Abstract: The invention relates to an axially-swaged male end fitting assembly compatible with a standard 24.degree. cone flareless female fitting. The fitting may be fabricated from a sleeve and a tube that are axially swaged within a tool assembly. The sleeve includes a rounded shoulder, a partially conical nose, and a cylindrical inner surface. The inner surface includes a groove at the tip of the nose, and another groove positioned axially close enough to the shoulder to be radially deformed during axial swaging. The tool assembly includes a swaging tool, a female die and a ring die. The female die includes a tapered surface positioned and sized to preset the nose into the tube. The female die also has a surface confronting the sleeve shoulder, for controlling the amount of preset that occurs. The ring die includes a tapered surface positioned and sized to swage the shoulder into the tube.

Abstract: A connector for joining two electrical connection assemblies including first and second assembly housings, each having a generally tubular wall open at one end. The first assembly housing has a cam. A collar is slidably attached to the exterior of the tubular wall of the second assembly housing. A moveable tab on one of the second assembly housing and the collar is in axial alignment with the cam of the first assembly housing. A stop ridge on the other of the second assembly housing and the collar is aligned with the tab so that the tab contacts the stop ridge at a predetermined point and restricts axial movement of the collar relative to the second assembly housing.

Abstract: A swaging tool for swaging an axially swaged fitting for connecting tubes and pipes is disclosed. The tool comprises a housing and a piston movable in opposite axial directions within the housing. A first engaging member in the form of a U-shaped yoke is formed on the outer surface of the housing. A second engaging member, also in the form of a U-shaped yoke, is formed on the outer surface of the piston and is adapted to slide within slots in the outer surface of the housing. Both of these yokes are configured to allow either side of each yoke to engage a portion of the fitting to swage it when the yoke of the second engaging member is moved toward the yoke of the first engaging member.

Abstract: A bus coupling for connection to bus in an electrical system including a coupling having a substantially cylindrical outer surface and an inner surface for receiving the bus. A portion of the outer surface of the coupling and the bus are compressed by a swaging tool until they plastically deform radially inwardly to form a swaged connection. An anti-oxidant composition may be applied between the coupling and the bus, with an annular groove in the inner surface of the coupling accumulating any of the excess composition. A counterbore on the inner surface at one end of the coupling may be filled with a sealing material to prevent water accumulation that could weaken the connection in freezing climates. The one end of the coupling also has a smooth, curved surface to reduce the adverse consequences normally associated with the corona effect.

Abstract: A swaging tool for swaging a fitting to a tube includes a tubular housing having a first jaw unit on a first end portion of the housing and a closed cylinder at a second end portion of the housing. The closed cylinder has a port for receiving pressurized fluid. A ram is movable in opposite axial directions in the closed cylinder of the housing. A piston having a second jaw unit is located in a middle portion of the housing in engagement with the ram. A stabilizing pin is slideably received through the piston and into the ram. Bearings are located on an end of the stabilizing pin and on the ram to react the moments generated during swaging directly into the housing.

Abstract: The invention provides a reduced recoil bucking bar and corresponding methods for forming joints with rivets. The bucking bar includes a housing and a driven member movable with respect to the housing. The worker using the bar holds it with the driven member pressed against one end of the rivet. When blows are delivered from the hammer through the rivet to the bar, an appropriate reaction force is generated automatically by mechanisms within the bar. These mechanisms include at least a first pressure chamber and an exhaust port for releasing pressure from the pressure chamber to the atmosphere. By controlling the flow of air through the pressure chamber, the mechanisms within the bucking bar control the forces acting on the driven member during the recoil and rebound motions. Preferred control mechanisms include a second pressure chamber and a movable shuttle. The shuttle is initially biased in a preferred direction by a biasing element in the form of a coil spring.

Abstract: A fitting for attachment to a tube by swaging comprises a cylindrical sleeve having a tapered outer surface and an inner surface for receiving the tube. A cylindrical swaging ring having a tapered inner surface engages the tapered outer surface of the sleeve such that axial movement of the ring in a forward direction with respect to the sleeve causes the ring to apply a radial force to the sleeve to swage it to the tube. The swaging ring is locked onto the sleeve both before and after swaging by one or more protrusions on the outer surface of the sleeve which cooperatively engage an annular groove in the swaging ring. The location of the protrusions and groove in relation to the tapered surfaces on the swaging ring and sleeve is especially configured to provide smooth axial loading during swaging and increase tube retention capabilities at the conclusion of the swaging operation.

Abstract: A swaging tool for swaging an axially swaged fitting for connecting tubes and pipes is disclosed. The tool comprises a housing and a piston movable in opposite axial directions within the housing. A first engaging member in the form of a U-shaped yoke is formed on the outer surface of the housing. A second engaging member, also in the form of a U-shaped yoke, is formed on the outer surface of the piston and is adapted to slide within slots in the outer surface of the housing. Both of these yokes are configured to allow each yoke to engage a portion of the fitting to swage it when the yoke of the second engaging member is moved toward the yoke of the first engaging member.

Abstract: A fitting for attachment to a tube by swaging is disclosed. The fitting comprises a cylindrical sleeve having a tapered outer surface and an inner surface for receiving the tube. A cylindrical swaging ring having a tapered inner surface engages the tapered outer surface of the sleeve such that axial movement of the ring in a forward direction with respect to the sleeve causes the ring to apply a radial force to the sleeve to swage it to the tube. The swaging ring is comprised of a lightweight, high strength material, such as a composite material, having high tensile strength in a circumferential direction and a high modulus of elasticity, with relatively low density and low elongation properties. One preferred composite material comprises an epoxy resin matrix and a high strength graphite fiber. The swaging ring is locked onto the sleeve both before and after swaging by one or more protrusions on the outer surface of the sleeve which cooperatively engage an annular groove in the swaging ring.

