Abstract: A terminal block cover provides a cover body having a latch mechanism depending from a side edge of the cover and a hinge mechanism depending from the opposite side edge. The hinge mechanism includes a clip that engages the terminal block's fanning strip, a separable hinge connected between the clip and cover body for permitting removal of the cover body from the terminal block, and a locking device that prevents the cover body from being removed from the terminal block except when it is in a predetermined rotational position on the hinge. The clip provides a prong that engages the fanning strip to index the clip in a fixed position so that the cover body can be reinstalled at the original position. In addition, the clip is held to the hinge mechanism by spring fingers on the hinge pin housing, which cooperate with the locking device to hold the clips in attachment to the cover body even when not installed on a terminal block.

Abstract: A case for protecting the electrical connection of a storage battery terminal post with the end of a battery cable attached to that post. The case is in the form of a one-piece molded housing that incorporates an alignment and latch structure which makes it easy for the average car owner to open and close the case for accessing the connection when desired.

Abstract: An electrical termination comprises a cable lug 1 fitted to an end of an electric cable 3 and connected to a terminal 5 provided with an insulating bushing 6. An insulating shroud 13 comprising a rigid sleeve 14 and a removable closure element 15 fits over the terminal in spaced relationship thereto, with the space between the sleeve 14 and the bushing 6 at the end portion 19 of the sleeve 14 opposite the closure element 15 being closed by an annular insulating member 18. The sleeve and the closure element are provided with cooperating open end slots 20, 21 which define an aperture in the shroud in which a further insulating sleeve 23 fits so as to extend outwardly from the shroud. The cable lug 1 passes through the sleeve 23.

Abstract: A molded plastic circuit breaker support for lighting panel boards includes integral guides for robotic insertion of the branch strap conductors as well as integral support means for providing additional support to the main bus conductors. A former plastic cover is positioned over the branch strap conductors for electrical isolation within the panel board enclosure and a formed plastic phase barrier shield is attached to the top of the support for insulating the main bus conductors.

Abstract: A snap-fitting cover assembly for the terminal block (12) of an electrical transformer (10) comprises a backing plate (18) having apertures (20) for receiving terminals (14) of the transformer and adapted to be mounted against the terminal block (12). The width of the backing plate 18) is slightly greater than the width of the terminal block (12) so that opposite side portions (A) of the plate (18) extend beyond the block. A cover (28) adapted to fit over the backing plate (18) and block (12) has a pair of inwardly extending ears (26) that snap fit around the extending portions of the backing plate (18). With the backing plate (18) secured to the transformer terminals (14) by nuts (24), the cover (28) is retained to the terminal block (12) by a seal wire (34) extending through the cover (28) and behind the plate (18).

Abstract: A circuit breaker apparatus characterized by a molded case forming a plurality of intercommunicating compartments with a circuit breaker structure within a compartment, arc-quenching means in an adjacent compartment, a line terminal in a next adjacent compartment and electrically insulating shield means between the line terminal and the arc-quenching compartment.

Abstract: A quick assembly shield for electrically insulating the front surface of an electrical control device includes a flexible generally rectangular body having a top retainer including a step for engaging the lip of a lug on the top surface of the control device. A pair of laterally interfering surfaces are provided for longitudinally aligning the shield with respect to the underlining control device. A spaced pair of inwardly facing catches engage in snap fashion a laterally spaced pair of lugs on the lower surface of the control device. The shield can be quickly and positively engaged with the underlying control device yet still provide access to permit variance in temperature or other control functions as required.

Abstract: An article comprising a heat-recoverable conduit is provided with a plug or cap within or around said conduit to prevent the ingress of contaminants. The plug or cap comprises two principal parts; the first part, which is hollow, sits inside or around the conduit and the second part, which is attached to or in engagement with the first part, blocks the conduit. The second part can be detached or disengaged before recovery so that, for example, a supply line can be passed through the conduit and the first part can then be removed, destroyed or deformed prior to or during recovery. The plug or cap may also act to prevent premature recovery of the conduit.

Abstract: Foamable hot-melt adhesives comprised of a per se known hot-melt adhesive having a foaming additive therein, for example an organic azo compound. These adhesives can function in a purely physical foaming manner but can also function as crosslinking material, i.e. as solidifying and bonding materials. The foamable hot-melt adhesives of the invention can be used, for example, in sealing cable ends, for filling any desired aperture in the construction field, for sealing windows, doors, etc. or for sealing articles of manufacture.

