Abstract: A hub assembly for use in the filtration of fluids comprising a hub with a tapered bore extending therethrough, and a filter membrane in the bore. The filter membrane has a first portion extending across the bore and a second portion extending from the first portion in substantial contact with the hub around the bore. Means within the bore presses the second portion into tight contact with the hub around the bore to secure the filter membrane therein.A method of fabricating a filter membrane and inserting the same into a hub having a bore extending therethrough, the bore being substantially circular in cross section and tapered to define a large opening at its proximal end and a small opening at its distal end, includes forming a substantially flat, circular filter membrane from a filter medium, the membrane having a diameter larger than the large opening of the bore.

Abstract: A method is disclosed for the production of flexible pipes having a socket in which a socket element is fixed in overlapping relation to one end portion of a fabricated flexible pipe. The end portion of the pipe is elastically reduced in diameter and the socket element overlapped or telescoped with the reduced end portion. The socket element is then fixed to the reduced end portion of the pipe firmly under elastic stress when the reducing pressure is released. An elastic member may be interposed between the end portion of the pipe and the socket element at the overlap.

Abstract: A method of making a tuned viscous torsional vibration damper assembly of the type having supporting disk means with a radially outwardly extending circular body and a radially inner hub portion adapted to be secured to a rotary member such as a crankshaft subject to vibrations to be damped by the damper, the body being received concentrically within a radially inwardly opening annular working chamber of an annular inertia mass, a viscous damping medium in said chamber between shear film spaced working surfaces of said body and said inertia mass, and said inertia mass having concentric annular grooves at opposite sides of and facing axially toward said body contiguous to the opening from said chamber, with elastic tuning spring, spacing and sealing rings coupling opposing surface areas of said inertia mass in said grooves and opposing surface areas on said body, comprising assembling the rings in the grooves, placing concentricity maintaining shoulder means across radially inner open sides of the grooves wher

Abstract: A typical pinhole leak that has occurred along the flue pipe of a water heater is quickly and effectively repaired by employing a spring-tempered, sealant-coated cylindrical repair section that is first coaxially positioned inside the flue pipe in a compressed position and that is subsequently triggerably released to spring to an expanded position whereby a permanent sealant layer is formed between the cylindrical repair section and the flue pipe.

Abstract: Thermal insulation comprised of fiberglass boards or batts having relatively small diameter fiberglass fibers either bound or unbound is wound about the lading container pressure vessel of a tank truck, trailer or rail car. As the insulation is wound about a longitudinal section of the vessel, the insulation is squeezed from its free height to a lesser height to increase the density of the insulation and also permit passage of the outer jacket. The squeezing is preferably accomplished by wrapping each layer of insulation with a continuous wire mesh. The tension is maintained with the use of a long rod intertwined in the wire mesh, which rod is withdrawn after a section of the outer jacket is over a section of the vessel thereby permitting the insulation to expand and substantially fill the void between the vessel and outer jacket.

Abstract: A sleeve member for positioning between the fastener and work pieces within aligned holes through the work pieces. The sleeve member has a tubular side wall with outwardly directed bends formed therein which are partially flattened out during the assembly of the fastener in the work pieces so that the natural resiliency of the sleeve member compensates for discrepancies in the holes and fastener and which may be coated with a sealant prior to assembly so that the bends act as reservoirs for the sealant to insure sealing of the fastener joint.

Abstract: The disclosure generally relates to a method of joining a pipe to another pipe, or to an adjacent pipe in a series of pipes in a pipeline, the joints between which incorporate sealing means, and an apparatus suitable for use in performing the method, which basically involves forming an enclosed space at least bridging the joint to be formed and evacuating the space by a vacuum pump or ejector to produce a pressure within the space lower than atmospheric pressure to allow the greater atmospheric pressure outside the pipes to axially force the pipes together against the resistance of the means forming the sealed joint between the pipes. This function may be achieved by closing the ends of the pipes to be joined remote from the position of the joint and evacuating the space within the pipes and between the end closures.

Abstract: A resilient ring-shape rod seal is to be installed in a rod seal groove in a cylinder in position to seal against a rod as it moves longitudinally with respect to the cylinder. The inside diameter of the ring-shape rod seal is the same as the nominal outside diameter of the rod. The rod seal installation tool of the invention includes three mutually parallel pins, pivotally mounted with respect to each other and designed to fit down over the ring-shape rod seal to have two outside pins situated inside of the rod seal ring and a center pin situated outside of the rod seal ring. Means are provided to pivot the outside pins out around the center pin and then toward each other to fold the rod seal in a generally C-shape configuration whereby the rod seal and tool can be inserted into the cylinder to align the rod seal with the cylinder rod seal groove. The pins are released to allow the seal to expand toward its nominal ring shape with at least part of the seal in the groove.

