at least partially, of a strip of material. At least a portion of the strip of material is shaped to conform to at least a portion of the exterior surface of the bushing. The flange extends outwardly from the bushing. So configured, the hanger mounts to the automobile by attaching the flange to the frame member. The arm can be secured to a portion of the exhaust system so that the exhaust pipe is securely retained. Methods and other systems also are provided.

Abstract: A molded rubber hanger with a reinforcing belt made from a woven fabric or a continuous yarn. The belt has perforations through which the rubber passes to form a mechanical bond. The perforations may be woven directly into a fabric, or they may be provided after fabrication of the belt.

Abstract: A system for delivering power to a processor enables a DC-to-DC converter substrate to be secured to the processor carrier in the Z-axis direction. The ability to assemble converter to the processor in this way facilitates assembly compared to systems in which the converter is plugged in to the processor carrier in the direction substantially parallel to the surface of the motherboard.

Abstract: Spring arrangement for mounting a vibration- or shock-sensitive device attached to a supporting member in a housing, with the supporting member being fastened to the housing by helical spring elements. The supporting member is suspended in the housing by helical spring elements so that each elastic force component of one spring applied to the supporting member in a specific direction is counteracted by at least one elastic force component of another spring applied in the opposite direction so that the supporting member remains approximately in the center of the vibration clearance provided regardless of the position in which the housing is mounted in a motor vehicle. Due to the opposing elastic forces of the springs, the spring constant and therefore the natural frequency of the overall system can be advantageously increased, thus avoiding undesired points of resonance at low frequencies.

Abstract: Spring arrangement for mounting a vibration- or shock-sensitive device attached to a supporting member in a housing, with the supporting member being fastened to the housing by helical spring elements. The supporting member is suspended in the housing by helical spring elements so that each elastic force component of one spring applied to the supporting member in a specific direction is counteracted by at least one elastic force component of another spring applied in the opposite direction so that the supporting member remains approximately in the center of the vibration clearance provided regardless of the position in which the housing is mounted in a motor vehicle. Due to the opposing elastic forces of the springs, the spring constant and therefore the natural frequency of the overall system can be advantageously increased, thus avoiding undesired points of resonance at low frequencies.

Abstract: A suspension lug has a ring shaped elastomer body in which two fixing parts are arranged opposite each other, and a flexible insert shaped like a loop which is embedded in the elastomer body in such a way that it transmits tensile forces from one fixing part to the other when the suspension lug is subjected to tensile loading. At least one of the fixing parts has attachment areas on which the insert is hung in such a way that the insert extends essentially radially away from this fixing part. As a result, the structural height of the suspension lug is relatively small.

Abstract: Disclosed is a device which drastically reduces transmission of low frequency vibrations from one region to another. The device is particularly useful in the building industry and in use, is placed in a network between wall structures of adjacent rooms. The device is easy to install and can be modified to suit particular applications.

Abstract: Disclosed is a mounting structure for a suspension V-rod which can establish firm connection of a V-rod to an axle by fastening with unexcessive proper torque. Ends of an oscillating pin carried by a central bent end of the V-rod are aligned with brackets on a center of the axle and are fastened to the latter by a plurality of pairs of bolts and nuts. At least one pair of bolt and nut among the bolt and nut pairs and a bolt hole mating with the one pair are tapered such that a bold head of the bolt and the nut have tapered portions formed on opposed end faces thereof and gradually decreasing in diameter toward each other and that the mating bolt hole is complementarily tapered to snugly receive the tapered bolt head and the tapered nut.

Abstract: A ring-shaped elastomer body is defined by an outer wall and an inner wall and includes two diametrically opposed suspension poles and two equatorial zones. The suspension poles and the equatorial zones are arranged such that the suspension poles move away from each other and the equatorial zones approach each other when the suspension lug is subjected to tensile loading. A flexible insert is embedded in the elastomer body such that the insert transmits tensile forces from one of the suspension poles to the other of the suspension poles through the equatorial zones when the suspension lug is subjected to tensile loading. The distance of the insert from the inner wall of the elastomer body decreases steadily from the suspension poles to the equatorial zones. As a result, no harmful tensile stress can occur anywhere in the elastomer body when the suspension lug is subjected to tensile loading.

Abstract: In an arrangement for supporting an exhaust system on a motor vehicle, a mounting element is connected to a motor vehicle part, a support element is pivotally connected to the mounting element, and an intermediate retaining means, which is connected to the exhaust system, is pivotally supported by the support element, the pivot axes of the support element and the mounting element and of the intermediate retaining means are parallel and disposed in spaced relationship and so oriented that the support element is pivotable in the longitudinal direction of the exhaust system so as to permit expansion of the exhaust system.