Abstract: An insulator for covering a splice connection joining multiple exposed conductors. The insulator has an inner foam core and an outer plastic cover which together form an elongated sleeve that fits over the splice. The cover is flexed from an open position where the sleeve fits over the splice to a closed position where two interlocking edges extending along the length of the sleeve mate to hold the insulator in place. In combination, the core and cover prevent dust and moisture from reaching the splice and also prevent exposed conductor strands at the splice from coming in contact with other circuit portions.

Abstract: A protective cover is provided for a standard rectangular transformer connector bar and for pedestal bar connector having ports for cable installation and threaded boreholes in adjacent ninety degree planes. The cover comprises a translucent housing open at one end and closed at the other when used with the transformer bar connector, and closed at both ends when used as a pedestal bar connector. The cover has a plurality of internal aligning ribs having apertures therein which allow longitudinal passage of the connector bar therethrough. A plurality of parallel access ports through the housing extend longitudinally and are spaced from each other ninety degrees so as to be alignable with the installation ports and boreholes of the bar connector. Opposed flexible tines extend across each of the access ports from the edges thereof.

Abstract: An electrically insulative shield is disclosed for engaging and covering a device in an electrical circuit. The shield includes a generally planar portion having first, second and third edges. When the shield is engaged to the device, these edges correspond generally in position to the first, second and third sides of the electrical device. A first gripping member extends outwardly from the planar portion adjacent the first edge. The gripping member includes an apertured portion for receiving a projection formed on the first side of the device. A first outwardly extending gripping hook member is provided adjacent the second edge. The first hook member grips a projection adjacent the second side of the device. A second outwardly extending gripping hook member is provided adjacent the third edge of the planar portion. The second hook member grips a projection adjacent the third side of the device.

Abstract: A protective cover is provided for a standard rectangular transformer connector bar having ports for cable installation and threaded boreholes in adjacent ninety degree planes. The cover comprises a translucent housing open at one end and closed at the other with a plurality of internal aligning ribs having apertures therein which allow longitudinal passage of the connector bar therethrough. A plurality of parallel access ports through the housing extend longitudinally and are spaced from each other ninety degrees so as to be alignable with the installation ports and boreholes of the bar connector. Opposed flexible tines extend across each of the access ports from the edges thereof. The apertures in the ribs are geometrically configured so as to align the access ports with the installation ports and boreholes of the connector bar for either a right-hand or left-hand installation of the connector bar on the transformer stud.

Abstract: A terminal tray which overlies the windings of a motor stator, has a plurality of lead guides. The guides are arranged to separate the leads from one another and retain them in their respective positions. The joins between the leads and the motor stator are within the tray. Further a lid arrangement and hinge tabs are provided for joining the lid to the tray. A plurality of spigots are extending from the tray into the stator and windings thereof for retaining the tray to the motor.

Abstract: A sealing device for a wire splice. An insulative tube with a reservoir positioned transverse to and communicating with the insulative tube is adapted to receive a wire splice. A septum within the reservoir at least partially divides the reservoir substantially transverse to the insulative tube. An insulative fluid may then be forced through the reservoir into the insulative tube surrounding the wire splice. A connector for electrical wires is formed from a conductive tube adapted to receive the ends of the electrical wires to be connected and capable of being crimped onto the electrical wires. A sealing device may then be positioned over the conductive tube and an insulative viscous fluid may be forced through the reservoir into the insulative tube surrounding the conductive tube in order that the electrical wires may be electrically connected and insulated.

Abstract: This disclosure depicts a combination handle and cover apparatus for use with a plug-in device having an electrical terminal strip on a front end. The device is contained within a mainframe assembly. The apparatus comprises first and second means. The first means is for covering the electrical terminal strip and for inserting the device into and removing the device from a mainframe assembly. A second means is attached to the first means and is also hingably attached to the front end of the device such that in an open position the first means functions as a handle and in a closed position the first means functions as a cover.

