Abstract: A suspension for an automobile comprises a cylinder having a lower seat secured fixedly to an outer periphery thereof, a piston rod projecting from the cylinder and having an upper portion supported rotatably by a car body and a coil spring having lower and upper ends respectively held by the lower seat and an upper seat. To the piston rod is secured fixedly a guide having a cylindrical portion provided on an outer periphery with a thread. A movable member provided on an inner periphery with a thread engaging the thread on the guide is coupled with the guide by the engagement of both threads. The movable member is secured fixedly to the upper seat. The piston rod is provided with a tool engaging portion which is turned to adjust the car height.

Abstract: A suspension device particularly for a trailer. On each side thereof the device includes a suspension arm whose free rear end supports a spindle and whose front end is interconnected with the frame by means of a pin carried by a fixed bracket. A shock absorbing element consisting of a soft material block and an elastic element consisting of a helical spring are mounted inside a common tubular housing which is interconnected with the fixed bracket. A push rod, interfacing with the spring and the block is pivotally mounted to the suspension arm. This device may include an optional telescoping cross member which can be welded together during the assembling operation.

Abstract: In a vertical telescopic strut and transverse lower control arm type suspension, such elements are interconnected at a point substantially inboard between the ends of the control arm and the wheel support knuckle is substantially outboard of the strut axis at the distal outer end of the lower control arm. A second transversely extending control arm for the wheel knuckle is swingably mounted upon the lower telescopic portion of the strut above the lower control arm.

Abstract: An adjustable leveling suspension unit for vehicle shock absorbers having an external coil compression spring in cooperation therewith in the general manner of the MacPherson type strut assembly. The adjustable leveling unit includes a seat for the coil spring which is slidable on the shock cylinder, a collar and sleeve combination on the shock cylinder in position to support the seat and to slide the seat to different positions on the shock cylinder when necessary to correct for spring sag and restore the shock absorber to its desired position, and a guide or key to hold the spring seat against rotation while being moved on the shock cylinder.

Abstract: A fluidic damping mechanism including a cylinder, a piston rod and a piston dividing the interior of the cylinder into a pair of working chambers is arranged to include within one of the working chambers a composite damping structure which imparts damping characteristics derived from the combined action of a mechanical spring mechanism and fluid throttling components.

Abstract: A rear wheel suspension for motorcycles which comprises a hydraulic damper of telescope type consisting of telescopic inner and outer tubes and a suspension coil spring positioned in these tubes. In order to stabilize the damping characteristics, and at the same time, to prevent the inner end cross section of the inner tube from fouling the suspension coil spring and thereby causing unsatisfactory operation, abnormal noise and other problems, one part of the suspension coil spring, which is located in the outer tube under the condition where the hydraulic damper is extended to the maximum, is made smaller in pitch diameter than the other part, which is located in the inner tube so that the inside working oil flow due to its expansion or compression may be hardly hindered by the part of the suspension coil spring that is located in the outer tube.

Abstract: An auxiliary lift axle wheel assembly is mounted to a vehicle body by L-shaped levers, each of which is pivotally mounted at the intersection of its legs to the vehicle, and the lift axle is held in its upward, unloaded position on the longitudinally extending legs of the levers by the force of springs positioned over the longitudinally extending legs bearing against the upwardly extending legs of the levers. Air inflatable air springs positioned between the auxiliary lift axle and vehicle body are filled with air to move the auxiliary axle downward relative to the vehicle body with force sufficient to overcome the force of the springs to urge the wheels of the axle down into load-bearing engagement with the road surface beneath the vehicle.

Abstract: A vehicle recoil mechanism includes a two-part shaft, a collar being slidable on one part of the shaft and in operative engagement with a recoil spring, the other part of the shaft being associated with a fluid chamber, so that upon wear on the shaft by movement of the collar relative thereto, only the one part of the shaft need be replaced, without interfering with the fluid chamber.

Abstract: During flight, helicopter landing gears are suspended by a tuning spring m the helicopter airframe to provide limited relative movement between the landing gear masses and the airframe. As the aircraft vibrates due to vertical or in-plane forces at the rotor head, the landing gear masses react oppositely thereto, thus generating balancing forces which are applied to the airframe to balance the rotor excitations.

Abstract: An auxiliary lift axle wheel assembly is mounted to a vehicle body by L-shaped levers, each of which is pivotally mounted at the intersection of its legs to the vehicle, and the lift axle is held in its upward, unloaded position on the longitudinally extending legs of the levers by the force of springs bearing against the upwardly extending legs of the levers. Air inflatable air springs positioned between the auxiliary lift axle and vehicle body are filled with air to move the auxiliary axle downward relative to the vehicle body with force sufficient to overcome the force of the springs to urge the wheels of the axle down into load-bearing engagement with the road surface beneath the vehicle.