Abstract: A vehicle plow suspension system designed for use with a large object such as a plow blade is disclosed. The suspension system is disposed between and connected to the plow blade and its associated positioning means, and comprises an expansion spring coaxially mounted about a two-way shock absorber in a sealed housing. The suspension system operates to attenuate both the relative movement between the plow blade and its associated vehicle, and the resultant forces thereby transmitted from the plow blade to the vehicle.

Abstract: A resilient suspension device for the exhaust pipe of any vehicle having an internal combustion engine, the device comprising a resilient body provided with fastener means for fastening both to the structure of the vehicle and to said exhaust pipe. The device is characterized in that it includes at least one transverse bar 8 carrying a counter-oscillating mass M, the end 9 of said bar remote from said mass M being included in a zone 16 of said body which is subject to vibration, and said bar 8 being held in a location situated between said zone 16 and said mass M by a relatively fixed portion 10 of said body, forming a pivot.

Abstract: A suspension for a motor vehicle exhaust pipe, the suspension comprising an upper strength member 3 suitable for securing to the body 5 of the vehicle, and a lower strength member 4 suitable for securing to an exhaust pipe 6, the two strength members being interconnected by a resilient system. Such a suspension is characterized in that said resilient system comprises two crossed resilient loops 1, 2 each incorporating a ring B of material having a high modulus of elasticity that is coated in rubber C, the loops 1, 2 being fixed to each of the strength members 3, 4 at two diametrically-opposite locations of their respective circumferences. The invention also relates to an assembly of such a suspension, the vehicle body, and the exhaust pipe.

Abstract: A suspension system of a washing member is comprised of two rods each connected with an upper main suspensor and a lower main suspensor and a secondary suspensor disposed at adjacent ends between the individual rods. The secondary suspensor is comprised of a creased hollow cylindrical rubber casing and a sponge encompassing the rubber member. The suspension system reduces vibration of a water basket to a body.

Abstract: A pipe restraint and methods for its use are disclosed. The pipe restraint includes a hollow cylindrical housing of varying diameter. A shaft having first and second wedges is received by the housing. The housing is attached to a fixed structural member, such as a wall and the shaft is attached to the pipe. Depending on the force being applied to the pipe, one of the wedges engages the housing at a point where the diameter changes. The housing's resistance to movement of the wedges varies between two points of differing diameter of the housing. In one embodiment a disc spring assembly is located at one end of the housing. In one method a gapped restraint is attached to a pipe and the size of the gap in the restraint is less than the anticipated movement of the pipe due to a static load.

Abstract: The present invention is a gimbal system for an apparatus supported in a frame. The gimbal system includes at least two parallel flexible beams positioned on either side of the apparatus. The apparatus is attached to the beam near a center of the beam to the apparatus, such that an active length of the beam is equal to a distance between the beams centers. A first end and a second end of the beam is mounted to the frame. At least one dampening mechanism is attached at a first end to the apparatus and at the other end to the frame. The apparatus exhibits axisymmetric roll stiffness independent of the motion of the frame.

Abstract: An exhaust pipe supporting device includes a generally elliptical body portion integrally formed of an elastic material, such as rubber. The body portion includes a first holder portion having a through-hole to receive a support member associated with a car body, a second holder portion having another through-hole to receive a support member associated with the exhaust pipe. A pair of lateral walls connect the first and second holder portions by attachment at opposite ends to opposed sides of the first and second holding portions. The first and second holding are held in this manner in spaced apart relation to each other, and a central connector is disposed intermediate between the first and second holder portions and connected at opposite sides thereof to the lateral walls. The central connector portion includes a central portion formed as a mass section, which optionally includes a metal mass portion, and opposite lateral portions which extend from the mass section to the opposite sides.

Abstract: An exhaust muffler support apparatus is disclosed including a bracket assembly for clamping at least one end of the muffler to an exhaust pipe and a vehicle mount for mounting the bracket assembly on the vehicle, such as a truck cab. The vehicle mount includes a mounting plate and a pair of tab members formed integral therewith and extending laterally thereto for supporting a mounting shaft. A support arm having one end pivotally attached to the mounting shaft and its other end pivotally connected by a connector shaft to the muffler bracket assembly enables the bracket assembly to pivot about the two axes of such shafts. A shock absorber sleeve of elastomer surrounds the mounting shaft to reduce vibration and noise and to extend the life of the muffler support apparatus. Each bracket assembly includes two pairs of clamp members which are urged together by threaded bolts.

Abstract: A compact disc player mounting system to be used in a vehicle. The mounting system comprises an outer case which is secured to the vehicle. An inner case is placed within the outer case and is suspended within the outer case by resilient mounts which are resilient in both a horizontal and vertical direction. The compact disc player is placed within the inner case and is, therefore, isolated from all adverse, exterior conditions.

