Method of producing plastic collar integral with a cable jacket

Assignee: BRAND-REX WILLIMATIC CT

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Filing: 1979-09-18

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Granted: 1983-03-29

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Expires: 1999-09-18

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Abstract

Abstract There is provided a plastic collar integral with the outer jacket of a cable. The plastic material includes a mixture of a plastic and an electrically conductive material such as carbon black. The plastic is melt bonded to the cable jacket by applying electric current through the material, thus melting the material onto the jacket of the cable. Upon melting, the semi-conductive plastic may be molded into the desired form, and upon cooling, it becomes bonded to the cable jacket. The collar may be used as a seal for the ends of a cable splice closure as well as a shoulder for securing a sealing gasket to a cable for use in such closures. The collar also may be used as strain-relief for the conductors which are inside the cable as well as other uses.

Inventors

👤 Edward P. Brandeau

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-11-04 22:21

CPC Classifications

B; B29; B29C; B29C65/00; B29C65/70; B29C65/02; B29C65/34; B29C65/3404; B29C65/3408; B29C65/3412; B29C65/3468; B29C65/3472; B29C65/3484; B29C65/3492; B29C65/3496; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/50; B29C66/51; B29C66/52; B29C66/526; B29C66/5261; B29C66/53; B29C66/532; B29C66/5324; B29C66/53241; B29C66/5326; B29C66/70; B29C66/72; B29C66/723; B29C66/7232; B29C66/72321; B29C66/80; B29C66/81; B29C66/814; B29C66/8145; B29C66/81471; G; G02; G02B; G02B6/00; G02B6/44; G02B6/4439; G02B6/4471; G02B6/4476; H; H01; H01B; H01B7/00; H01B7/17; H01B7/18; H01B7/24; H02; H02G; H02G1/00; H02G1/16; H02G15/00; H02G15/013; B29C65/342; B29C65/3476; B29C66/534; B29C66/71; B29L; B29L2031/00; B29L2031/34; B29L2031/3462

Claims Analysis

Total Claims: 4

Claim 1

Independent Claim 79 words

A method for providing a collar integral with a cable jacket including the steps of: applying a semi-conductive plastic material to the cable jacket; compressing said semi-conductive plastic material axially and radially; placing a pair of spaced apart electrodes on said material; passing electric energy from said electrodes through said material itself in sufficient quantity and for a sufficient time utilizing the conductive and the resistive qualities of said semi-conductive plastic material to melt-bond said material to the jacket.

Claim 2

Independent Claim 79 words

Claim 3

Dependent Claim 27 words

A method as set forth in claim 1 wherein the semi-conductive plastic material is applied to the cable jacket by wrapping said jacket with semi-conductive plastic tape.

Claim 4

Dependent Claim 32 words

A method as set forth in claim 1 wherein the time and quantity of electrical energy are at least 200 watt-minutes for a material having a volume resistivity greater than 1 ohm-cm.

References Cited (Backward Citations)

US2487985A Cited

US2695853A Cited

US2914181A Cited

US3062940A Cited

US3393257A Cited

US3381082A Cited

US3775204A Cited

US4135587A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1986-03-28	1986-09-27	1987-03-29	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1990-03-28	1990-09-27	1991-03-29	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1994-03-28	1994-09-27	1995-03-29	$7700.00	Window Closed / Lapsed

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