Electricity: conductors and insulators – Conduits – cables or conductors – Accessories
Patent
1974-10-23
1976-11-16
Askin, Laramie E.
Electricity: conductors and insulators
Conduits, cables or conductors
Accessories
29450, 745519, 138 96R, 156294, 174 74A, H02G 1504
Patent
active
039925706
ABSTRACT:
A device to form an effective environmental tight seal on a free end of cables, conduits and the like is disclosed. The subject device is formed by a unitary member of resilient material, such as rubber, which has a cylindrical configuration with one permanently closed end. The closed end has a substantially greater thickness than the sidewalls of the device. The other end is preferably temporarily closed. The device is applied by forcing the permanently closed end against the free end of the cable so that the closed end passes through the cylindrical portion until the device is reversed upon itself and is in sealing gripping engagement on the cable or the like. When one end of the device is temporarily closed by a sealing member, the device will be slightly inflated as it is pushed against the cable end thereby easing application of the device. The temporary seal will be removed by penetration or when internal pressure increases beyond a limit.
REFERENCES:
patent: 687249 (1901-11-01), Miller
patent: 1007730 (1911-11-01), Pozzi
patent: 1435214 (1922-11-01), Coombs
patent: 1458247 (1923-06-01), Schleper
patent: 1556966 (1925-10-01), Selig
patent: 2145705 (1939-01-01), Wodtke
patent: 2197617 (1940-04-01), Magran
patent: 2618986 (1952-11-01), Hungerford
patent: 2674647 (1954-04-01), Dibner
patent: 2803056 (1957-08-01), Brissey, Jr. et al.
patent: 3749093 (1973-07-01), Bloom
AMP Incorporated
Askin Laramie E.
Egan Russell J.
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