Abstract: A flexible isolation mount for suspending a motor unit having a motor housing and a mounting bracket attached to the housing to reduce the sound and vibration of the motor. A mounting base is bolted to the bracket securing a flexible belt intermediate the mounting block and bracket. The belt has two loops that extend beyond the periphery of the mounting base and are folded over the base to form a flexible handle. A hook means attached to a support frame engages the flexible handle for an isolation mount.

Abstract: A suspension mounts a tub to a housing in a clothes washer. The suspension includes a coil spring having first and second loops at opposite ends thereof, and an integral rod joined thereto. A one-piece snubber has a resilient middle portion and opposite first and second lugs disposed inside the coil spring, with the first lug being aligned with the first loop, and the second lug being aligned with the second loop. The snubber middle portion includes a sidewall defining a cavity which changes in volume in response to excursions between the first and second lugs. The rod has a proximal end for joining one end of the spring to the washer housing, with the other end of the spring being joinable to the tub so that the snubber and spring cooperate together to provide a variable spring and damper suspension supporting the tub.

Abstract: A plurality of snubbers for a washing machine dampens and isolates unbalanced load excursions by using the positive displacement pumping action of air being forced through an orifice in each snubber. One end of each snubber is attached to the washing machine housing and the other end attached to the tub or mounting platform and has a resilient middle portion sidewall defining a cavity that changes in volume to minimize the effects basket excursions caused by unbalanced loads. The snubber sidewall defines an orifice providing a passageway for egress and ingress of air during the change in volume. The orifice meters air so that the resiliency of the snubber is greater for low frequency excursions than for high frequency excursions to thereby function as a damper for low frequency excursions and as a gas spring for high frequency excursions.

Abstract: A suspension spring assembly for a washing machine employs a coil spring in compression. The suspension spring system uses a snubber mounted inside the coil spring to help dampen and isolate unbalanced load excursions by using the positive displacement pumping action of air being forced through an orifice in the snubber. A second snubber may be employed with the coil spring.

Abstract: An elastomeric, electrically conductive coupling member facilitates suspending a vehicle exhaust system from the underside of the vehicle while concomitantly effectively grounding out the exhaust system through an electrical connection to the underside of the vehicle. The inventive coupling member is preferably made of an elastomeric material that is impregnated with a conductive material such as metal or carbon. Electromagnetic emissions from the vehicle ignition system are reduced through the electrical coupling between the underside of the vehicle and the vehicle exhaust system which thereby improves radio reception by preventing or reducing the vehicle ignition system noise that otherwise interferes with radio reception.

Abstract: An automotive engine is generally provided with an exhaust gas pipe assembly extending generally rearwardly from the engine for discharging exhaust gases. The exhaust gas pipe assembly includes a plurality of exhaust gas pipes, at least one chamber formed intermediately of the exhaust gas pipe assembly, a first support member disposed in the proximity of the engine, and at least one second support member disposed in the proximity of the chamber. The first support member can effectively absorb relative displacement between the exhaust gas pipe assembly and the vehicle body in a direction transversely of the vehicle body whereas the second support member can effectively absorb relative displacement between the exhaust gas pipe assembly and the vehicle body in a direction longitudinally of the vehicle body.

Abstract: A hanger for suspending a first component from a second elevated component comprising a first body member formed of a thermoplastic elastomer having a first durometer hardness and a tensile strength sufficient to support the first component, and having a pair of spaced openings therein; a second body member formed of a thermoplastic elastomer having a durometer hardness less than the first durometer hardness, disposed within one of the openings of the first body member and being molded integrally therewith and having an opening therein for receiving an attachment element of the second elevated component; and a third body member formed of a thermoplastic elastomer having a durometer hardness less than the first durometer hardness, disposed within the other of the openings of the first body member and being molded integrally therewith and having an opening therein for receiving an attachment element of the first component; the materials of the second and third body member being compatible with the material of t

Abstract: A stable, directable suspending device for elevating a speaker is provided which device is comprised of a clamp portion for firmly holding said speaker and a suspending portion for attaching the clamped speaker to a ceiling or other support member. The direction in which the sound from the speaker is emitted is determined by the plane of the speaker around which the clamping portion is fixed with any internally or externally developed vibration being dampened by means provided as part of the support portion.

Abstract: The link includes two rigid inside tubes 4 and 5 for connection firstly to a vehicle chassis and secondly to the engine of the vehicle, a rigid hollow outer strength member 7 of composite material, said strength member 7 thus possessing two opposite walls 7a and 7b extending lengthwise, and two low-stiffness inside resilient pads 8 and 9 connecting respective ones of said inside tubes 4 and 5 to said opposite walls 7a and 7b of the outer strength member. The fibers of the composite material of the outer strength member 7 are crossed, and at least a fraction of them extend at an angle of more than .+-.30.degree. relative to the axis of the link. The link is applicable to any vehicle.

