Abstract: Contact pins are mechanically fixed to hollow cylindrical insulation sleeves surrounding the contact pins at both ends of an infrared bright radiator by way of a circumferential recess within the inner wall of the hollow cylindrical sleeve or the opposed surface of the contact pin which receives a radial projection carried by the other of the two members to limit axial movement of the pin relative to the insulation sleeve.

Abstract: Two protective molded plastic hood embodiments are disclosed that are particularly adapted for use in securing multi-conductor cables to connector plugs of the type typically having one or more arrays of terminals of either the soldered or solderless type associated therewith. Each plastic hood, by having a pressure pad integrally connected to a pressure pad-receiving hood extension formed as an integral rearward portion of the main body of the hood, advantageously allows the composite hood not only to be of one-piece construction, but allows the pressure pad to be key-way guided in a telescopic manner into the hood extension. This insures that reliable, diametrically opposed clamping forces, provided by a cable tie, will always be imparted against a section of cable when positioned between the pad and hood extension, regardless of the diameter of the cable (or cables).

Abstract: A terminal housing for surface-type resistance heating elements includes interlocking housing sections which snap together to form compartments in which connections to the heating elements are mechanically and electrically protected. The use of identical housing sections with integral locking and strain relief provisions allows the terminal housing to be used with a wide variety of types of connections without the need for a large inventory of components.

Abstract: The present invention provides a splice case for covering the spliced junction or area of two multiwire cables with the advantage of being able to re-enter the splice area without destroying the integrity or the reuseability of the splice case. The splice case includes a tubular cover of resilient elastomeric material over a generally rigid sleeve member and a pair of ribbons positioned therein between to provide a means for rolling the cover back onto the sleeve member.

Abstract: Leads electrically connected to the respective terminal portions of coiled wires in a core-type transformer are each provided with a flange on the insulating covering. A set of lugs formed on each of two opposite ends of a coil cover or of a coil bobbin have first grooves in spaced side-by-side relationship for receiving parts of the leads and second grooves arranged crosswise with the respective first grooves for receiving their flanges. A pair of lead covers are snapped into position to enclose the parts of the leads together with the flanges thereon and their connections to the terminal portions of the coiled wires, in such a manner that the leads can be positively retained in position in the respective grooves.

Abstract: Electric arc and flame protective sheath or boot material for electrical, particularly for high voltage electrical, cables and complex electrical splices, junctures and the like, is precast preferably from a liquid polyvinyl chloride plastisol, preformed into a selected shape of a protective sheath or boot, reinforced and protected against destruction by pre-mixing with a filler of heat resistant fiber containing flame and fire-retardant plasticizer as well as fire-retardant, preferably intumescent, and heat stabilizing substances. The precast sheath or boot is flexible and elastomeric and may be sized and shaped to be slipped upon the cable or joint protectively to further insulate and protect it against electrical arcing, heat or fire.

Abstract: Disclosure is made of a novel sheath and the method of its use for protecting electrical conductors and connections. The sheath comprises a tubular body which defines an interior space. The space contains an expandable, synthetic, polymeric resin foam forming composition. The method of the invention comprises inserting an electrical conductor or connection into the sheath of the invention and activating the foam forming composition to foam and encapsulate the conductor or connection. The installed sheaths protect the conductors and/or connections from degradation by environmental conditions, are resilient and improve the insulative quality of the electrical connection.

Abstract: A cable splice housing particularly useful for telephone cables has a hollow, tubular, plastic body, opposite sides of which are heat sealed together at one end thereof. A plug fits in snug mating relationship in the other end and has holes extending axially therethrough for the cables. A clamp is provided around the hollow body for clamping the latter around the plug, and the housing is filled with grease when in use.

Abstract: A casing for conveniently and safely covering and insulating a transformer multi-tap terminal connector includes an elongated main body portion having an open side and an elongated panel attached to the main body portion at the open side to define with the body portion a hollow tubular member. Front and rear covers are attached to the ends of the tubular member. A plurality of openings are provided through the elongated panel through which conductors can be passed for connection to a multi-tap terminal connector to be covered by the casing; and a resilient non-conducting cushion having through openings aligned with the openings in the panel is positioned within the casing to prevent collapse of the panel when conductors are inserted through the openings thereof. The main body portion also has holes located at right angles to the openings in the panel for receiving a tool to manipulate the screws of the multi-tap connector, and these holes are closed by a slidably mounted lid.

