Abstract: A relatively impervious mechanical seal is formed between the outer surface of a tube and the inside surface of a mechanical fitting of a high pressure fluid or hydraulic system by applying a very thin soft metal layer onto the outer surface of the hard metal tube and/or inner surface of the hard metal fitting, prior to swaging the fitting onto the tube. The thickness of such thin metal layer is independent of the size of the tube and/or fittings. Many metals and alloys of those metals exhibit the requisite softness, including silver, gold, nickel, tin, platinum, indium, rhodium and cadmium. Suitably, the coating is about 0.0025 millimeters (0.10 mils) in thickness. After swaging, the tube and fitting combination exhibits very low leak rates on the order or 10.sup.-8 cubic centimeters per second or less as meaured using the Helium leak test.

Abstract: An assembly of two components comprises a male member and a female member, the latter having a shoulder, with the male member abutted against the shoulder in back-to-back relationship. The female member has a groove. The male member is worked so as to cause its material to invade at least part of this groove in plastic flow. The groove is located beside the periphery of the shoulder having the larger diameter (i.e. the outer periphery of the shoulder), so that the plastic flow of the material of the male member takes place radially outwardly. Arrangements are also provided for sealing the assembly of the two components. The invention is applicable, for example, to torsion dampers for motor vehicles.

Abstract: A method of making an injection and sampling site adapted to receive a blunt cannula. The method comprises providing an elastomeric septum, and a housing adapted to receive that septum; making a slit in the elastomeric septum; inserting the elastomeric septum into the passageway of the housing; and swaging an outer annular ledge on the housing inwardly over the septum until a septum-engaging portion of the swaging tool applies a predetermined amount of force to the septum. Before the swaging step, a pin is inserted into the passageway of the housing against the inside end of the septum to inhibit deformation of the septum during swaging.

Abstract: A tube union for coupling the ends of a pair of tubes which are butted together includes a sleeve and two swaging collars about the sleeve without other components. Grooves and lands in the sleeve mate with a tube which is deformed into the grooves as the sleeve is urged inwardly under compression. The rings are urged centrally towards the central position of the sleeve by a tool constituted by two housing members which each have several components. Torsional wrenching of the housing members screws the housing members together, causing the collars to deform the sleeve. Thereafter pins are removed from the one housing members and the wrench from the other. This permits separation of the housing members from the swaging collars. The tool can effect connection or assembly of different elements.

Abstract: A method of permanently attaching a fastening element, such as a nut or bolt to panels having a range of panel thicknesses, such as the metal panels used by the automotive and appliance industries. The fastening element includes a tubular barrel portion and preferably an annular bearing face surrounding the barrel portion. The method includes punching a hole in the panel, then plasticly deforming and drawing the panel surrounding the hole into a dome or frusto-conically shaped portion. The panel hole is thus enlarged to receive the fastener element barrel portion from adjacent the apex of the frusto-conically shaped panel portion and the bearing face is then driven against the panel, deforming the panel to a generally planar shape. The panel surrounding the hole is thereby driven against the tubular barrel portion which, in the preferred embodiment, includes radially projecting ribs, providing securement against rotation even in very thin panels.

Abstract: A rotor assembly (10, 20) for use in a dynamoelectric machine such as an electric motor has counterweights (18, 28) installed on it to reduce vibrations when the machine is in use. Apparatus (30) is for attaching a counterweight to each end of the assembly to reduce machine vibrations when in use. The apparatus comprises a support (32) on which the rotor assembly and counterweights are installed. The counterweights are installed in a predetermined relationship with the assembly so when they are attached, an unbalanced rotor assembly is produced. The rotor assembly is mounted in a predetermined position on the support. The support is indexed from a first station (S1) at which the rotor assembly and counterweights are installed on the support to a second station (S2) at which the counterweights are attached to the respective ends of the assembly.

