Abstract: A method and a device for absorbing movement in pipe lines comprising an expansion loop system wherein the expansion loop system will absorb axial movement of the pipe without imparting thrust loads to the pipe. The system includes an anchor, a pipe guide for guiding the pipe along a longitudinal axis and an expansion loop member attached along the length of the pipe at severed central open ends of the pipe. The expansion loop member comprises a pair of 90.degree. elbow connectors, a 180.degree. bend return member, and a pair of flexible tube members connecting the elbows to the return member. The flexible tube members accommodate the axial movement of the pipe.

Abstract: A connector includes a first member and a second member. The first member includes a conduit having a ring-shaped projection formed at a rear end and a tubular body having first engagers and second engagers. The second member has a tubular shape, and includes third engagers and a presser formed adjacent to a rear end. The ring-shaped projection of the conduit engages with the first engagers of the tubular body, thereby preventing a relative movement between the conduit and the tubular body in an axial direction in the first member. Further, the second engagers of the tubular body engage with the third engagers of the second member, thereby preventing a relative movement between the first member and the second member in an axial direction in the connector.

Abstract: A vibration isolating clamp apparatus for maintaining an end of a tube in sealing abutment with a surface, in substantial alignment with an aperture disposed in the surface, suitable for use in extreme temperature environments, wherein the tube has an outwardly-projecting, annular bead arranged substantially adjacent the portion of the tube adjacent the aperture in the surface. A retainer member is provided with a clamp attachment region and a tube retaining region. Means for enabling affixation of the clamp apparatus to the surface are disposed in the clamp attachment region. In the tube retaining region, means are provided for insertably receiving the extreme end of the tube. Bead sealing means entrap the bead between the tube retaining region and the surface. In the tube retaining region, tube isolation means limit the magnitude of transverse vibrations of the end of the tube, proximate to and beyond the bead, and away from the extreme end of the tube.

Abstract: A connector device for connecting a small diameter pipe is disclosed. The device has a joint body internally formed with a communication bore, first and second pipes intruded into end parts of the joint body, a socket member having elastic pawl walls each impinging on an annular swelling, and sealing members internally provided. The second pipe is movable a given distance in the axial core direction.

Abstract: A flexible coupling for connecting an engine manifold to an exhaust pipe to relieve torque. Concentrically spaced flexible tubes, which have insulation filling the annular space between them, are connected to inlet and outlet tubes having interior ends located between the ends of the flexible tubes. The inlet and outlet tubes have enlarged upstream ends and smaller downstream ends. By overlapping the ends of the inlet and outlet tubes, the tubes are able to have relative angular movement when the flexible tubes bend due to engine torque. One or more separate tubes which also have enlarged and smaller upstream and downstream ends may be provided to overlap with the inlet and outlet tubes to allow bending of longer couplings.

Abstract: A flexible coupler apparatus for joining successive lengths of pipe in an exhaust system for a vehicle. An inner sleeve member is concentrically received by an outer sleeve member. A substantially porous, non-sealing, vibration absorbing spacer member is arranged between the sleeve members where they overlap, to preclude direct contact between the sleeve members. The spacer member is non-sealing to preclude deterioration while minimizing interference with the reciprocation and articulation of the sleeve members. A flexible, extensible member mechanically connects the sleeve members at their distant non-overlapped ends. A closure member may be employed to protect the extensible member from damage from external elements and forces.

Abstract: A flexible connector has a plurality of bearings housed in a single housing to attenuate vibration and noise. In one embodiment, the bearings have a spherical configuration with the center point of the spherical segment of one of the bearings at a different location from the center point of the spherical segment of the other bearing thereby providing efficient and compact bearings and a smaller envelope for such bearings.

Abstract: A pipe joint structure is disclosed. An inscribing joint pipe 2 is fixed to an inner peripheral surface at an end portion of a first pipe 1a, while being projected slightly outwardly from the axial end of the pipe 1a. A stopper ring 15 is fixed onto the outer peripheral surface of the pipe 1a at a location slightly spaced from the axial end thereof. An annular engaging notch 11 is formed in the outer peripheral surface near the stopper ring or an annular engaging ring 11' is inserted around the end portion of the pipe 1a and fixed near the stopper ring. A circumscribing reinforcing pipe 3a, 3b are fixed to an outer peripheral surface at an end portion of the other pipe 1b to be joined to the pipe 1a, while being projected slightly outwardly from the axial end of the pipe 1b.

