Pipe joint structure

Details Pipe joint structure Pipe joint structure

1996-09-04

1999-03-30

Shackelford, Heather

Pipe joints or couplings

Packed

Flanged pipe

285 85, 285374, 285353, F16L 1907

Patent

active

058879137

ABSTRACT:
In a housing formed in a drain pipe joint, a lock receiving portion on the near end face, an internal thread portion and a taper portion are formed. Also, in a screw ring, lugs are formed in six locations and a external thread is formed, both around the circumference of the screw ring, a flat face portion is formed perpendicular to the axial direction of the screw ring, and hexagonal sockets and internal threads are formed parallel to the axial direction of the screw ring. Then, the screw ring is secured on the drain pipe joint by fitting a tool such as a spanner to flat face portions formed in the lugs, or by fitting a hexagonal bar spanner or the like to the hexagonal sockets, so that the drain pipe and the drain pipe joint can be connected. Further, stopper screws are screwed onto the internal threads formed in the lugs, whereupon the tips of the stopper screws push the surface of the lock receiving portion formed in the drain pipe joint, securing the drain pipe joint and screw ring.

REFERENCES:
patent: 846704 (1907-03-01), Stucy
patent: 1253065 (1918-01-01), Looze
patent: 1869915 (1932-08-01), Sample
patent: 1911659 (1933-05-01), Weaver
patent: 2795985 (1957-06-01), Wilson
patent: 3159302 (1964-12-01), Latham et al.
patent: 3971614 (1976-07-01), Paoli et al.
patent: 5145220 (1992-09-01), Burkholder

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