Abstract: Flexible hot topping liners having improved properties comprise refractory, deformable, self-supporting, fibrous liners which have, in their dry condition, flexibility, restitution and droop characteristics within certain defined ranges. In the preferred embodiment, the extensibility and compressibility properties are also maintained within defined ranges. Flexible sealing rings for sealing the joint between a headbox and an ingot mould are also disclosed.

Abstract: An improved vibration damper for use with oscillating bodies and the method of making said damper. The damper includes an inner core member or hub, an outer inertia mass member or inertia ring surrounding and spaced from the hub, and compressible resilient damping means such as a layer of compressible elastomeric material under a limited compression and a retaining means such as a metallic band disposed between the core member and the inertia member. The damping means is chemically adhered to both the retaining means and the core member or the inertia member and the retaining means is fixed in an interference fit to either the outer peripheral surface of the core member or the inner peripheral surface of the inertia member. The damper is particularly useful for mounting on the end of a crankshaft of an internal combustion engine.

Abstract: Wire is produced from wire rod by moving the rod lengthwise through first and second cutting tools, the first of which gouges out continuous chips from the rod surface, leaving lands between the grooves so formed, and the second shaves off those lands.

Abstract: A replacement oil drain tube for interconnecting the head and crankcase on a Porsche automobile engine permits the repair of such engines through a replacement of standard, single piece oil drain tubes with a telescoping oil drain tube assembly, eliminating the requirement that the cylinder head be removed from the engine for such repair.

Abstract: A resilient insert for explosively expanding a tube in a tube sheet having a bore which receives an explosive cord, a counter bore, a sleeve which is fastened to the bored end of the insert to position the tube and a positioning wafer which positions the explosive cord within the insert.

Abstract: A wire helix having adjacent turns normally spaced so that the wall of a flexible tubing will be pinched closed when placed between them has at least one pair of turns spaced far enough apart to allow the tubing to pass between them without being pinched; valving action takes place when the tubing is twisted around the helix to move it between the unobstructed position to the pinched position. In a modified form, there are two locations in the helix where the tubing may pass outwardly and then reenter the helix without being obstructed; in this form, the looped portion of the tubing lying outside the helix may be rotated about the helix in either direction to pinch it closed.

Abstract: A tool and method of using the same are provided for installing a resiliently deformable crash resistant seal between an automobile gasoline tank and filler tube, whereby the filler tube may freely slide axially with respect to the seal without disrupting the latter or rupturing any fixed connection between the tank, tube, and seal.

Abstract: A child's toy construction system, similar in purpose to "Erector" sets, is provided having reusable, distensible "rivets" instead of nuts and bolts, and a rivet "gun" to provide a feeling of authenticity in use.The system includes plates and bars to be joined together to create different structures. They are joined by use of the rivets passing through aligned holes in the plates and bars.The rivets are formed of bullet-shaped, soft distensible rubber pieces having a bore passing lengthwise through the rivet, but being closed at the leading end. The rivets have an outside diameter greater than the diameter of the holes, when the rivets are in their relaxed, undistended condition, and will, therefore, when not distended, expand to fill the holes and secure the pieces together. Their diameter is less than that of the holes when they are longitudinally distended. The base of the rivets is larger than the holes and includes an undercut gripping shoulder.

Abstract: An insulated door for refrigerators, freezers or similar cabinets where the inner and outer door surfaces are normally subjected to substantially different temperatures. The main door components, the door face and drum, are interconnected without the use of threaded fasteners such as screws or bolts. Instead a hardened, foamed in situ insulating material forms the main interconnection between the door face and drum, securing them together but yet accommodating thermally induced, relative movement between the two components. In constructing the door S-shaped retainers are used which receive in their oppositely opening loops the edges of the face and drum. Temporary spacers are then interposed between the face and drum edges for the foaming operation.

Abstract: A filter press having a number of filter plates, each of which includes a center hole, with a filter cloth hanging over each filter plate. The filter cloths include a corresponding center hole, and a flexible coupling member having a tubular stem with a flanged base, wherein the flanged base is positioned around the hole on one side of the cloth. The tubular stems are inserted within a coupling cylinder which is positioned within the hole of the filter plate. A method is described for hanging the filter cloths onto the filter plate by inserting one of the stems into one end of the coupling cylinder, and then inserting the cylinder into the hole in the filter plate. A tool is then used to reverse the stem of the coupling member of another filter cloth, and then the same tool is removed permitting the restoration of the stem while positioning it within the other end of the coupling cylinder.

