Pipe joints or couplings – Nonmetal to metal – Internal member
Patent
1978-07-24
1980-03-11
Nunberg, Casmir A.
Pipe joints or couplings
Nonmetal to metal
Internal member
285369, 2853827, F16L 1900, F16L 3300, F16L 3318, F16L 3320
Patent
active
041925327
ABSTRACT:
A coupling assembly including a double-female connector for connecting two sections of flexible electrical conduit. An internal abutment between the ends of the connector limits the insertion of the conduit sections. The inner surfaces of the connector on both sides of the abutment are tapered to constrict the inserted conduit sections. The connector has external threading on both ends and external flats between the threading to which a wrench may be applied.
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patent: 3917324 (1975-11-01), Wakatsuki et al.
patent: 4033614 (1977-07-01), Hanson
patent: 4037864 (1977-07-01), Anderson et al.
Nunberg Casmir A.
Pietruszka Carl F.
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