Splice closure with animal protection

Details Splice closure with animal protection Splice closure with animal protection

1994-09-30

1996-10-22

Kincaid, Kristine L.

Electricity: conductors and insulators

Conduits, cables or conductors

Combined

H05K 503

Patent

active

055679145

ABSTRACT:
An article such as a conduit or cable, or a splice closure for a cable, is provided with improved resistance to animal damage by applying a layer of abrasive material to the article. The abrasive material is not only sufficiently hard and thick to act as a physical barrier, but its abrasive nature creates such a harsh, unpleasant grating effect that the animal tends to not attack it at all. The preferred embodiments of the article use either a plurality of granules to form the abrasive material, or a mesh substrate having an abrasive coating thereon. The material should have an effective grit value of no more than 325, and preferably no more than 100. The abrasive material may be applied using an adhesive or, where the conduit/closure is a thermoplastic polymer, various methods are provided for embedding the abrasive material in the polymeric wall.

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Brochure entitled "Tests of Pocket Gophers Gnawing Electric Cables" by Walter E. Howard, Univ. of California, Davis. pp. 296-300. Journal of Wildlife Management, vol. 17, No. 3, Jul. 1953.
"Rodent Protective Sheath Is Necessary For Most Fiber Optic Cables" Lightquide Digest, 1992 Issue No. 2, pp. 1-3, by AT&T Network Systems.
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3M Brochure "900 Series Variable-Sized Buried Closure" Nov. 1993, Issue 2, 34-7035-1071-8.

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