Abstract: A suction wand having a weighted, resuable handle in cooperation with a disposable suction conduit, the suction conduit having a suction tip at one end and adapted to couple with a suction tubing at the other end. The weighted handle imparts a pre-selected weight and feel to the wand and is selectively reusable with a variety of disposable suction conduit systems.

Abstract: An aerosol dispenser including an outer casing, a product containing bag within said casing and sealingly secured thereto at a point of interconnection between the casing and a cap carrying a dispensing valve. Pressurized propellant is disposed between the casing and the bag.

Abstract: A method of accurately centering and securely bonding a rod in a tubular shaft. Concentric alignment of the rod in the shaft is assured by positioning two resilient sealing rings between the rod and the shaft which act to center and hold the rod in proper geometric relationship with the shaft. While the invention is generally useful wherever secure bonding of a male fitting in a tubular shaft is desired, it is particularly applicable where accurate centering of the fitting in the shaft is necessary, such as in the bonding of a universal joint fitting in a drive shaft.

Abstract: A compound billet for extrusion by isostatic liquid pressure which has a core and a casing with a gap therebetween is produced by applying a sealing ring with greater thickness than the gap between the core and the casing around the rear end of the core, then inserting the core into the casing, and pressing the sealing ring to stick in the gap between the core and the casing so that the sealing ring and/or the casing are deformed. The rear end of the casing is beveled inwardly.

Abstract: An nth derivative mandrel for use in assembling bushings having an annular elastomeric insert radially compressed between a pair of concentric sleeves. The mandrel profile is the nth time derivative of velocity and, preferably, either constant velocity, n = 1, or constant acceleration, n = 2. The mandrel profile may also be a composite of two or more time derivatives along its length.

Abstract: A pair of elongated anchors possessing a Z-shaped cross section each have one flange embedded in one side of an elastomeric block and its other flange welded to the metal surface of the truck box to be protected. The sides of each block are angled so as to form a converging slot between blocks. An elongated strip, also of elastomeric material and somewhat softer than that of the blocks, is pressed into each slot to create a generally flush relation with the blocks.

Abstract: A method of fixing the end portion of a line such as for example, a wire or the like, to a reel by plastically bending the end portion of the line into the form of a U-shaped recession extending transversely to the longitudinal direction of the line, wire or the like and depositing the deformed end portion into a slot provided within the reel.

Abstract: A method and apparatus for assembling an apertured insert onto a rim extending from the end of a metal container and surrounding an opening therein is disclosed herein. The method contemplates inserting an expandable support member through the aperture in the insert and moving the member into engagement with the inner surface of the end of the container surrounding the opening. The insert is then forced onto the rim of the container while the end panel is supported by the support member. The apparatus consists of a first member for gripping the insert and a second member adapted to pass through the aperture in the insert with expandable means on the second member for extending beyond the periphery of the opening in the container end wall. The apparatus also incorporates drive means for moving the members and the expansible means in synchronized relation to each other.

Abstract: This invention relates to the replacement of seals in ram type blow out preventers and is especially useful for replacing such seals where the well head is at a considerable distance from the drill head, for example on the sea bed. The method comprises removing a seal from a first blow out preventer ram in situ at the lower end of the well riser, and inserting a replacement shoe of smaller internal diameter itself fitted with a seal within the seal recess of the first ram.There is disclosed a shoe for a ram type blow out preventer comprising a part annular member having a part cylindrical outer surface provided with a ridge for receipt in a recess in a blow out preventer ram, means for indexing and securing the part annular member relative to the blow out preventer ram, and a seal receiving recess in the radially inner surface of the part annular member.

Abstract: A hermetic closure cap of resilient thermoplastic material constructed so as to be removably securable in an aperture made in a rigid sheet.This cap is retained by a normally non-deformable but laterally retractable part pressing against the edges of the rigid sheet defining the aperture and which cap is maintained in position before opening by a removable locking element which is inserted into a slot in the cap that is of similar cross-section to that of the locking element.The sealing cap thus designed can be used, for example, in cans containing a beverage under pressure.

Abstract: A medical needle holder assembly comprising a generally tubular needle holder, a filter element constituted by a wad of a lengthy filament yarn of synthetic resin and a generally tubular filter retainer adapted to be received in the needle holder with the filter element fitted in the needle holder.