Abstract: A structure for coupling resin tubes by the use of a bracket, comprises tubes made of resin, a pipe or insert made of metal and inserted into one end of the tubes, and a bracket made of resin and surrounding the insert and the tubes where the insert is inserted upon injection molding of the bracket. The tubes are coupled with a clearance left therebetween. The metal insert extends radially and outwardly to provide annular projections where it is inserted into the one ends of the resin tubes. Also, the metal insert has opposite end extending beyond axial ends of the bracket.

Abstract: For the vibration-based decoupling of two pipe parts, such as the exhaust pipe of an internal combustion engine and the exhaust system, at least two compressed absorber cushions of braided, knitted, tangled or similar wire are arranged so as to absorb or damp movements of substantially the same order of magnitude in all degrees of freedom, that is, with respect to all possible movements. For this purpose, the at least two absorber cushions each have a polygonal configuration.

Abstract: A liquid spray lance is attached to a pump housing by a relatively stiff sleeve. A pump outlet coupling within the pump housing is insulated from transferring vibration to the lance by a hose that passes through the sleeve and that connects the pump outlet coupling to the inlet coupling of the lance. An intermediate portion of the hose is sufficiently flexible and unrestrained as to absorb the pump housing vibration.

Abstract: In a vibro-isolating joint including two rigid flanges, a flexible cylindrical member such as bellows interposed between the flanges and a plurality of limiting bolts extended through opposed through holes in the flanges, a cylindrical elastomer body is retained in each of through holes in at least one of the flanges and a hollow sleeve is concentrically integrated with the elastomer body so as to protrude one end of the hollow sleeve from an outer surface of the flange so that lock nuts on the limiting bolts engage the protruded ends of the hollow sleeves resiliently supported in the through holes, respectively to thereby provide a high axial thrust together with a vibration isolating property.

Abstract: A flexible exhaust coupling comprising a first length of pipe (1) terminating in a convex spherical bearing part, a first connecting flange (2) associated with the first length of pipe, a second length of pipe (7) terminating in a concave spherical bearing part facing the convex spherical bearing part of the first length of pipe, a second connecting flange (6) associated with the second length of pipe and clamping means (10) arranged in conjunction with thrust members (11) to urge the connecting flanges towards each other. The exhaust coupling also includes vibration-damping members (15) located between at least one of the connecting flanges and the corresponding clamping means.

Abstract: An intake manifold assembly for a V-type engine utilizes separate flange members that are resiliently connected to a manifold body through adherently secured resilient vibration absorbing isolators. The flanges and isolators combine with the body to define sealed resilient fluid conducting joints that provide the sole support for and resiliently isolate at least the adjacent portions of the manifold body. They also provide for connection of the manifold to the engine using conventional non-isolating connecting bolts or fastening means which are easily applied and removed and limit the number of special separate parts required at assembly.

Abstract: A flexible pipe joint having an annular housing with a central cavity in which a nipple is partially submerged. The nipple has a flared end on the submerged portion thereof. An elastomeric ring, internally contoured spherically with reference to a common center point spaced from the flared end and located on the longitudinal axis of the joint, is adhered about its outer surface to the inner surface of the flared end. An elastomeric body having an assembly of embedded concentric spherical rings is adhered to the outer surface of the flared end. The spherical rings are contoured and positioned symmetrically with respect to the common center point. A flange (42 or 144, 146) is welded to the nipple at the end opposite the flared end. The flange is used to bolt the joint to the adjacent pipe sections and can be in two parts (144, 146). A collar welded to the housing encircles the nipple and engages the outer surface of the elastomeric body to maintain the body in position.

Abstract: A vibration isolator particularly suited to isolating a closed cycle refrigerator in a cryopump includes a bellows having o-rings made of vibration damping material secured between the corragations of the bellows. A soft damping material maintains a low spring constant and also dampens all frequencies transmitted into the isolator.