Abstract: A cover for protecting connecting leads and terminals of a switchgear, which extend to one side of the switchgear from an upper part, is made in the shape of a Z. One arm of the Z extends upwards, parallel to the outside wall of the upper part and the other arm of the Z extends downwards and covers the region of the terminals. The first arm is provided wih outward facing grooves or slots which have spacings like the spacings between the connecting leads when they are connected to the terminals. When the switchgear is disconnected from the leads and removed from the mounting, the Z-shaped cover is reversed and fastened to the mounting in its place. Since the leads are more or less rigid, the covering now extends over and protects them. Thus, the same cover, by simple reorientation, serves to protect the connecting leads when they are connected to the switchgear and when the switchgear is not in place.

Abstract: A cable connector cover for use primarily with telephone cable connectors is provided with knock-out panels for bringing a connector half into the cover from an outlet box and for creating screw openings for mounting on the outlet box. Further mounting is possible by the use of snap-in inserts fitting within diagonally arranged pockets on the rear of the cover, which inserts may magnetically or adhesively be joined to an external object. Screws for holding the cover on an outlet box are carried in a press-fit holder within the cover, and the holder is spaced above an underlying wall by a sufficient distance that tape segments for use on the inserts can be stored between the wall and screws. Further knock-out panels provide mounting for modular jacks. Adjustable cable passage openings seal around various cable sizes or may be closed by plugs.

Abstract: An electrical connection insulator comprising an outer tube formed from a mono-layered film of a non-adhesive, heat stable, dielectric, synthetic, polymeric resin enclosing an inner tube formed from a mono-layered film of a non-adhesive, heat shrinkable, dielectric, synthetic, polymeric resin. The outer surface of the inner tube is attached to a selected minor portion of the inner surface of the outer tube by an adhesive strip spirally wound about the body of the inner tube. An electrical connection is covered with the insulator by disposing it within the inner tube, heat-shrinking the inner tube about the connection, and then sealing the outer tube about the heat-shrunk inner tube under heat and pressure.

Abstract: A plastic cover for bridging clips of the type commonly utilized on telephone and communications terminal blocks. The cover is dimensioned to closely conform to the contour of the associated clip and includes partial end walls and nibs which function to enhance retention of the clip. The cover may be field installed on an existing bridging clip without the removal of same, or pre-assembled with a clip prior to installation.

Abstract: A compartmentized lead wire terminal housing of electrical insulative material is provided for installation in the shell of a dynamoelectric machine (e.g., a fractional horsepower motor) in which male terminals connected to the windings of the motor are securely installed within separate compartments of the housing so as to enable female connectors on lead wire to be readily connected to the male winding terminals. The housing further has a lid which may be closed and locked in place thereby to enclose and protect the terminals.

Abstract: This specification discloses a means for providing a barrier against the passage of fire through that portion of a wall aperture surrounding an electrical conduit, pipe, or the like. This is accomplished by placing a sleeve around that portion of the conduit passing through the wall, which sleeve is the central portion of an envelope which is anchored peripherally to the wall or to a more or less rigid material blocking the aperture through the wall and which sleeve connects to end portions of the envelope, each of which end portions extends to connect with the conduit on an opposite side of the wall. The annular region between the conduit and the surrounding envelope is filled with an intumescent gel. The boot is flexible and capable of some movement to compensate for thermal expansion, vibration or other forces during the life of the installation.

Abstract: A one-piece, molded, terminal cover providing a weatherproof enclosure externally of a field-mounted component is disclosed. A first member has a back face adapted for external connection to the field-mounted component. The back face has at least one opening communicating with an opening in the field-mounted component through which outgoing wires extend. The back face further has a continuous, external rib around the opening for providing a gasket. The first member additionally has a top face, a bottom face and two side faces. A second member has a front face, a top face, a bottom face and two side faces. The bottom face has at least one opening through which incoming wires extend. The first and second members are flexibly hinged and cooperate when in the closed position to define the weatherproof enclosure wherein the incoming and outgoing wires are connectable. Means are provided for locking the first and second members in the closed position.

Abstract: A junction box and connector arrangement for jump starting an automotive vehicle comprises a junction box of one-piece thermoplastic construction, a stud and a cap fastener. The junction box has a box-like body provided with an integrally hinged flap and an integrally hinged cover. The stud is inserted into the box-like body through an aperture in the bottom wall and retained by closing the flap. The flap also insulates the stud so it can be used as a hot connector. Cable terminals are secured to the stud by the cap fastener which serves as a connector for a conventional jumper cable clamp when jump starting is required. The open top of the body is normally closed by the hinged cover to protect the hot connector.

