Engineered Transitions Company, Inc.

Other

Raychem Limited

Icore International, Inc.

Engineered Transition Company, Inc.

Engineered Transistions, Inc.

Edward P Goett

Roger Woehl

Clifford C Fowler

Stan Smith

Frederick E Maul

Robert F Spratt

A lightweight flexible conduit particularly suitable for aircraft applications for shielding electrical wire and cable from electromagnetic interference and radio frequency interference. The apparatus including an inner core of elastically deformable flexible tubing having an outside surface of helical corrugations, metalized fabric wrapped around the helical corrugations and post-formed onto the corrugated helix of the core by string, thread, or wire which pulls the fabric down into the base of the continuous trough of the corrugations, and a protective jacket. A preferred embodiment of the present invention includes an axial drain wire incorporated into the lamination and running the length of the conduit to provide lower ground path resistance.

Lightweight shielded conduit

A conductive yoke is provided insertable into a backshell adapter to provide a convenient shielding termination system for grounding braids and shields of conductors in a multiconductor cable to be connected to and grounded at a multipin electrical connector, the yoke providing ease of connection of such braids and shields to it and having direct electrical contact to the grounded surface of the connector.

Multiple internal shield termination system

A cable braid splice for creating a mechanical and electrical junction between two pieces of metal braid covering a single cable is disclosed, including a coiled ribbon spring having a first and second ends, coils at each end wound inwardly towards one another, a joining segment of ribbon interposed between the coils, and a thin pliable &ldquo;C&rdquo; clip for placement partially around a cable bundle and underneath overlapping cable braids. A method of using the splice is also disclosed, including the steps of placing a &ldquo;C&rdquo; clip over a wire bundle and underneath two opposing layers of braid so as to encompass approximately half the circumference of the cable bundle but leaving a gap on the other half, pulling the braids into an overlapping relationship with one another, pressing down the braids to form a ridge at the location of the clip, and applying the coiled ribbon spring by wrapping the opposing coils several times around the cable and opposing braids on each side of the ridge such that the joining segment of the coil crosses the ridge at the position of the gap in the &ldquo;C&rdquo; clip.

Repairable braid splice

A shield splice for terminating the individual shields on individual wires in multiple wire bundles includes a generally elongate section of transversely deformable material, preferably fabricated from aluminum or tin plated copper metal. The elongate section is open at each end and has a plurality of longitudinal passages which may be any of a number of geometrical shapes. The exterior surface is surrounded by a stainless steel or plastic tie strap, which may have a preinstalled ground strap. In use, wires with exposed shields are inserted through the passages in the elongate section, and the tie strap is cinched down and tightened, thus crushing the splice material around the individual wire shields and grounding them collectively. A method for grounding multiple internal braid splices is also disclosed.

Internal shield splice

A cable connector adapter comprising a segment of tubular elastically deformable flexible conduit, having an outside surface of helical convolutions, connected to a cable connector boot having an integrally formed oval female threaded nut into which the conduit is screwed in a deformed, oval configuration. The conduit is deformed into an oval shape to fit and screw into the oval threaded female nut, said deformation flattening the conduit and adapting it to the generally rectangular shape of the boot and connector, thereby providing the transition in the shape of the bundle of conductors of the cable from round substantially rectangular.

Method for attaching helical conduit to rectangular backshell

A strain relief for electrical fittings includes a body portion having a pair of ends, the first end for attachment to a connector, and the second end having a worm drive clamp for releasable clamping upon a cable. The strain relief may include a flexible boot to provide a sealing function, or a flexible tube of braided shielding wire to provide EMI shielding.