Abstract: Apparatus is provided for shaping a generally elongate strip of lubricant wicking material and placing it into a component for a dynamoelectric machine. In this apparatus, means is provided for receiving the strip when it is introduced thereinto, and means associated with the receiving means is operable generally for moving the strip therefrom and converting the shape of the strip into a predetermined configuration. Means is provided for predeterminately locating the dynamoelectric machine component on the apparatus with respect to the moving and converting means, and means is operable for displacing the strip generally in its predetermined configuration from the moving and converting means into place within the dynamoelectric machine component.

Abstract: An assembly tool for closed, self-locking retaining rings includes an extensible and retractable, tubular, centering sleeve for centering the ring on a ram recessed relative to the sleeve. The sleeve is carried by a housing in telescoping relationship with the ram. One end of the sleeve is fashioned with a plurality of circumferentially spaced guide slots bounded by circumferentially spaced rigid guide and centering fingers that are operable to center the ring by engagement with the ring body and to pilot the tool by engagement with the member to which the ring is to be assembled. Adjustable stops may control the position of the ring in an assembly in axial relationship to the parts of the assembly.

Abstract: A method of making a thermal barrier construction element or shape, wherein a single metal construction element of a predetermined design or shape having a suitable opening therein for receiving an insulating member, is extruded in a normal manner, the insulating member is inserted in the receiving opening of the metal extrusion, the metal extrusion is crimped or stitched whereby the insulating member is mechanically locked in position in the metal extrusion, and a portion of the metal extrusion is subsequently removed therefrom to provide the thermal barrier construction element.

Abstract: A process for placing a preformed fitting in a groove located at the periphery of a bore and a device for use in this process. An obstacle with an external diameter slightly less than the diameter of the bore, is positioned immediately beyond the groove. A fitting, which is kept deformed so that it is circumscribed by a circle of diameter which is at most equal to the diameter of the bore, is introduced into the bore and is brought to a right angle with reference to the groove. The deformation of the fitting is then relieved so that the fitting is introduced into the groove. The invention can be used for manipulation and placing of toric pieces made of deformable plastic material.

Abstract: A Hooke's joint comprises four bearing cups received in openings in respective yoke arms and retained therein by respective retaining elements. At least one retaining element associated with each yoke has radially-projecting fingers which terminate in cutting edges and which are seated in a groove cut in the wall of the corresponding opening by rotation of the retaining element. There is also described a tool for contracting the retaining element to enable it to be inserted into the opening and for rotating the retaining element.

Abstract: Apparatus for inserting a relatively hard seal ring into a circular groove with a restricted opening, comprising an annular funneled chute formed by inner and outer annular members and an intermediate push ring on which they are slideably mounted. The outer member may be retracted against springs whereby the seal ring may be placed over a conical surface of the inner ring.

Abstract: A method of filling a pressurized package, and apparatus therefor, is described in which a unitary valve body is aligned with a container neck, fluid under pressure is introduced through the neck and around the valve and then the valve is forced into the neck to seal the container, the valve having a body portion preformed to engage in a neck portion with interference, including rib and groove engagement, and the neck portion having a smallest diameter to depth ratio no greater than 5:1, and the valve body portion being long enough to extend through the neck to bulge into the container with the internal pressure of the container acting inside the valve to force the valve body portion radially against the neck portion.

Abstract: This upstroke-cushioning expansible strut consists of a spring-pressed hollow upper inner arm having on its lower end a piston head reciprocable within a roughly cylindrical hollow lower outer arm, the former being pivoted to an automobile rear hatch while the latter is pivoted to the lower part of the automobile body. Mounted between the lower arm and the upper arm is an elongated hollow spool-shaped internal seal which also guides the upper arm as it is propelled upward by the lifting force applied by the operator, assisted by internal springs. The air is allowed to escape gradually through bleed orifices until the upper arm nears its fully extended position, whereupon the release of the air is halted by the covering up of the orifices by the internal seal when said orifices reach said seal, thereby cushioning the impact which would otherwise occur between the piston head on the lower end of the upper inner arm and the upper end of the lower outer arm. The internal seal also acts as a resilient stop.

Abstract: A detachable sun panel for the roof of an automobile consists of a transparent panel adapted to be supported on a resilient molding extending around the perimeter of an aperture formed in the roof. The molding is adapted to be installed in a hole cut in a conventional roof and engages the sheet metal of the roof as well as the underlying headliner. The panel carries a pair of extensions on one end which engage the underside of the molding and a pair of latches on the opposite side which may be moved into a closed position to lock the panel against the molding.

Abstract: A cover for a flask, for example a flask of Italian wine, is formed from a skirt comprising lengths of strip-like material. The skirt is arranged around the flask or around a body resembling the flask, and the lower end portions of the strips are deformed around an annular core which forms a base for the cover, the lower end portions being clamped between the inner surface of the core and a plug inserted into the core.