Abstract: In providing an electrically insulative covering for a cable splice, a sleeve is assembled with an outer rigid shell and is maintained in fluid-sealed relation therewith. A supply of positively pressurized air is placed with the assembled sleeve and outer member, in fluid-sealed relation with the sleeve interior. The sleeve is expanded into contiguous relation with the outer member by the pressurized air. The expanded assembly is placed over the splice and the fluid-sealed relation of sleeve and outer member is interrupted, causing the sleeve to collapse upon the splice and cables, whereupon the outer member is removed and discarded.

Abstract: A snap-on cover for a bobbin-wound electrical coil assembly includes a plurality of displaceable tabs aligned with slots provided for lead exits in the end flanges of the bobbin. Those tabs aligned with slots containing leads are displaced whereas those tabs aligned with unused slots are not displaced and effectively cover such unused slots.

Abstract: An enclosure for an electric cable splice suitable for burial in the ground. An enclosure which provides moisture-proofing and mechanical protection for the splice. A pair of shells which slide together to form a box-like enclosure having a main compartment, an intermediate compartment, and an entrance passage. A pair of cables is positioned in the entrance passage with the cables passing through the intermediate compartment into the main compartment where the splices of pairs of conductors are located. Each of the shells has a quantity of sealant in the main section so that when the two sections are brought together with the cable splice there between, the splice components are completely surrounded by the sealant in the main compartment, and sealant is forced into the intermediate compartment around the cables.

Abstract: Protector accommodating pocket established by a sheet of dielectric material which is folded upon itself. Includes locking flap having an accurately located entry hole for spade type terminal. Locking shoulder is established by the flap to securely lock a protector in the pocket. A solid segment, interrupted only by a lanced portion provides maximum strength against inadvertent release of the terminal. The assembled member preferably is ultrasonically spot welded and may include a reinforcing member.

Abstract: A meter disconnect adaptor for assembly into a residential electric meter socket. The adaptor has a base with a peripheral configuration which allows it to be used with either a ringless type of meter box, or in a ring type of mounting, and has blade simulating members extending from one side of the base and resilient fingers extending from the other side of the base for receiving contact blades of the electric meter. In one embodiment of the invention the adaptor has a group of resilient fingers arranged to allow assembly of the meter therein in any one of a number of orientations.

Abstract: An insulating and sealing sleeve for use with bus bar connectors of underground power distribution systems. The sleeve includes a generally cylindrical elastomeric body having internal sealing rings at one end thereof for sealingly engaging the bus bar and a reentrant and generally flexible constricted portion at the other end thereof. The axially inner end of the reentrant portion includes a tubular portion which extends axially outwardly and joining a tapered portion which flares outwardly and which terminates at the other end of the sleeve. The internal surface of the reentrant portion includes a plurality of grooves along the tubular and flared contours and which sealingly engage the insulation portion of a conductor which is mechanically fastened and electrically connected to the bus bar. The internally tapered grooved portion accommodates a relatively wide range of conductor sizes and the tubular portion ensures that a plurality of grooves will sealingly engage the minimum conductor size.

Abstract: An improved ignition coil cover is generally shaped like a cup and divided into two parts or first and second cover segments. The segments are assembled and fitted on an ignition coil so that salt water, water or the like is prevented from entering the cover.

Abstract: Protector accommodating pocket established by a sheet of dielectric material which is folded upon itself. Includes locking flap having an accurately located entry hole for spade type terminal. Locking shoulder is established by the flap to securely lock a protector in the pocket. A solid segment, interrupted only by a lanced portion provides maximum strength against inadvertant release of the terminal. The assembled member preferably is ultrasonically spot welded and may include a reinforcing member.

Abstract: The present invention relates to a covering for three way terminals known commonly as "T-Taps". More particularly, the covering comprises two halves joined by an integral hinge and having cooperating locking means.

