Accession Number : ADP000567

Title :   Instantaneous Cable Sealing Technique: Theory and Typical Applications,

Corporate Author : MINNESOTA MINING AND MFG CO ST PAUL TELCOMM PRODUCTS DIV

Personal Author(s) : Keith,Roger H.

Report Date : NOV 1982

Pagination or Media Count : 11

Abstract : Prestretched tubing is made from an elastomeric sleeve, factory expanded onto a core which supports it. Unwinding the core applies the sleeve, collapsing it onto the cable or connection with continuing shrink force throughout its service life. Unlike heat shrink and two-part seal systems, no source of heat or energy, wet or not adhesives are needed in most uses, and the action is immediate on initiation of core collapse, freeing results from operator technique. The seal is made at once, even in rain, snow, immersion or zero visibility. Tube materials and shrink characteristics are given with practical product sizes and capabilities. Environmental tests show excellent protection of CATV coax connectors, suggesting solution of many fiber optics splice/connect problems. Uses for communications battery clamps, case gland seals, cable splices, and plenum cable sheath repair are shown. Molded sleeves allow special shapes; multiple cores and various materials are possible. New designs hold capable pressures or apply torque prestress to lock twist and bayonet connections. (Author)

Descriptors :   *Fiber optics transmission lines, *Electric cables, *Electric wire, *Symposia, *Sleeves, Adhesives, Seals(Stoppers), Tubes, Linings, Insulation, Elastomers, Sealing compounds, International

Distribution Statement : APPROVED FOR PUBLIC RELEASE