Abstract: A terminal box and cover in which the box has parallel longitudinal side walls comprising longitudinally spaced apart straight sided members terminating in flat tops which overhang the spaces between them, and the cover has a flat top and depending side walls provided with latch devices on their inner side surfaces which enter the spaces in the box side walls and engage the under surfaces of the tops of said box side wall members. The cover end walls have spacer blocks on their inner surfaces which bear on the upper edges of the box walls when the cover is in place on the box and prevent bearing of the cover top on connectors mounted in the terminal box. The latch devices on the cover side walls do not occupy any space between the respective side walls of the box and cover when the cover is in place on the box, and thus permit the cover to have a close fit on the box side walls.

Abstract: A protective housing or junction box formed of a fireproof or fire resistant material which receives and houses therewithin the spliced ends of electrical conducting wires. The housing is positioned within the base of a lamp.

Abstract: An end fitting retainer for welding equipment which holds a cable end fitting on a connector stud. The retainer includes a nut for threadably engaging the stud. A housing rotatably supports the nut. Guard members in a socket in the housing surrounding the head end of the nut overlie the nut. An opening in the guard members permits a wrench to turn the nut but prevents entry of a finger. A flange on the nut engages flanges on the guard members to hold the guard members in the socket. Interconnecting means on the housing and on the nut retains the nut in the housing.

Abstract: An electrical insulator for covering interconnected terminals of adjacent batteries includes a pair of terminal cover members each covering a battery post along with a portion of a conductor bolted to the battery posts and an intermediate cover member having an inverted trough-shaped configuration for receiving the length of the conductor extending between the pair of terminal covers and overlapping a portion of the terminal cover members, thereby enabling the length of the insulator to be adjusted to cover battery terminals interconnected with different lengths of conductors. The insulator is fastened to the battery connection by providing the intermediate cover with inwardly extending flanges and forming it from a resilient material so that it will yieldingly flex as it is placed into position, whereupon the flanges are resiliently urged beneath the interconnecting conductor to secure the insulator to the battery connection.

Abstract: A device for splicing multiconductor wires is provided to achieve splices of balanced length whereby each conductor of the wire carries a substantially equal tensile load. First and second crimp barrels are mounted in a frame having shoulders at opposite ends. Stripped wire conductors are respectively inserted at each end and the conductors are crimped in the barrels. The frame is dimensioned to provide substantially equal tensile loading on each conductor of the wire.

Abstract: A terminal insulator comprising a tubular component formed from flexible insulating material. In one axial region the wall of the component is formed with slits which define a displaceable flap integral with the remainder of the component. The flap is such that displacement thereof produces in said axial region of the component an aperture, the remainder of said region defining a shroud. The component further includes an additional axial region which is unaffected by said slits and so defines an unbroken collar. A method of manufacturing such a terminal insulator and a terminal assembly utilising such an insulator are also disclosed.

Abstract: A device intended to receive two or more electrical conductors of the same or dissimilar size and to provide mechanical protection and electrical insulation for the electrical connection of said conductors, including a container for receiving the joined ends of the electrical conductors, the device including having side walls, a closed end wall and an open end and a plug member adapted to seal the open end of the casing. Passages are provided in the plug end or closed end for the extension therethrough of the electrical conductors. Cooperating locking means are provided on the plug and the casing member for mechanically interlocking the plug end casing and radial flaps are disposed in the passages which are deformed by the extension therethrough of the electrical conductor to define a cone shaped collar between the passage wall and the condutor to impede the flow of potting compound out of the device.

Abstract: A protective hood for a cable connector plug is made of a one-piece molded plastic construction. At its forward end the hood includes a resilient tab which snaps into locked relationship with the plug as the hood is slidably assembled to the plug, and at its opposite end the hood can be securely connected to the cable, regardless of the cable diameter, by a self-locking cable tie. The cable is secured to the hood by flexing a pair of integral spaced guide elements projecting laterally from an upper rearward extension of the hood, to position an integral pressure pad beneath the cable jacket, whereafter the cable tie is inserted through an eyelet molded in a top portion of the hood extension. Utilizing the hood portion defining the eyelet as a stop for a head of the cable tie, the tie then is tightened between the guide elements to cause the pressure pad to grip the cable jacket against the upper rearward extension of the hood.

Abstract: There is disclosed herein an enclosure for a cable splice that rigidly fixes two or more spliced cables and moisture proofs the splice and exposed cable ends. A pair of mating plug members grasp the cable ends and are then partially immersed in a body of sealant contained in a vial. The plug members include a cap portion which engages the vial and keeps the plug firmly in place. The cap portion may include extended arms which engage threads provided on the vial before the plug members fully close the vial. These arms give mechanical leverage for drawing the plug members into a fully closed position in the vial.