Strain relief for electrical fittings

A cable termination system for heavy duty cables having a threaded metallic or plastic shield includes only two members; a termination body and a termination nut, the former having internal threads mating with an internal thread shield of the cable and the latter having rounded internal threads mating with rounded external threads of the termination to clamp at least the outer braids of the cable between the external threads of the termination and the internal threads of the termination nut. The termination body is screwed onto the shield and provides an annular pocket to receive the end of the shield to protect the wires of the cable from burrs and sharp edges at the end of the shield. The internal threads of the termination have a different pitch from those of its external threads whereby the threads bind the termination nut and prevent it from becoming unscrewed from the cable. The termination nut is locked in place by snap rings and its end seats against an O-ring to isolate it from the environment while the other end of the nut engages a projection on the termination body to seat the outer covering of the cable between the two elements of the system.

Field repairable conduit termination system

A locking coupling primarily for backshell connectors includes basically a main cylindrical body through which wires pass to an electrical connector, a coupling collar for connecting the backshell to the connector and a locking collar in one position permitting the coupling collar to rotate relative to the main body and in a second position locking this coupling collar to the main body, the main body having a circumferential ring of radial and axially extending teeth, a pawl having teeth carried by the coupling collar in alignment with the teeth of the main body, the locking collar forcing the teeth of this pawl into tight engagement with the teeth of the main body in the locking position.

Locking coupling

The invention provides a locking coupling having a hollow cylindrical body with a circumferential ring of axially extending radial teeth, a first coaxial collar having a plurality of spring fingers extending axially therefrom with inwardly directed, axially extending teeth overlying the teeth on said body and a coaxial locking collar slidably mounted on said body between two positions and having a region overlying the spring fingers, the locking collar forcing the teeth on the spring fingers into engagement with the teeth on the body in one position and permitting the teeth to become disengaged in the other position.

Vibration resistant locking coupling

A connector accessory for electrical connectors containing a detent or locking member or members for preventing disconnection from an attached connector when the assembly is subjected to vibration, shock or other stresses. The accessory consists of a coupling and a body containing the accessory which in one form is a detent and in another form serves as a detent in one direction of rotation and a permanent or temporary lock in the other direction of rotation. The coupling is provided with screw threads to engage an accessory thread at the rear of an electrical connector and the body contains features which are required to provide proper mechanical and environmental interface characteristics to mate with various electrical connectors, i.e., teeth, splines, seals, etc. When the accessory is mated to an electrical connector, the rotation of the coupling is restricted by a spring and tooth mechanism interfacing between the coupling and the body to prevent the coupling from counter-rotating and allowing the accessory to become loosened or separate from the back of the connector. This concept may also be employed on a connector coupling ring as well.

Vibration resistant electrical coupling

A connector accessory for electrical connectors containing a detent or locking member or members for preventing disconnection from an attached connector when the assembly is subjected to vibration, shock or other stresses. The accessory consists of a coupling and a body containing the accessory which in one form is a detent and in another form serves as a detent in one direction of rotation and a permanent or temporary lock in the other direction of rotation. The coupling is provided with screw threads to engage an accessory thread at the rear of an electrical connector and the body contains features which are required to provide proper mechanical and environmental interface characteristics to mate with various electrical connectors, i.e., teeth, splines, seals, etc. When the accessory is mated to an electrical connector, the rotation of the coupling is restricted by a spring and tooth mechanism interfacing between the coupling and the body to prevent the coupling from counter-rotating and allowing the accesory to become loosened or separate from the back of the connector. This concept may also be empliyed on a connector coupling ring as well.

Flexible electrical shielding conduit and method for making same wherein the conduit comprises multiple layers including a flexible conduit tubing outer layer, an electrical shielding layer disposed within the tubing and in contact with the conduit layer, and a woven retaining layer inside the shielding layer, said woven retaining layer expanding radially outwardly when compressed axially continuously forcing the shielding layer into contact with the conduit tubing to provide an unobstructed passageway therethrough. An alternative embodiment and the method for making same wherein the electrical shielding layer and the retaining layer are combined to form an integral inner layer having the properties as described above.

Growing community of inventors

Healdsburg, CA, United States of America

Edward P Goett