Expansion-deflection coupling

Details Expansion-deflection coupling Expansion-deflection coupling

1977-03-01

1978-08-22

Krizmanich, George H.

Electricity: conductors and insulators

Conduits, cables or conductors

Combined

174 78, 285235, H02G 1508

Patent

active

041090977

ABSTRACT:
A coupling which allows for linear or angular displacement as well as for expansion or contraction is comprised of two independent hubs adapted to be threaded on the ends of opposed spaced apart conduits, a flexible grounding strap connected between said hubs, a flexible watertight jacket substantially surrounding and clamped to said hubs at each end and a tubular raceway having flared ends moveably retained within each of said hubs to protect wires running through the coupling.

REFERENCES:
patent: 1044962 (1912-11-01), Witzenmann
patent: 1242874 (1917-10-01), Sheafe et al.
patent: 2885461 (1959-05-01), Cafiero

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