Abstract: A method of permanently attaching a fastening element, such as a nut or bolt to panels having a range of panel thicknesses, such as the metal panels used by the automotive and appliance industries. The fastening element includes a tubular barrel portion and preferably an annular bearing face surrounding the barrel portion. The method includes punching a hole in the panel, then plasticly deforming and drawing the panel surrounding the hole into a dome or frusto-conically shaped portion. The panel hole is thus enlarged to receive the fastener element barrel portion from adjacent the apex of the frusto-conically shaped panel portion and the bearing face is then driven against the panel, deforming the panel to a generally planar shape. The panel surrounding the hole is thereby driven against the tubular barrel portion which, in the preferred embodiment, includes radially projecting ribs, forming a secure anti-rotation assembly even in very thin panels.

Abstract: A tube connector for sealing a flareless tube to a fitting having a flat sealing face perpendicular to the fitting axis. The tube connector incorporates a ferrule engaged by a sleeve mounted on the end of the tube and having a flat radial surface for engaging the fitting sealing face. The ferrule is deformable and establishes a primary wedge type metal-to-metal sealing engagement with the tube by a compression nut threaded upon the fitting. The ferrule radially bows under axial and radial compression and this deformation suppresses vibration while the shape of the ferrule end engaged by the nut increases the radial forces on the ferrule as the nut is tightened to provide firm tube support remote from the seal region. The sleeve is provided with an internal undercut adapted to outwardly flare the end of the tube to lock the tube to the sleeve, and radially support the tube end as the tube is compressed during connection.

Abstract: A method of making a threaded insert assembly for sheet material wherein a threaded insert that is a single unitary element is installed in a closely fitting hole in the sheet material with its threads occupying the hole. The sheet material around the hole on the exit side of the material is then upset into the threads of the insert in order to hold it by its threads so that it is adjustable by rotation. An unthreaded tip effectively prevents removal of the insert by back-screwing.

Abstract: A method and means for producing disks of tightly packed on-end aligned fibers wherein side-by-side filament tows are surrounded and pulled by a Chinese-finger type gripper sleeve which tightens about the tows and compacts the filaments as it is pulled. The gripper sleeve and filament assembly is further compacted by being pulled through a draw-down die and into a tube surrounded by a backup casing. The highly compacted mass of filaments with the surrounding portion of the sleeve within the tube are cut free from the external portion of the portion of the puller sleeve and the loaded tube is removed from the casing. A plurality of disks of predetermined thickness containing the desired highly compacted on-end aligned fibers are then formed by cross-sectionally cutting the filament loaded tube segment by segment.

Abstract: A connection and two step method of manufacturing is disclosed for a drive unit for a wiper arm system which consists of a wiper shaft mounted in a bore through a crank arm. The wiper shaft is formed with a groove disposed within the thickness of the crank arm and material from one surface of the crank arm is displaced to form an annular recess which causes crank arm material adjacent the groove to be radially displaced into a groove formed in the wiper shaft to form an axial holding element. The radial distance R1 of the recess from the crank arm bore is substantially equal to the axial distance A1 of the groove below the one crank arm surface to facilitate the extruding process. Knurled areas on the shaft on either side of the groove are press fit into the crank arm bore as a first step in assembling the shaft to the crank arm, bringing a flange into abutment against the other surface of the crank arm.

Abstract: A speed sensor tone wheel has a plurality of serrations formed on an inner periphery for engagement with an axially extending annular surface formed on a wheel bearing seal support. The tone wheel is mounted on the support and an outwardly facing surface of the serrations is coined to force the inner ends of the serrations into contact with the annular surface to prevent relative rotation between the tone wheel and the support. Tabs can be formed in the outer periphery of a radially outwardly extending flange of the wheel bearing seal support for extending through open spaces between the serrations and engaging a surface of the tone wheel to trap the tone wheel between the support flange and the tab. Alternatively, an indentation can be formed in the flange to project into an associated one of the serrations.

