Heat shrinkable strain relief device and method of forming same

Details Heat shrinkable strain relief device and method of forming same Heat shrinkable strain relief device and method of forming same

1987-10-28

1989-07-18

Askin, Laramie E.

Electricity: conductors and insulators

Conduits, cables or conductors

Accessories

156 86, 174153G, 174DIG8, 248 56, H02G 15007, H02G 322, H01R 1358

Patent

active

048495824

ABSTRACT:
A heat shrinkable strain relief device protects electrical wires passing through an aperture in a partition and secures the wires to the partition. The strain relief includes a first heat shrunk tube overlying the wires and having a diameter that is no larger than the diameter of the aperture. A second heat shrunk tube overlying a portion of the first heat shrunk tube has an outer diameter greater than that of the aperture. The strain relief is located in the partition with only a length of first heat shrunk tube that extends outward from the second heat shrunk tube passing through the aperture. A third optional heat shrunk tube positioned on the first heat shrunk tube is spaced apart from the second tube by a distance approximately equal to the thickness of the partition. The strain relief device is formed by locating lenghts of heat shrinkable tubing in predetermined positions on the wires, and applying heat.

REFERENCES:
patent: 1565321 (1925-12-01), Frantz
patent: 3423518 (1969-01-01), Weagant
patent: 3891790 (1975-06-01), Kierstead
patent: 4006956 (1977-02-01), Allgaier
patent: 4174463 (1979-11-01), Albert Jr.
patent: 4524038 (1985-06-01), Heinemann et al.
patent: 4629275 (1986-12-01), Maul
patent: 4645295 (1987-02-01), Pronovost

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