Abstract: An equipment support structure capable of permitting the vertical arrangement or orientation of a damper spring to be readily carried out irrespective of the posture of setting of an equipment, A damper link which is pivotally moved depending upon the position of setting of an equipment is pivotally mounted at the proximal end thereof on one of the equipment and mount for supporting the equipment through dampers and a damper spring is provided between the damper link and the other of the mount and equipment for offsetting load applied from the equipment to the dampers and operatively connected to the damper ling so as to be pivotally moved in association with the damper link.

Abstract: A flexible line trimmer with a vibration dampening support handle includes a rotary power source and a rotatable trimmer head, both of which are connected by a drive shaft enclosed in a rigid housing. A flexible line trimmer has a vibration dampening rear support handle assembly and a front control handle. The rear handle assembly is resiliently coupled to the drive shaft housing and to the power source housing.

Abstract: A support device for supporting on a stationary framework a mass which is cantilevered-out from a moving element that moves under the effect of thermal expansion or contraction. The device comprises a rigid stand supporting the mass and connected to the stationary framework via two parallel arms of equal length and situated at two different heights, each of the two arms being hinged at one of its ends to a corresponding point on the stand and at its other end to a corresponding point on the stationary framework, the rigid support being placed on the moving elements via a connection that slides horizontally. The device is applicable to supporting collector manifolds in steam generators or boilers.

Abstract: A coaxial isolator provides for damping in a longitudinal direction. A pair of elongated frame elements have a shockabsorbing element mounted therebetween. The first frame element is provided with a central aperture into which a central pedestal formed in the second element projects. The pedestal is supported by a rod which is mounted in bores through the aperture walls and which extend through one end of the first frame element. The rod may serve as a first point of attachment, while the opposed end of the first frame element serves as the second end of attachment. The isolators may be ganged in series to provide appropriate response curves.

Abstract: A resilient support device having a non-linear elastic characteristic, the device being of the type constituted by a body 1 of resilient material provided with two couplings members 6a and 6b for coupling firstly to a support 7 and secondly to a mass F to be supported, the coupling members 6a and 6b being resiliently linked together by two relatively rigid branches 8 and 9 of said body 1. The branches 8 and 9 are connected to each other by at least one resilient crosspiece 2 that is prestressed in traction and that is suitable for buckling when the force applied between said coupling members 6a and 6b reaches a predetermined value x.sub.3, the coupling deformation of the crosspiece(es) 2 being stopped by an abutment system 5 of relatively high stiffness. An application of the device is as an exhaust pipe support.

Abstract: An apparatus as a secondary vibration isolation system for use in mounting a mechanism having a vibrating element, a housing and a primary vibration isolation system to a separate structure. The apparatus is comprised of a hanging element attached to the separate structure, a secondary vibration isolator for dampening the vibration transmitted from the mechanism to the separate structure, and a securing element to secure the mechanism to the hanging element so that the secondary vibration isolator is positioned between the mechanism and the hanging element.

Abstract: A suspension arrangement for exhaust installations on motor vehicles, in particular exhaust installations with large-area, flat designs of mufflers joined together by means of an upper shell and a lower shell. The arrangement creates an elastic muffler suspension which is near the center of gravity, is space-saving and close to the vehicle bottom but is still easy to assemble. The arrangement has a hollow profile type of component protruding through the muffler at its center of gravity and essentially at right angles to the vehicle bottom, open at its outer ends and solidly connected to the upper shell and the lower shell, and is positively connected to the elastic suspension part fastened to the vehicle bottom.

Abstract: A seat suspension having a stationary support that can be mounted on a vehicle. An intermediate frame is mounted on the stationary support for vertical sliding movement relative thereto by a spring suspension. A seat support frame is mounted on the intermediate frame for upward or downward movement relative thereto. A ratchet assembly interconnects the seat support frame and the intermediate frame and includes ratchet members on one of the frames and a pawl member on the other of the frames. A pawl release, including a biasing spring and a pawl actuating member, is provided to allow the support frame to be moved from the lower to any intermediate upper position and create an impulse at each position without need to activate said activating member. The activating member is operative to selectively move the pawl to a nonengagement position.

Abstract: A vibration isolating mount for use with a vibratory pile driver and extractor is comprised of a pair of identical plates that are spaced from each and are interconnected by a polyether-based urethane center member. Each of the plates are provided with pluralities of attachment holes for attaching the vibration isolating mount between an exciter and a suspension housing of a vibratory pile driver and extractor. Each of the plates is also provided with pluralities of lug holes that are filled with the polyether-based urethane of the center member and provide a mechanical connection between the plates and the center member in addition to a chemical bond adhering the plates to the center member.