Abstract: Fasteners, such as bolts, are normally utilized to provide an arrangement to secure two members together. When working forces are applied to the assembled members trying to tear them apart, the size of the bolts and the ability to apply the proper torque to the bolts on the job site become limitations. In the subject arrangement, a fastener assembly is provided having a hollow cylindrical pin with an enlarged portion at one end and a plurality of ridges and grooves at the other end. A hollow cylindrical shear ring, having a chevron shaped cross-section taken along its longitudinal axis, is placed, during assembly, in intimate contact with the plurality of ridges and grooves. A hollow cylindrical compression ring is placed, during assembly, in contact with the hollow cylindrical shear ring.

Abstract: A method for making a low pressure cartridge for liquid filtration, particularly of minerals from drinking water, comprises locating a pair of substantially identical end cap members telescopically on opposing ends of a tubular member. The end cap members are coupled to the tubular member mechanically by interference between four circumferential rings raised from an inner surface of each of the end caps and like numbers of circumferential grooves on a facing surface of the tubular member. O-rings between the telescoped members provide further fluid sealing and increased mechanical coupling, if desired. Different axial spacing between different adjoining pairs of rings assure axial alignment of the end caps with the tubular member during assembly.

Abstract: A fitting for attachment to a tube by external swaging is disclosed. The fitting includes an outer surface that fits within the dies of a swaging tool, and an inner surface that includes a plurality of axially spaced annular grooves that bite into the tube upon swaging. A reinforcing ring surrounds the outer surface of the fitting in the area of the annular grooves to provide reinforcement. The fitting also has an outer end with a special double tapered configuration such that, after swaging, the tube and inner surface of the fitting in the area of the annular grooves forms a wedge that equally distributes the load and increases the tube retention capability of the fitting. The fitting also includes a tapered shoulder for positioning the fitting within the dies of the swaging tool in a reliable and repeatable manner, and further includes tapered axial grooves on the inner surface of the fitting for preventing torsional movement between the fitting and the tube after swaging.

Abstract: A composite structure is manufactured by joining a first material, preferably made of a magnetically permeable material having a first joining surface in which a recess having an overhang surface is formed, to a second material, preferably made of an electrically conductive material having a second joining surface to be joined to the first joining surface of the first material. On the second joining surface is integrally formed a protrusion having an outer configuration substantially corresponding to the inner shape of the recess. The first and second materials are firmly mechanically joined to each other by, for example, a casting method, a rolling method, a pressing method, or a method utilizing plastic flow of the second material.

Abstract: A method of cladding a reduced diameter portion of a cable wherein the reduced diameter portion is created by grinding the external surfaces of the cable. The cladding is placed around the reduced diameter portion of the cable and is likewise reduced in diameter by rolling, hammering, or other external force. In this manner, a cable cladding can be accomplished without adversely effecting the flexibility of the length of cable.

Abstract: A water aerosol or fog-generating system comprises a pipe having a plurality of atomizing nozzles threaded to the walls thereof. The pipe has thin walls made from an alloy, preferably stainless steel, with nozzles affixed at various points along the piping. A plurality of pilot holes are provided at each nozzle location and the edges of each pilot hole are deformed inwardly by a punch so that more surface area is provided for threading the walls of the pilot hole. Preferably, the pilot hole has been reamed after punching and before the threads are made. An atomizing nozzle is mated with the threads on the punched and reamed hole. Seals are to be placed between the nozzle and the exterior piping surfaces.

Abstract: A process for the production of an elongated composite member of circular cross section, comprising producing a hollow metal tube having an inside diameter, inserting in the hollow tube an elongated core of circular cross section of a light-weight, tough and ductile material having an outer diameter substantially smaller than the internal diameter of the tube, and reducing the diameter of the tube until said tube is firmly bonded to the outer surface of the core. Thereafter, the diameter of the tube and core together is reduced. The core is of aluminum and the tube is of copper alloy. The composite thus produced is formed into a jewelry chain and then gold plated.