Abstract: A vehicle suspension device comprising a telescopic shock absorber including an elongated tubular housing, a piston reciprocable within the housing and connected to one end of a piston rod extending axially outwardly from one end of the housing, a tubular dirt shield supported on one end of the piston rod and extending coaxially of the rod and the housing, a helical coil spring extending coaxially of the housing and the dirt shield, and first and second support flanges located at the axially opposite ends of the coil spring, with one of the flanges being axially removable from the device by a simple rotative and axial manipulation thereof, whereby to provide for removal, replacement or similar interchanging of the coil spring.

Abstract: A dispensing unit which may be readily incorporated in an enclosure, such as a conventional can. The dispensing unit includes a readily collapsible bag in which a product to be dispensed is stored, and a plurality of spring strips. Each of the spring strips is of a construction to inherently roll into a coiled form and constantly urging the collapsing of the container. When the container is incorporated in an enclosure of the general can type including an upper end unit secured to a body by a seam, upper end portions of the spring strips may be anchored within the seam.

Abstract: A shock absorber having a housing with a piston chamber and a radially spaced accumulator chamber. A piston rod having a piston at its inner end is slideably mounted in the piston chamber, while the outer end of the piston rod extends outwardly from the shock absorber housing wherein it is provided with a striker plate which is initially positioned for engagement by a load to be decelerated. The fluid passage between the accumulator and the piston chambers is provided with a tapered metering slot designed to communicate a lesser amount of oil between the piston and the accumulator chambers as the piston is decelerated, resulting in a gradual deceleration of the load exerted on the piston. An adjustable metering valve carried by the shock absorber housing is utilized to communicate oil from the piston chamber when a load is exerted on the striker plate which is less than the maximum amount the shock absorber may receive.

Abstract: A hydraulic spring combination to replace a long spring having surging chcteristics in high velocity application with reciprocating parts in automatic and semiautomatic weapons. On recoil a rod penetrates a fluid chamber, causing a piston to move against a shorter spring at a slower velocity proportional to the ratio of rod cross-sectional area to the piston cross-sectional area. The shorter spring returns the piston to move the rod hydraulically to return the reciprocating parts to battery position.

Abstract: A dashpot wherein a fitting including a calibrated bleed orifice formed therein is detachably retained in a valve body which houses a check valve and forms a part of a diaphragm chamber.

Abstract: In a spring leg for an independently suspended front wheel of an automotive vehicle which has a piston-type shock absorber surrounded by a coil spring wherein one end of the spring rests via a spring cup against the shock absorber's piston rod which in turn rests via a ball bearing assembly against the vehicle's body there is provided the improvement of a circumferential groove in the upper end of the piston rod of the shock absorber to form the inner race for the balls of the ball bearing, a first collar-shaped metal ring surrounding the piston rod and having a portion so shaped and positioned to provide a portion of the outer race for the balls of the ball bearing and a flange radially extending from the shaped portion for fixing to the body of the vehicle, and a second collar-shaped metal ring surrounding the piston rod axially displaced from the first metal ring and surrounding the piston rod, the second metal ring having a portion so shaped and positioned to complete the outer race for the balls of the b

Abstract: An independent strut-type suspension system for a front wheel drive vehicle, wherein the shock absorber is secured at the lower end thereof to the steering knuckle at an angle such that it extends rearwardly of the drive shaft and below the center line thereof, providing a low overall height profile, coupled with anti-dive and anti-lift characteristics, with a coil spring mounted eccentrically around the shock absorber to diminish bending moments on the shock absorber.

Abstract: A vehicle suspension device comprising a telescopic shock absorber including an elongated tubular housing, a piston reciprocable within the housing and connected to one end of a piston rod extending axially outwardly from one end of the housing, a tubular dirt shield supported on one end of the piston rod and extending coaxially of the rod and the housing, a helical coil spring extending coaxially of the housing and the dirt shield with the dirt shield being disposed entirely within the confines of the coil spring, and first and second spring supports located on the dirt shield and the exterior of the housing for operatively supporting the coil spring in its proper position around the shock absorber.

Abstract: A suspension unit comprising a telescopic damper with a surrounding coil spring has a rotatable cam sleeve, an intermediate sleeve and a fixed end sleeve, the latter two sleeves being adjustable relative to each other both angularly and axially, but normally providing a fixed reaction for normal adjustment of the spring length by rotation of the cam sleeve, which may be of identical form to the intermediate sleeve, each having an axial cam profile at one end and axially extending projections of different lengths at its other end.