Abstract: An electrically insulated joint is provided between two fluid conduits, one of which is connected to a fuel cell stack, and the other of which is connected to a source of the fluid being circulated through the stack. The two conduits are both preferably formed from stainless steel, one of the conduits being larger than the other. An intermediate dielectric insulating sleeve is fitted onto the outside of the smaller conduit and extends beyond a free end thereof. The free end of the smaller conduit and a portion of the dielectric sleeve are expanded to the size of the larger conduit's bore and telescoped into the larger conduit's bore. The free end of the larger conduit is then shrunk down onto the outside surface of the unexpanded part of the dielectric sleeve and the smaller conduit. The resultant point has terminal cylindrical portions and an intermediate tapered portion.

Abstract: The proximate ends of spaced apart sections of duct systems for fluid media are interconnected by expansion joints having a sleeve of flexible material surrounding and isolating the flow path in the area between the sections. The flexible material consists of at least one reinforcing substrate to which surface layers of a media resisting material having a degree of elasticity are fused and bonded. Each substrate in one embodiment consists of two series of strands oriented to present a criss-cross pattern with the strands of both series diagonally disposed with with respect to the flow path when the material is formed into a sleeve. In another embodiment, there is an additional series of strands which are longitudinal.

Abstract: For decoupling an exhaust system while suppressing or damping motion and cutting down noise as far as possible, a flexible joint or articulation for the exhaust system of a motor vehicle has a flexible duct part with support parts joined with its ends for outer damping members. The flexible duct part is so designed that the support parts are overlapped on the outer side of the duct part forming pockets acting as housings for compacts of compressed metal wire for damping motion of the support parts in relation to each other.

Abstract: A fire damper assembly, used in a heating, ventilating and air conditioning system, includes a sheet metal outer frame circumferentially surrounding a commercially available, rectangular fire damper. Angle iron retainers mounted interior of the outer frame and front and back of the fire damper retain the fire damper along the depth of the outer frame. The outer frame is intended to be sealed directly or in a sealed duct in a fire resistant wall opening or penetration provided for passage of air of the heating, ventilating and air conditioning system. The outer frame has a height and width sufficient to accommodate the height and width of the fire damper plus the required thermal expansion of the fire damper to insure its proper operation under the heat or increased temperature of a fire. The angle irons close the thermal expansion spaces to passage of air and fire.

Abstract: Flexible joint means for fluid conduits comprises an outer tubular member, an inner tubular member having an end portion positioned within the outer member and a bearing assembly acting between the outer and inner members. The bearing assembly comprises first and second bearings each of laminated construction comprising interleaving layers of elastomeric material and reinforcement material. The bearings are disposed on opposite sides of an annular collar associated with an inner member and act between the collar and a pair of axially spaced annular flanges associated with an outer member. Collar and flanges extend axially and radially such that one bearing is disposed radially inwards of the outer bearing. The radially inner bearing includes elastomeric material having a higher modulus of elasticity than the elastomeric material of the outer bearing such that the bearings have substantially similar axial stiffnesses.

Abstract: Flexible bellows are utilized between two systems, such as a pumping system and a process station, to partially absorb system vibrations and to compensate for misalignment between the systems. It is common practice to either clamp a rigid spacer between flanges of the two systems (FIG. 3B) to separate them from each other, or to maintain the bellows in unsupported relationship between these systems (FIG. 4B). In the former bellows arrangement, the rigid spacer transmits vibratory energy between the two systems and the bellows tends to function as an undamped or underdamped unit that resonates at its own frequency to create additional vibratory energy, transmitted to the systems. In the latter, unsupported bellows arrangement (FIG. 4B), the pressure differential prevalent between the fluid flowing through the bellows and ambient normally causes extension or retraction of the bellows and resulting misalignment problems.

Abstract: The invention pertains to a vibration attenuating fluid coupling characterized by its ability to soundproof fluid conduit systems and permit limited misalignment between interconnected conduits without leakage. In particular, the structure of the invention may be utilized with existing couplings and fluid systems with minor modification. The coupling comprises a housing receiving the inner end of a nipple which supports a flange. An annular elastomeric ring within the housing imposes an axial force upon the nipple, and an inner bearing complimentary in configuration to existing housing surfaces and oriented therein by such surfaces is engaged by the nipple inner end and includes an elastomeric material wherein elastic material, alone, supports the nipple relative to the housing for absorbing vibrations and permitting misalignment.