Abstract: An improved method and joint structure are provided for assembling a self-clinching fastener to sheet material, particularly thin sheet metal, in which an aperture and a peripheral flange are formed in the sheet metal; thereafter the shank portion of the fastener is inserted into the flange followed by clinching the fastener to the flange to secure the assembly. The sheet metal aperture and peripheral flange can be fabricated in a single work station in which the fabricating tooling punches the sheet metal aperture and extrudes or shapes the peripheral flange between a pair of forming dies. Assembly of the fastener joint with the flanged metal is performed in a second work station in which the fastener shank is inserted into the flange and then the head portion of the fastener is driven into the flange material to begin the clinching step.

Abstract: A headless rivet is disclosed as made from steel or suitable material that provides superior compressive strength compared to conventional rivets and to that of a material to be riveted together and of a height or axial thickness equal to the sum of the materials to be riveted, the rivet having flat end surfaces and a shoulder interposed therebetween with curved neck portions extending from said shoulder to said flat ends. The curved neck portions have a predetermined radius and a predetermined depth of concavity determined according to the height of the rivet. Another embodiment discloses a rivet having ridges interposed between the shoulder and the flat ends including respective neck portions extending from said shoulder to said ridges to said flat ends.

Abstract: An electromagnetic fuel injector suitable for use in an automotive engine has a cylindrical yoke constituting a body of the fuel injector, a solenoid coil and a stator core fixedly received in the cylindrical yoke, a movable core adapted to be attracted by the stator core, and a movable valve responsive to the movable core so as to be moved into and out of contact with a fuel injection valve seat in accordance with the balance of force between an electromagnetic force produced by the solenoid coil and a force produced by a spring received in the stator core. The stator core is coaxially received in the cylindrical yoke with a portion of the material of either one of the stator core and the yoke being plastically deformed into an annular groove formed in the opposing surface of the other of the stator core and the yoke. In consequence, the stator core and the yoke are coupled to and held on each other by the contracting force produced by the plastically deformed material in and around the annular groove.

Abstract: The invention relates to the connection of a hub with a hub disc for a clutch disc by a plastic deformation operation of the hub, the hub is formed of heat-treatable sintered steel.

Abstract: An improved structure for a clutch brake is disclosed. Powdered metal, such as powdered steel, is initially pressed into a preform having a desired configuration for each of a pair of opposed covers for the clutch brake. The configuration of the outer surface of each of the preforms includes a plurality of embossed segments, which alternate with non-raised areas, arranged in an annular array. The embossed segments of the covers are the portions thereof which are frictionally engaged during use. Each of the segments is defined by inner and outer circumferentially extending sides connected by a pair of generally radially extending ends. The intermediate portions of both of the ends can be curved circumferentially inwardly toward one another to form a concave region. The covers together form an internal cavity in which inner and outer brake washers are disposed.

Abstract: A method for assembling bearing rings in an elongated sleeve member consisting of the steps of forming a roller shell with three sections of varying wall thicknesses separated by angular circumferentially extending shoulders, deforming the shoulder between the middle section and one end section to form a ring-shaped radially, inwardly directed projection by axial displacement of the shoulder. A bearing ring is inserted in the interior of the shell member so that one axial end face engages the first radially oriented projection formed and deforming the shoulder between the middle section and the other end section to form a second radially inwardly directed projection by axial displacement of the shoulder which confronts the opposite axial end face of the bearing ring.

Abstract: An automotive shock absorber including a working cylinder, an outer cylinder mounted coaxially about the working cylinder, a piston rod attached to a piston slidably carried within the working cylinder, and a rod guide engaged with the outer cylinder for locating the piston rod coaxiallyl with the working and outer cylinders includes a unitary striker plate for maintaining engagement of the rod guide with the outer cylinder, wherein the striker plate comprises an annular ring formed from the outer cylinder and extending radially inwardly from the outer periphery of the outer cylinder with the annular ring having a U-shaped cross section oriented such that the legs of the U-shaped section lie generally perpendicular to the axis of the outer cylinder.

Abstract: A small metal member (50) is secured to a surface (32) of a plastic member (30) by lock tabs (54) bent into a recess (34) in the surface (32), and the plastic material of a central boss (38) in the recess (34) is bulk deformed over ends (68) of the lock tabs (54) forming a recessed joint (70).