Abstract: A drilling tool having a cutter for drilling a hole in a workpiece is disclosed. The tool has a special peck drilling mechanism that controls the advancement and retraction of a cutter such that the cutter is advanced into the workpiece a short distance and then withdrawn. The peck drilling mechanism enables this cycle of advancing and then withdrawing the cutter to be repeated until the cutter bore a hole in the workpiece to the desired depth. Cycling of the tool in this manner is controlled by a clutch assembly and a retract mechanism that are pneumatically connected to each other and to the feed piston such that the number of cycles of the tool and the total depth of penetration by the cutter into the workpiece can be controlled.

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: This invention provides a fluid fitting made up of telescoping sleeves providing an annular space therebetween adapted to receive the end of a tube. The outer sleeve is attached to the inner sleeve by being deflected around annular ridges at one end of the inner sleeve. The sleeves are attached to the tube by swaging the outer sleeve so as to grip the tube between the two sleeves. Grooves in the inner sleeve provide corners which dig into the inner surface of the tube and provide seals and retention, while recesses in the outer sleeve receive deflected material of the tube to prevent rotation.

Abstract: The plug shell and receptacle of an electrical connector have registration keys and keyways that are alignable in a single rotational position. A coupling ring mounted for rotation on a plug shell has a mating set of keys and keyways that must be aligned with the registration elements of the plug shell and receptacle for insertion of the receptacle into the plug shell. After such insertion has been accomplished, the coupling ring is rotated to further draw the receptacle and plug shell together and to prevent axial separation of the plug shell and receptacle. In order to positively prevent precocking of the coupling ring prior to insertion of the receptacle into the plug shell, a locking finger is resiliently pivoted to the plug shell, having one part entering a locking recess of the coupling ring and a second part entering the plug shell bore into which the receptacle is to be inserted.

Abstract: This invention provides a filter pin connector having two capacitor disc assemblies, each with a plurality of openings receiving the connector pins and held within a connector shell. Each capacitor disc includes a plurality of laminations of conductive material formed by providing conductive ink on layers of ceramic tape which are fused together to form a unit. The laminations are in two sets and alternately arranged to provide opposed capacitor plates. The laminations of one set are connected to the pins and those of the other are connected to the shell.

Abstract: This invention provides a fluid fitting for joining two tubular members in a fluid-tight relationship, the fitting including a sleeve having outer end portions with ridge means on the inner surfaces thereof for retaining a tube upon being compressed inwardly around the tube, sealing areas inwardly of the retention areas, the sealing areas including sealing elements on the inner wall of the fitting for forming a fluid-tight engagement with a tubular member received within the fitting upon compression around the tubular member, intermediate areas separating the end portions and the sealing areas, and a central portion of increased wall thickness for providing a greater strength at that area.

Abstract: This invention provides an optical fiber connector that includes a tubular receptacle with a lens at its central portion and fiber termination units extending into its opposite ends. Each of the fiber termination units includes two elements, one telescopingly received in the other and resiliently biased toward the lens. A nut engages either end of the receptacle and the outer element of the fiber termination unit, biasing the latter element against a positive stop which limits its axial travel toward the lens. A single seal at each nut engages the receptacle and the fiber termination unit to preclude entry of foreign matter. The fibers are gripped by resilient members compressed around the fibers by crimped portions of the fiber holding units. An elongated tool, with spaced shoulders, positions the lens and its retention springs at the center of the receptacle.

Abstract: The present apparatus and method make it extremely easy for a worker, even when located in a manhole or on a telephone pole, to rapidly achieve a perfect break in an optical fiber and at a precisely predetermined position relative to a connector means. The breaking is the same, regardless of the upright, inverted or inclined position of the tool. Only a single motion of the blade is required at any desired speed, and there is no necessity for the blade to contact the fiber at a pressure within certain limits. These and other major results are obtained by clamping an optical connector element to the optical fiber before breaking is effected, and then removably securing the connector element to the breaker at a precisely known position which is correlated to the location of the scoring blade and to the characteristics of the connector.

Abstract: This invention provides a light coupling device capable of selectively dividing a light signal and controlling its transmission from an emitter to receiving elements. The device includes a light-transmissive member with two pairs of opposite lens cavities for receiving light emitting and receiving devices such as optical fibers. A partial mirror is positioned between the cavities so that extensions of the axes of the cavities intersect at the partial mirror and make equal acute angles with the partial mirror. Part of the light from an emitting device in one cavity will be transmitted through the partial mirror to the opposite lens cavity while the remainder will be reflected to a third lens cavity. The fourth cavity receives none of the light. Light from each of the lens cavities will be reflected to a different lens cavity from that of any of the others, which enables various light coupling combinations to be selected. Three lens cavities may be provided in lieu of four lens cavities.

Abstract: This invention provides a connector for optical fibers which includes a receptacle within which is a lens member, with plugs being connected to the opposite ends of the receptacle so that optical fibers carried by the two plugs are in a light-transmissive relationship at the lens member. The plugs include forward tapered surfaces which are biased by resilient forces against tapered surfaces of the lens member for directly aligning the plugs with the lens member. Each of the plugs includes a back shell carrying a clamping member in which resilient pads are biased against the fiber to grip it without damaging it. Within the front shell the optical fiber is caused to bow in a predetermined direction which enables compensation to be made for any offset in the axes of the cavities in the lens member.