Abstract: A cable connector cover has a U-shaped housing surrounding a cable passage with the arc at the base of the U-shape adjacent an arcuate portion of the passage. The cover has a double wall and an intermediate space surrounding the passage, and a sliding door is moveable in the space to partially cover the passage. Friction means allow the door to be retained in any of various positions covering portions of the passage. A normally extending member attached to the door closes the open side of the U-shaped housing and is slidable with the door toward the arcuate side of the housing to clamp the cable against the housing. Lips on the lateral sides of the normally extending member are severable from the remainder of the member to allow close clamping of extremely small cable.

Abstract: A pair of identical, semicylindrical shells, each having a latch and a socket, are snapped together around a coaxial cable and connector assembly. The shells are made of comparatively brittle plastic material so that, once snapped together, they cannot be separated without fracture thereof, whereupon the fact of tampering with them is readily apparent.

Abstract: The splice boot comprises retention means for holding an exit end portion of the boot to a connector block. The retention means take the form of integrally formed parallel rib segments on the exterior of the exit end of the splice boot such that part of a connector block abuts against the rear ends of the ribs to secure the boot to the connector block.

Abstract: A shield for protecting transformer wire has a cap which fits over and locates the shield relative to the transformer laminations, a side wall to protectively cover transformer wire wound on a bobbin and an integral flange to protectively cover transformer input and output wire. A deflectable locking piece integral with the side wall is locatable under a flange of the bobbin to lock the shield in place.

Abstract: The following specification describes a thin walled insulating boot formed of a thermoplastic molding material and attached by means of the circuit breaker in encircling relationship to the open end of the breaker. The boot prevents ionized gas created when the circuit breaker is tripped from completing a circuit path to adjacent metal portions. The boot walls extend past the open end of the breaker and a back wall spaced from the open end of the circuit breaker defines a chamber enabling expansion of the ionized gas.

Abstract: A wire splice insulator for underground wire splices and the like is provided in the form of a pair of substantially rigid flat base members in side by side relationship, a sheet of soft conformable self-sealing cohesive elastomer beneath and adhered to said base members, a dome extending outwardly from each said base member and elastomer sheet generally centrally of the base member and forming a cavity in the base member and elastomer sheet, a plurality of semi-tubular shields in each base member and elastomer sheet extending from the dome to adjacent the edge of the base members and forming semi-cylindrical cavities in said base members and sheets, said domes and tubular sheathes in the pair of base members being mirror images of each other, a soft non-hardening mastic adhesive insulating material filling the cavities in the elastomer and a parting sheet on the elastomer sheet and mastic opposite the base members.

Abstract: A hood construction for an electrical connector is provided having latching detent portions disposed on opposed end portions of the hood side walls. The detent portions are resiliently spread apart by connector interlocking portions in the course of effecting a secure snap interengagement. In one mode of hood-connector engagement a connector end is received in a slotted hood end portion whereafter the opposed connector end is pivoted into a snap-in engagement.

Abstract: A cable clamp for use with various ribbon connectors is readily mounted on a connector end for providing a strain relief avoiding inadvertent disengagement of wires terminated in contacts of the connector. A protective hood construction is designed to cover the connector contacts and support the cable clamp. After the clamp is fixed in place and the wire terminations visually inspected, the hood is readily snapped in place. The provided clamp is particularly well-suited for automated assembly operations, requiring no discrete securing elements but merely a squeezing or clamping engagement with a cable to impart desired strain relief. The hood similarly requires no separate securing means for interlocking assembly with the connector and clamp.

Abstract: An assembly is disclosed for bridging pairs of closely spaced electrical terminals having a variety of predetermined spacings. The assembly consists of a pair of identical insulative body parts which have cavities therein for housing two identical contacts and conductive devices connected between the contacts. The contacts and the conductive devices are connected together and inserted into appropriate cavities of a first body part, whereupon the second body part is snapped together and sealed with the first body part. A cantilevered contact mount enables the contacts to deflect and mate with connector blocks having split blade-like metallic terminals of various predetermined spacings.

Abstract: A compact protective electrical device for use with electrical wiring terminal blocks having a plurality of adjacently positioned elongated terminal means. The device includes a two-piece dielectric body composed of substantially identical sections which is designed to accept an electrical component associated with spaced contacts adapted to accept a variety of predetermined spacings of the terminals through end ports in the body. The device can serve as a surge protector in telephonic circuits dependent upon the type of electrical component utilized and is readily installed by finger pressure while maintaining a low profile to prevent accidental dislodgment.