Abstract: A fastening system including a two piece swage type fastener including a pin and a collar adapted to be swaged into lock grooves in the pin and in which the lock grooves are helical and with the collar having a limited female thread which is threadably engageable with the helical lock grooves for variably clamping work pieces to be secured prior to swage, with the collar thread being deformable in response to a relative axial load between the pin and collar at the initiation of the swage operation but prior to swaging and in which the lock grooves are shallow and have a ratio of (h/Du).times.10.sup.2 of four (4) or less and in which the lock grooves have a simulated streamlined root contour, with the collar having a wall thickness defining a volume of material sufficient to provide overpacking of the shallow grooves of around 16%, and with the pin and collar materials having ultimate shear strengths in a ratio of around 1.8:1 to 2.

Abstract: A lockring tube joint is described where the end portions of a pair of interfitting tubes are joined by a lockring, wherein the lockring can be installed with less force than prior lockrings and, despite lower installation forces, the tubes are securely held together. The lockring has a front section whose internal surface is tapered, a center section with a cylindrical inner surface of the same diameter as the smallest diameter of the front section, and a rear section forming a push surface for receiving forces to push the ring onto the tubes. The center section is relatively long and thin. As the lockring is pushed onto the interfitting tubes, the front section of the lockring encounters resistance to forward movement, while the center section section of the lockring is longitudinally compressed. The longitudinally compressed center section elastically grows in diameter, which avoids high friction contact with the outermost tube.

Abstract: A concept for providing bands or rings which may be quickly and securely attached to plastic pipe as shown. The bands provide well anchored annular external flanges along the length of a section of pipe to facilitate coupling and sealing or to provide means for locating a pipe with reference to structures or devices. Rings that may be installed over the free end of a pipe and rings that may be opened to assemble over an already installed and coupled pipe are shown. Simple tooling for setting the ring is shown. This tooling is easily used in the field and in limited space, and may be hand operated.

Abstract: A method of joining first and second piping materials with a C ring. The C ring has a sharp annular rim along the internal peripheral surface thereof on the pipe end side, and the C ring also has a cross-section such that a first cornered edge formed along the internal peripheral surface of the C ring on the annular gasket side and a second cornered edge formed along the external peripheral surface of the C ring on the pipe end side each define an acute angle. An end portion of the second piping material is inserted into the socket and into the C ring. The piping material are held by means of a pair of clamping jaws each having a tapered plane of clamping action opposing each other, and the jaws are then moved closer to each other along the axis of the pipes, respectively, for pressurizing the piping materials to effect plastic deformation of at least the maximum diameter portion at the end of the first piping material to deform the gasket and clamp the piping materials together.

Abstract: Muffler apparatus for reducing both sound and particulates from exhaust gases from an engine. The apparatus includes resonating chambers, flow distribution structure and a cellular ceramic core filter module. Filter regeneration mechanism includes a heating element for heating the carbon on the inlet end of the ceramic core to combustion temperature. Particulate ignition resulting in regeneration occurs when combustion air is provided; in alternate embodiments, combustion air first flows through a preheater system. A processor unit with particular logic controls the apparatus.

Abstract: A rotatable cutting bit shield and method and apparatus for attaching the shield onto cylindrical cutting bit shafts uses an annular metal ring having the shape of an inverted dish, and a centrally located hole through the ring. The diameter of the hole is initially larger than the diameter of the cutting bit shank. Compressive pressure exerted on the annular upper and lower faces of the ring by the apparatus according to the method causes the ring to deform into a flatter, more disc-shaped structure. This deformation causes the diameter of the central hole in the ring to shrink, captivating the ring axially between larger diameter annular flanges on the cutting bit shank.

Abstract: A method of production of an electric contact including a contact base member of one metal and a contact member of another metal of hardness lower than that of the contact base member joined to the contact member at one end portion thereof, with the method comprising the steps of forming a blind hole at the one end portion of the contact base member and applying pressure simultaneously to the contact base member and the contact member after the contact member is inserted and filled in the blind hole, to thereby cause the metals of the two members undergo plastic deformation to join them together in intimate contact with each other.