Abstract: An adjustable kinetic energy absorbing device wherein a piston is moved in response to an applied impact force along within a tube defining a chamber containing hydraulic fluid. The tube has a plurality of orifice openings therein spaced therealong in the direction of movement of the piston, and an elongated path is defined outwardly of the chamber, preferably in the outer surface of the tube, and in fluid communication with the orifice openings. The path is relatively narrow in width and extends along the tube. An elongated flow control element is supported in the device and movable lengthwise along the path in response to manual operation of an adjustment assembly including a cam operatively engaging the elongated element. The flow control element has formations spaced therealong adapted to register with the orifice openings to control flow of hydraulic fluid through the openings in response to movement of the element.

Abstract: A vehicle suspension strut for use in a vehicle suspension system for vehicles having sprung and unsprung portions, the strut including a telescopic shock absorbing device having a cylinder and a reciprocal piston rod, means for securing one end of the clyinder to one of the vehicle portions and for securing one end of the piston rod to the other of the vehicle portions, a conversion assembly for selectively converting the strut such that it is adjustable in response to the supply of a pressurized fluid, the assembly comprising an elongated generally tubular flexible diaphragm member and first and second attachment means adapted to be removably connected to the shock absorber so as to define therewith a variable volume gas chamber, and means for selectively communicating a pressurized gas, such as compressed air, to and from the chamber to effect selectively expansion and contraction thereof.

Abstract: Cushioning apparatus for cushioning a hydraulic jack is disclosed which includes a plunger reciprocably mounted within a blind bore. The plunger sequentially closes off a plurality of axially spaced orifices provided through the wall of the bore as the plunger moves from a first position adjacent the open end of the bore to a second position adjacent its closed end, thereby progressively restricting the escape of fluid from the bore so as to slow the movement of one of the telescopic members of the jack toward another.

Abstract: The present invention involves a spline element for a seat in a vehicle, in which the height of the seat can be adjusted without changing the spline initial stress, and wherein the initial stress of the spline can be adjusted without making a change in the height of the seat. This is achieved by means of a cylinder which provides an enclosed gas compression compartment against which a pair of pistons disposed at opposite ends of the cylinder can be adjusted from each end thereof. Each piston has flow channels provided therethrough which can be closed with the aid of a respective back stroke valve which can be set in motion at any time from the outside, thereby turning the piston into a floating piston.

Abstract: A shock absorber, in an exemplary embodiment, especially suited for motorcycles and the like characterized as being fabricated of a minimum number of components assembled in a manner which permits rebuilding of worn components and wherein selected variable dampening is obtained through the provision of external adjustment device for varying the degree of dampening. The adjustability features allow for variable jounce and rebound factors to accommodate both normal and severe driving conditions and to permit compensation thereof, all without dismantling or demounting of the shock absorber from the vehicle with which it is associated. Adjustment in one instance comprises metering the hydraulic fluid and in the other instance varying the disposition of the main compression spring. Structure on the body of the shock absorber is provided to dissipate heat thereby increasing the quality of performance of the shock absorber during jounce and rebound conditions.

Abstract: A dual spring support for particular use in supporting a vehicle or tractor cab or the like, and specifically including two co-axially disposed springs extending intermediate two spaced-apart vehicle members which are to be cushion supported relative to each other. An abutment piece is disposed between two ends of the two springs, and abutment surfaces are disposed at the other two ends of the two springs, all so that the springs are opposing in their forces and increase the force at each end of the stroke. Also a shock absorber is shown incorporated in the assembled support.

Abstract: A vehicle suspension device comprising a telescopic shock absorber including an elongated tubular housing, a piston reciprocable within the housing and connected to one end of a piston rod extending axially outwardly from one end of the housing, a tubular dirt shield supported on one end of the piston rod and extending coaxially of the rod and the housing, a helical coil spring extending coaxially of the housing and the dirt shield with the dirt shield being disposed entirely within the confines of the coil spring, and first and second spring supports located on the dirt shield and the exterior of the housing for operatively supporting the coil spring in its proper position around the shock absorber.

Abstract: An improved automotive shock absorber assembly comprises a housing containing a fluid, a shaft extending axially into the housing, a piston head connected to the shaft within the housing, a volute spring cooperating with the shaft and piston head and adapted to compress in the fluid when the shaft is subjected to axial loads, means for sealing the housing to prevent the leakage of liquid therefrom, and means for maintaining the shaft in axial alignment within the housing when the shaft is subjected to off-axis loads.