Abstract: A cover for an open face terminal block, with or without a distributor panel adjacent one end of the block, for telephone installation equipment, said cover comprising a flat top which overlies the open face of the terminal block, or overlies said block and distributor panel, and extends sidewise beyond the side walls of the block, snap tabs depending from the inner surface of the flat top inwardly of the side edges of the top in positions which provide frictional engagement of the snap tabs with the side walls of the terminal block when the cover is pressed down on the block, and, if a distributor panel is present, distributor panel engaging means located on the inner surface of the cover top in the area located outwardly of the terminal block side walls, said cover covering adjacent blocks and space between them whereby tops and sides of the blocks are protected.

Abstract: A splice case is disclosed providing sealed protection for splices such as in telephone cable situated in adverse environmental conditions. The case includes a shell defining a cavity for enclosure of a splice. The shell is longitudinally split and includes openings at the ends thereof along the longitudinal split for receiving incoming cable. Thermally responsive sealant extends along the longitudinal split and a heating element is provided for causing the sealant to effectively seal the enclosed splice. A multiple cable adapter of thermally responsive sealant is sized to fit within a cable opening in the splice case and includes a plurality of longitudinally extending channels for accommodation of multiple incoming cables. Sheets of material exhibiting high thermal conductivity extend from the adapter such that the heat of the heating elements may be conveyed to the body of the adapter.

Abstract: A housing for splicing a trunk cable to a plurality of tip cables has a detachable end cap for receiving the tip cables. The detachable end cap is constructed from a pair of attached molded sections having flat spaced parallel surfaces between which is positioned a rubber sealing member. A plurality of holes extend through the two sections and the sealing member for receiving the tip cables. The first section includes a plurality of integrally molded conically shaped knock-out members positioned in the holes of the first section and projecting through aligned holes in the sealing member and the second section. The knock-out members form a plug that substantially fills the associated holes of the sealing member. The knock-out members are removed from selected holes at the time of installation for receiving the tip cables into the housing.

Abstract: An enclosure for encapsulating and sealing a splice between two or more underground cables is disclosed. A tubular chamber is provided to receive the splice, and the chamber has a radial access hole for pouring plastic compound into the chamber. The cables to be spliced pass through caps which enclose the ends of the chamber. A rotatable sleeve fits over the center of the chamber. The sleeve has an aperture corresponding to the access hole in the tubular chamber, and an outwardly projecting funnel extending from the aperture. The aperture in the sleeve can be aligned with the access hole and liquid plastic compound poured through the funnel into the tubular chamber to surround the splice. When the chamber has been filled with plastic compound, the sleeve can simply be rotated with respect to the chamber and locked to disalign the aperture and the access hole and thereby seal the chamber.

Abstract: A kit of parts for forming an enclosure for a cable splice that rigidly fixes two or more spliced cables and moisture proofs the splice and exposed cable ends. The kit includes a vial partially filled with a body of sealant and a plug which receives the cable ends and then may be positioned in the vial and partially immersed in the body of sealant. By immersing the plug in the body of sealant, the sealant is forced upwardly and around the cable ends to fully enclose the cable splice and the cable ends in the sealant. Arms associated with the plug act to retain the plug on the vial.

Abstract: A one-piece dielectric terminal cap having a generally rectangular tapered bore with a wide mouth opening for accepting a distorted two prong edge-to-edge terminal and restoring it substantially to its initial position. The cap also includes means for probe testing the terminal without removal of the cap from the terminal, plus tool engaging means.

Abstract: Devices, methods, and combinations for securing electrical connectors, wherein one of the connectors has a pair of mounting holes for facilitating mounting to a panel having cooperating mounting holes therein and an intermediate slot to permit passage of a portion of an electrical connector therethrough, can utilize a device which includes a flexible and sturdy planar member having a pair of mounting holes therein oriented so as to co-align with holes in the one connector and the panel. The planar member has a cooperating slot at least as large as the panel slot, and is formed so that two substantive portions can be folded at right angles in a U shape along parallel lines extending from opposite sides of the slot, the folded portions having inner surfaces facing each other with a space therebetween for housing the other connector.