Abstract: An attachment and method for axially securing a component on the surface of a shaft or bore by forming an annular groove adjacent the component and inserting a closed retaining ring within the annular groove. The retaining ring has a larger internal diameter than the diameter of the shaft or a smaller external diameter than the diameter of the bore. The retaining ring is pressed into the annular groove and plastically deformed by a tool that contacts the ring at angularly spaced portions of the retaining ring surface until the ring fills the groove without axial clearance or play. The annular groove formed on the shaft or bore has a cross section for receiving a standard commercial retaining ring or circlip. The portions of the retaining ring located between the portions that are deformed by the tool form convex portions that extend radially away from the annular groove and define a space for the insertion of a prying tool.

Abstract: A fuel atomizer in which one or more substantially recesses are formed at the distal end of a vibration amplifier member, and a part of wall material of a vibrating reed is caused to flow into those recesses due to plastic fluidity, thereby firmly fixing both the vibrating reed and the vibration amplifier member to each other.

Abstract: In an over-running clutch including a cylindrical clutch outer, a clutch inner located inside an inner periphery of the clutch outer and defining a wedge-shaped space between the same and the inner periphery of the clutch outer, an engagement member mounted in the wedge-shaped space, an elastic member of urging the engagement member in a convergent direction of the wedge-shaped space, a washer for closing the wedge-shaped space, and a cover fitted on an outer periphery of the clutch outer for fixing the washer; a method of mounting the cover comprising the steps of bending a front end portion of the cover inwardly at an acute angle, insertingly engaging the cover with the outer periphery of the clutch outer, bending back the front end portion at right angles and bending the rear end portion of the cover to fix the cover to the clutch outer.

Abstract: Method and apparatus for fastening of a sealing bellows (3) to a ball joint housing (1) in motor vehicles wherein the sealing bellows (3) has a housing end rim (16) that engages an approximately cylindrical bellows seat (11) formed on the outer rim of the joint housing defining an opening (10) through which a shank extends, and a retaining ring (5) made of sheet metal and surrounding the housing end bellows rim (16) for sealingly connecting the bellows to the housing, has an outer circumferential recess (17), is slipped onto the housing end bellows rim (16), and is then axially compressed so that its inner diameter is reduced, whereby the housing end bellows rim (16) sealingly engages the bellows seat (11) on the joint housing (1).

Abstract: A method of manufacturing wherein a first metal member is installed into a second metal member is disclosed. The first metal member is punched out of a stock into the second metal member which extrudes a slug. The combination is then placed over a flat surface and a second larger punch is applied to cause the slug to reflow back up into its original structure, but with that reflow crimping the first metal member that was punched out into a permanently attached place within the second metal member.

Abstract: The securing and sealing of a connector 10 to a pipe 12 for a hydraulic connection comprises a pre-assembly step wherein a cutting/clamping ring 34 is secured to the pipe and a final assembly step wherein the ring 34 is sealed to a connector body 14. The axial force applied by a nut 20 to the ring 34 during the final assembly step is less than the axial force applied to the ring 34 during the pre-assembly step whereby no further cutting of the teeth 40 into the pipe is permitted but sealing takes place between cooperating conical surfaces 22 and 36 of the connector body and cutting/clamping ring respectively.

Abstract: A thick-walled composite metal tubing comprising an inner tubular member made of a steel pipe and an outer tubular member made of a carbon steel pipe which are press-fitted together with integration bonding thereof involving disappearance of the boundary interface at least in part of the inner and outer tubular members, and process for producing the same.

Abstract: A metal rod having a radial flange formed at one end and space pointed projections formed on the underside of the flange is inserted through a round hole in a metal plate. The metal rod plate combination is placed in a press on a bottom die having an axial insertion hole and an annular step formation of alternate grooves and ridges on the top surface of the bottom die round the insertion hole. Under pressing force, metal of the metal plate in its region around the bottom edge of the round hole is extruded radially inwardly against the neck portion of the flanged metal round rod under the effect of the step formation on the bottom die while at the same time the projections are driven into the surface of metal plate. The resulting metal assembly exhibits substantially improved adhension and torsional resistance between the metal members.