Abstract: There is disclosed an extension for a motorcycle fork of the type including a downwardly biased damper and having its upper extremity received in a hollow fork tine and having its bottom extremity secured to the bottom end of a hollow slider which has its upper extremities telescoped over such tine. The bottom wall of the slider is severed from the slider itself and the damper rod extended and severed medially. A damper rod extension of a predetermined length is fitted between the top and bottom sections of such damper rod and has its opposite ends affixed to the medial ends of the damper rod sections. The damper rod is then retracted into the tine and a slider extension formed with an extension chamber having an axial length at least equal to such predetermined length is fitted over the lower end of such damper rod and affixed thereto. The slider extension is then secured to the lower extremity of such slider as by welding.

Abstract: Means are described for absorbing energy when a drill string has been lowered into a tube for storage. The apparatus comprises a piston, orifice, fluid and spring in combination with a storage tube capable of holding a string of drill pipe.

Abstract: A telescopic gas spring comprises a cylinder closed at one end, a piston slidable in the cylinder and a piston rod carrying the piston and extending sealingly through the other end of the cylinder. An auxiliary spring is disposed at the closed end of the cylinder and comes into operation as the piston approaches a position of full compression, to provide additional resistance to further compression of the gas spring. The auxiliary spring may be a coil spring or a gas spring.

Abstract: A vehicle suspension strut for a vehicle having sprung and unsprung portions, the strut including a telescopic shock absorber including a cylinder and a reciprocable piston and piston rod, attachment means for securing the piston rod to one of the vehicle portions and the cylinder to the other of the vehicle portions, first and second spring seats spaced axially of the strut and spaced radially outwardly from the shock absorber, a helical coil spring arranged substantially concentrically of the shock absorber and extending axially between and supported by the spring seats, means defining a variable volume gas chamber with the shock absorber and including a generally tubular-shaped flexible diaphragm member disposed between the radially outer side of the shock absorber and the radially inner side of the coil spring, one end of the diaphragm member being fixedly secured to the shock absorber cylinder and the opposite end of the member being fixedly secured to the piston rod, and means for supplying pressurized

Abstract: A leveling strut for use in a vehicle leveling system and including a shock absorber cartridge telescopically received within an elongated tubular housing, with the cartridge including a reciprocal piston and piston rod, attachment means for securing the piston rod to the sprung portion of the vehicle and the housing to the unsprung portion of the vehicle, retaining means releasably retaining the shock absorber cartridge within the housing whereby to permit convenient removal of the cartridge from the housing for purposes of repair, replacement and the like, means defining a variable volume fluid chamber including a flexible diaphragm member, and means for selectively communicating pressurized fluid to and from the chamber to effect expansion and contraction thereof.

Abstract: A resilient mounting is disclosed for an automotive wheel suspension system. It includes a telescopic shock absorber and a coaxially arranged helical spring. Means are provided through which forces from the shock absorber and from the spring are separately transferred to the body and therefore bending forces to the shock absorber are prevented and wear of the shock absorber is diminished.

Abstract: A shock absorber having an external, helical coiled spring in concentric alignment therewith, one end of said coiled spring being fixed to one end of such shock absorber and the other end of said coiled spring being provided with an internally projecting lug as a part thereof, said other end being secured to said shock absorber by means of a clamping member, said clamping member comprising two sections which when joined, are cylindrical and have a diameter approximately equal to the diameter of said coiled spring, said two parts having a longitudinal interface, said clamping member being provided with a continuous helical groove in the outer surface thereof, said helical groove substantially conforming to the configuration and cross-sectional dimensions of said coiled spring and having an indentation at lower end thereof adapted for receiving said internally projecting lug of said helical coiled spring, said clamping member further having an opening therethrough along its axis of dimensions substantially the

Abstract: An impact absorber, particularly for automobile fenders, comprising a cylinder, a piston on one end of a piston rod and slidable in the cylinder, an annular partition slidable on the piston rod, and a valve carried by the piston and allowing, on compression of the impact absorber, flow from the chamber beyond the piston to the annular chamber between the piston and the partition. The valve is biased in the closing direction by a spring and has a valve member with opposed differential areas which are exposed to the pressure in the said chamber and are selected to bias the valve in the opening direction.

Abstract: A load-levelling shock absorber unit including a guide piston and piston rod and a first surrounding ride control cylinder, one of which is adapted to be connected to a first sprung mass and the other of which is adapted to be connected to an unsprung mass; an oil reservoir cylinder surrounding the ride control cylinder; and an expansible lift cylinder. The ride control, oil reservoir and lift cylinders are all preferably concentrically arranged and are of the hydraulic type. The piston rod reciprocates within the ride control cylinder and, so long as the piston is centrally positioned within the first cylinder, a lagged control valve does not displace sufficiently to allow repositioning of the outer wall of the lift cylinder.