Abstract: A hand held gauge for accurately measuring the circumference of conductors especially conductor cables with multiple strands, for indicating correct connector size for the conductor, and for aiding in the assembly of a bare conductor end into a connector sleeve.

Abstract: Limiters for protection against fault currents in electrical distribution networks the limiter having externally visible indicator for indicating that a limiter element has fused and which visible indicator may be reset and reused after a fused limiter is replaced.

Abstract: Crimping dies for hydraulic compression tools for electrical connectors and the like in which one of the dies in a matching set is provided with means for engaging and stopping a connector workpiece in proper position for crimping in the die jaw.

Abstract: A tap connector provided with upper and lower body portions, each of the body portions including opposed concave seating surfaces adapted to hold a conductor having a first diameter. The upper and lower portions are provided with a tongue and groove combination parallel to the concave seating surfaces to hold a conductor having a second diameter less in size than the first diameter. This tongue and groove combination provides an anti-rotating feature.

Abstract: A grounding clamp for permitting the grounding of an electrical cable provided with a 2-hole compression connector allowing the grounding of this cable to a metallic pipe. A mechanical clamp provided with a saddle portion and one or more U-bolts is mounted to the pipe. The mechanical clamp is provided with a mounting pad onto which the compression conductor is also mounted. A connection system is provided between the mounting pad and the compression lug allowing the electrical cable to be angled at different directions with respect to the metallic pipe.

Abstract: A grounding connector capable of being clamped by compression forces to a tapered metallic flange of an I-beam. The grounding connector is rectangular when viewed in side elevation and has an upwardly opening, tapered slot that accepts the metal flange. Threaded holes extend upwardly from the bottom of the connector to allow contact screws to be advanced therethrough to establish contact therewith. The need for brazing or welding a connector to the flange is eliminated.

Abstract: A crimping tool comprises a pair of handles, crimping jaws, dies, and/or die nests, positioned at one end of the handles and in alignment with each other to receive a connector therebetween, a linkage extending between the handles and joining same together such that one handle pivots relative to the other and forces the jaws, dies, and/or die nests toward each other. A rotatable die wheel, with dies, of different sizes and shapes, is located at the forward end of one handle, in alignment with the working surface of a crimping jaw secured to the forward end of a second handle. The die wheel has a plurality of passages extending transversely therethrough. A chamber is formed in one of the handles, and a ball is placed therein. A strap, formed of spring steel, is secured to one of the handles and exerts a biasing force upon the ball.

Abstract: An H-shaped compressible connector having a main body and two pairs of opposed legs extending in opposite directions from the main body. Each pair of opposed legs is provided with one leg which is curved inwardly with respect to the second leg. During the crimping process, this curved leg would move below the interior surface of the second leg in each pair, thereby providing a completely closed connector for various conductor sizes.

Abstract: A compressible electrical connector having slots or channels for the inclusion of two or more conductors therein. One or more surfaces of the connector are provided with an extruded groove having a tying device press-fitted therein. After the conductors are inserted into the various slots or channels of the connector, the tying device would be tied or twisted around each end of the conductor bundles prior to implementing the crimping process.

Abstract: A cam roller brake for a crimping tool for electrical connectors having a cam actuated toggle mechanism for operating crimping jaws in which the roller brake regulates movement of the cam in precise crimping cycles.

Abstract: A hydraulic tool for crimping electrical connectors having a die head subassembly in which the moveable power ram is constrained to axial movement along its power cylinder axis and prevented from rotating about the cylinder axis or canting as it moves outwardly of the cylinder during a connector crimping operation.

Abstract: Several configurations of compression ground connectors to allow for one, two, three or more taps from a single ground connector to an installation requiring grounding. The installation is completed using a single crimping stroke.

Abstract: A power booster bushing for obturating powder gases in a cartridge case employed by power actuated tools used for connecting power cables. The power booster bushing supports an explosive power cell and is slidably positioned in the cartridge case bore and has a series of ribs defined by grooves engaging the cartridge case bore. The interface between the cartridge case bore and the bushing is sealed during detonation of the power cell by means of the circumferential ribs. The bushing undergoes an "accordion effect" during detonation characterized by axial compression of the bushing and resulting in the prevention of powder gas escape through the open breech end of the cartridge case.

Abstract: An electrical connector for establishing electrical connection between spaced printed circuit boards, for example, comprising a spiral-wound elongated spring member formed of a one-piece blank and being longitudinally resilient for establishing firm surface contact between circuit boards and radially resilient to provide firm contact in a surrounding receptacle when either end of the connector is compressed. A signal connector is fitted into a carrier block and surrounded by ground connectors to protect the signal from interference. The connector design is small in overall length to minimize connector-length related disturbances to the signal.

Abstract: A float/guide member is provided with contact receiving cavities for receiving the contact members of an electrical connector. The contact receiving cavities are provided with a portion which is oversized with respect to the size of the contact members, thereby allowing the electrical connector to float laterally with respect to the float/guide member by floating or bending of the contact members within the enlarged portions of the contact receiving cavities.

Abstract: An electrical connector for connecting a first conductor to a second conductor. The electrical connector includes a generally E-shaped body which defines first and second conductor receiving cavities for accommodating the respective conductors. An intermediate member extends generally centrally in the interior of the body member, serving to separate the conductor receiving cavities. The body member is provided with an opening communicating with the conductor receiving cavities, by means of which the conductors are adapted to be positioned within the cavities. A plurality of rib members project from the body member into each of the cavities, and are deformable under pressure to vary the size of the cavities.

Abstract: A power actuated tool having an explosive cartridge for applying connectors to power lines wherein the tool is armed as the power tool is loaded with a cartridge and engaged with a connector, and disarmed if the tool operator disengages the connector leaving the connection unfinished.

Abstract: A hydraulic tool for crimping connectors to electrical power lines includes a C-shaped crimping head which is infinitely rotatable with respect to the main body of the hydraulic tool for ease of positioning the tool with respect to workpieces. The invention particularly relates to the means for having a C-shaped head on the tool to achieve universal rotation while maintaining integrity of the hydraulic system across the rotational interface.

Abstract: A contact pin for a printed circuit board comprises a compliant portion for mounting the contact pin in a hole in the printed circuit board. The compliant portion includes two legs extending in the longitudinal direction of the contact pin and joining a solid contact pin portion at both ends. These legs are twisted into a position in which seen in cross section these legs extend obliquely outwardly before insertion of the contact pin in a hole. The legs are separated from each other by a slot and each solid contact pin portion is provided with a positioning element projecting from the corresponding solid contact pin portion into said slot and being displaced outwardly with respect to the solid contact pin portions.

Abstract: A method and apparatus for discharging a cake of suspended solids formed on an electrode structure, the electrode structure comprising an electrode, a membrane wall, an electrolyte chamber formed by the membrane wall, and means for increasing the pressure inside the electrolyte chamber so that the membrane wall expands, whereby the cake of solids of suspension are discharged therefrom. The means for increasing the pressure inside the electrolyte chamber are injecting gas into the electrolyte chamber, injecting liquid into the electrolyte chamber, and/or reducing the vacuum means applied internally to the electrolyte chamber.