Abstract: A garbage disposer for mounting under a sink and adapted for optional connection with a dishwasher drain line. An upper housing for a garbage disposer with a sink inlet passage and dishwasher inlet spout disposed in vertical parallel alignment, with an integral cap for the spout closing the inlet end thereof, which cap is readily removed when a dishwasher is to be operated with the garbage disposer.

Abstract: Disclosed is a flexible coupling whose operative interposition between communicating members affords the relative relationship of 360.degree. rotation, axial alignment, misalignment, offset relationship, articulation at different angles axially. The flexible coupling is self-cleaning and acts as a vibration dampener. The flexible coupling has upstream and downstream collars which mount a U-shaped annular flexible member whose one end portion is fixed to the upstream collar between an annular flange and keeper plate and whose other end portion is freely retained on the downstream collar between annular flanges.

Abstract: A system for filtering vibrations from an internal combustion engine towards an exhaust pipe wherein an interruption is arranged on the latter and as close as possible to the source of the vibrations, the ends of the pipe facing the level of the interruption having the shape of a spherical area, a composite joint between these ends being then re-established via a first internal, cylindrical element with beveled ends fitting together within the preceding areas and a second external element supported by the central part of the latter while its ends hold tightness segments against the upper part of the spherical areas, at least one space being provided between these two elements allowing the placement of a ring, two envelopes being in addition crimped onto the widened ends of the second element supported on the spherical areas, thus holding the composite joint in place.

Abstract: An arrangement for attaching a tank fitting to a plastics fuel tank for motor vehicles. Through an outwardly directed pipe stub in the tank wall the fitting is inserted and fastened to the tank. Between fitting and pipe stub an elastic sleeve is clamped whose inner end by means of an inner clamping means sealingly engages against the fitting, and whose outer end by means of an outer clamping means surrounds the pipe stub. The inner clamping means is part of a stiffening member bearing against the inside of the pipe stub by means of an upper support ring. The outer end of the sleeve is folded over outwardly and pressed sealingly against the pipe stub by means of the outer clamping means and aganist the reinforcing action of the stiffening member. The arrangement enables a simple and sealed attachment of heavy tank fittings, e.g. a fuel pump.

Abstract: A pulsation-absorbing flexible pipe being provided with a throttling material at each end of connection metal fittings arranged at both ends of a flexible pipe, and a throttling means, which has a bore of a diameter smaller than that of the flexible pipe, inside of a bore in the flexible pipe, thereby efficiently absorbing pulsation of a pressure fluid discharged from a pressure fluid-feeding device in a pressure fluid device.

Abstract: In a coupling unit having first and second parts connectable and disconnectable with each other, the second part is provided with an outer ring-shaped groove which extends through the wall of the second part along the circumference. The first part has a corresponding recess or groove. The parts are connected by at least one locking ring. The locking ring is located in the groove of the second part and has at least one indentation which extends through the groove and interacts with the recess in the first part.

Abstract: A flexible pipe coupling comprises an annular housing, a nipple member partially submerged in the housing, and an annular elastomeric seal assembly between the nipple and the housing. The nipple is insulated in order to reduce the heat flow to the elastomeric seal from the material falling to the pipe coupling. The pipe coupling can also comprise a means, e.g., an annular ring, for bridging the nipple and housing to provide a constant inside diameter for the coupling. The means can also be insulated in order to aid in reducing the heat flow to the elastomeric seal.

Abstract: The invention pertains to a vibration and sound isolator for pressurized conduit systems, such as refrigeration systems, capable of absorbing torsional and bending vibrations without fluid leakage. An annular cylinder casing defines a chamber receiving a tubular piston member having a head located within the chamber. The chamber is axially defined by a pressure face wall at one end, and a reaction wall at the other end. An annular elastomeric seal bonded to the piston head and reaction wall is compressed by fluid pressure acting upon the pressure face wall and piston head increasing the elastomer's resistance to fluid permeability. The axial dimension of elastomer intermediate the piston head and reaction wall permits torsional deflection between the cylinder and piston members about an axis coincident with fluid connection means defined upon the members, and radial clearance between the piston stem and elastomer permits related angular deflection of the members while maintaining a sealed relationship.

