Electricity: conductors and insulators – Conduits – cables or conductors – Accessories
Patent
1980-10-21
1982-04-06
Askin, Laramie E.
Electricity: conductors and insulators
Conduits, cables or conductors
Accessories
174 65SS, 277115, 277122, 277124, 277125, H02G 322, F16J 1510, H01R 1358
Patent
active
043237274
ABSTRACT:
Cable strain relief and sealing apparatus comprising a sleeve formed of flexible and resilient material having a substantially cylindrical inner surface and a tapered outer surface. The sleeve may be tapered inwardly from the mid-portion thereof to both end portions thereof or, alternatively, may be provided with a taper in one direction only. A plurality of oppositely extending axial slots are formed in the sleeve so that, upon radial inward compression of the sleeve by a housing member or the like enclosing the sleeve, the internal surface of the sleeve will tightly grip a cable passing therethrough. A sealing bushing formed of flexible and resilient material may be provided at each tapered end of the sleeve, and may have a taper that is substantially the same as that of the sleeve. Each bushing comprises an annular flange which extends within the adjacent end of the sleeve so that a tight sealing engagement between the sleeve, bushing and the cable is effected upon compression of the sleeve and the bushing by the surrounding housing members.
REFERENCES:
patent: 987296 (1911-03-01), Hahn
patent: 1714590 (1929-05-01), Dake
patent: 2170393 (1939-08-01), Tornblom
Askin Laramie E.
Crouse-Hinds Company
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