Abstract: A small metal member (50) is secured to a surface (32) of a plastic member (30) by lock tabs (54) bent into a recess (34) in the surface (32), and the plastic material of a central boss (38) in the recess (34) is bulk deformed over ends (68) of the lock tabs (54) forming a recessed joint (70).

Abstract: A self crimping connection for inner and outer members and the method of making the same includes providing the inner member with stepped cylindrical exterior walls defining an outboard wall of reduced diameter relative to an inboard wall with an annular groove in the outboard wall; providing the outer member with a stepped bore defining an internal outboard wall and an inboard wall to slidably receive the outboard and inboard walls, respectively, of the inner member, with an annular groove in the outboard wall of the outer member; a first bushing encircling the outboard wall of the inner member and a second bushing encircling the outboard wall of the outer member, with each of the first and second bushings having a body portion and a crimp collar portion, the arrangement being such that as the inner member and first bushing are axially pressed into the outer member and its associate second bushing, the crimp collar portion of the first bushing is crimped into locking engagement into the annular groove in the

Abstract: A fluid coupling device is disclosed of the type including a valve member (41) actuated by a valve shaft (39) extending through a cover (35), the position of the valve and valve shaft being controlled by a temperature responsive bimetal coil (43). The coil has a first end (47) attached to the valve shaft and a second end attached by means of a clip (53) to the cover. The valve shaft includes a pair of axially extending nubs (61) which are axially deformed into intimate engagement with the first end of the coil to prevent movement of the first end of the coil relative to the valve shaft. The second end of the coil includes a portion (55) parallel to the cover and a portion (57) parallel to the end of the coil. Each of the clip portions includes a projection (59), and the second end of the coil is projection resistance welded to the clip portion (57), and the clip portion (55) is projection resistance welded to the cover.

Abstract: A method of producing an oil seal comprises the following steps: a slicing step in which a seal ring is sliced from an end of a tubular billet of a resin material in a predetermined axial thickness; a fixing step in which the radially outer portion of the seal ring is fixed in the support member; and a bending-out/thread-forming step in which the radially inner portion of the seal ring is bent out of the plane of the radially outer portion of the seal ring thereby forming a tubular seal lip, and sequentially after forming of this seal lip, a screw thread is formed on the inner peripheral surface of the tubular seal lip. The fixing step is conducted by a press having an upper die and a lower die, in which the seal ring is fixed in the support member.

Abstract: A packed tube of generally parallel aligned fibers is described, wherein the fibers are packed therein at densities of 60 to 100 percent of the theoretical packing density based on the fiber diameters used based on the selected fiber pitch pattern and preferably at 70 to 100 percent of the theoretical. Glass fibers which can be porous and/or hollow are preferred.

Abstract: An airspring with plastic rigid components having a specialized coupling adapted for push-in engagement of the pneumatic tubing into the airspring is disclosed. The coupling requires no threading in the plastic structural component of the airspring and is composed of an outer ring through which a coaxial annular sleeve with jaws for tubing engagement slides axially. An O-ring seals the tubing against air leaks. The airspring may be used for vibration isolation or load suspension.

Abstract: Method and apparatus effective for emplacing a ring (52) at a selected axial location of a pipe (45) by reducing its diameter and establishing a circumferential bulge (146) adjacent to the selected location and ring (52), said bulge (146) cooperatively resisting axial displacmeent thereof and being in physical conformity therewith.

Abstract: A fastening arrangement for first and second plate members whereby the plates are permanently interlocked in a flush manner. The first plate member has an open loop depending strap portion pierced therefrom adapted to be engaged in an elongated frusto-conical sectioned raised slot in the second plate member. The parts are of predetermined dimensional relationship such that upon upper and lower die members flattening the depending strap portion engaged in the raised elongated slot the plate members are permanently interlocked in a flush manner.