Pipe joints or couplings – With assembly means or feature – Thread-cutting means
Patent
1999-06-10
2000-08-15
Arola, Dave W.
Pipe joints or couplings
With assembly means or feature
Thread-cutting means
285 391, 285251, 285422, 285423, F16L 3500
Patent
active
061024422
ABSTRACT:
The present invention describes an improved connector for attaching flexible metallic and non-metallic conduit to electrical panel or junction boxes. The improved connector comprises a two pieces. The first piece comprises a metallic cylindrical inner body section, having an integral collar extending from the metallic cylindrical inner body section. The outer circumference of the inner body section has threads at one end thereof for grabbing the interior surface of the flexible conduit and pulling it toward the collar, while the other end of the metallic cylindrical inner body is equipped with external threads for engagement with an electrical panel or junction box. The second piece comprises a non-metallic resilient seat member or ferrule friction fit onto the conduit engaging end of the metallic cylindrical inner body that is engaged by the conduit end as the conduit is threaded onto the cylindrical inner body.
REFERENCES:
patent: 2484192 (1949-10-01), Squiller
patent: 2580818 (1952-01-01), Mundy et al.
patent: 3992044 (1976-11-01), Muslin
patent: 4457544 (1984-07-01), Snow et al.
patent: 5240291 (1993-08-01), Zornow
Arlington Industries Inc.
Arola Dave W.
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