Abstract: An acoustically mounted valve assembly controlling the flow with respect to a tank. The purpose is to eliminate noise. An elastomeric or rubber ring is provided around an inlet pipe and is secured to the tank wall by a spud. The elastomeric ring has an untionsioned annular part which carries a mounting ring which supports the inlet pipe and the valve assembly. The mounting eliminates or reduces noise to a minimum and prevent the tank from acting as a drum.

Abstract: A flexible pipe line joint having an annular housing with a central cavity in which a nipple is partially submerged. The nipple has a flared end on the submerged portion to the inner surface of which an elastomeric ring is adhered. The ring is internally contoured spherically with reference to a common center point spaced from the flared end and located on the longitudinal axis of the joint. An elastomeric body has an assembly of embedded concentric spherical rings and is adhered to the outer surface of the flared end. The spherical rings are contoured and positioned in symmetry to the common center point. A collar secured to the housing encircles the nipple and engages the outer surface of the elastomeric body to maintain the body in position. Support structure secured to the housing has an outward facing spherical surface mating in sliding relation with the internal surface of the first elastomeric body.

Abstract: For interrupting the transmission of vibration along a conduit, e.g., a pipeline or silencer shell, while structurally connecting the parts together, a vibration damping device is interposed in the conduit, the vibration barrier/structural connector comprising a series of spaced washer-shaped plates with vibration damping cushions sandwiched between adjoining plates, the plates being fastened together in couples alternately at their outer and inner peripheries to provide a multiple cantilever connector between the portions of the conduit to which the end plates of the connector are secured.

Abstract: A gas valve and mixing tube for a gas burner are held frictionally together by a plastic bushing which fits around the hood of the valve and within the upstream end of the mixing tube. The body of the bushing and a flange thereon maintain adjacent parts of the valve and tube out of metal-to-metal contact to eliminate rattling. The bushing is short enough not to interfere with the primary air inlet opening. Interior ribs in the bushing permit articulation of the valve and tube to facilitate installation in cramped quarters. The bushing and internal ribs are tapered to facilitate assembly of the three parts.

Abstract: A sound-absorbent and/or vibration-damping flexible pipe coupling wherein the end portions of an elastic compensator hose are secured to spaced-apart flanges which can be bolted to the flanges of pipes or analogous conduits for a fluid. The hose is surrounded by two pressure-transmitting rings one of which is nearer to the one and the other of which is nearer to the other flange. The rings have openings for fasteners including a first set of fasteners which secure, without contacting the other ring, the one ring to the other flange and a second set of fasteners which secure, without contacting the one ring, the other ring to the one flange. A sound-absorbent and/or vibration-damping cushion is interposed between and secured to the rings. The cushion, which is compressed by the two rings when the distance between the flanges increases, may consist of a single rubber ring, of several cylindrical rubber-metal inserts, or of several metallic coil springs.

Abstract: A mount for a carburetor which reduces the transfer of heat and vibration from an engine which includes an elastic support ring interposed, with a load carrying capacity, between the mounting flanges of the engine and the carburetor and a neck portion of the carburetor to eliminate metal-to-metal contact. The neck portion has an axial length sufficient to receive the carburetor mounting flange while the elastic support ring is assembled.

Abstract: The invention relates to a damping device which comprises an elastic sleeve over-moulded on two coupling end members provided with transverse grooves for the anchorage of this latter, the transverse grooves opening into a section of the internal bore of each end member having a diameter greater than the diameter of the remainder of said bore.

Abstract: At the output end of a piping system, components subject to vibration and ock are isolated from components at the input end of the system. The isolation is achieved by a clamping arrangement in which a plurality of deformable isolation material components are inserted between the two ends. The system operates under a high fluid pressure and is arranged to enable the high pressure to act upon the isolation material to assist in forming a seal within the flow path.