Double containment fitting

Details Double containment fitting Double containment fitting

1994-11-14

1995-09-12

Reese, Randolph A.

Pipe joints or couplings

For branched path

T-type

285915, 285179, 138113, F16L 4702

Patent

active

054492041

ABSTRACT:
A double containment fitting for use with a double containment pipe having an inner carrier pipe and an outer containment pipe. The fitting includes an inner containment member having a pair of open ends and a pair of centering spiders, each spider adhesively engaged with the exterior of the inner containment member near an end of the inner containment member. An outer containment member has a pair of open ends, each open end including a first portion having an inner radius larger than the exterior radius of the centering spider and a second portion adjacent the first portion having an inner radius less than the exterior radius of the centering spider, providing a shoulder for abutting an edge of the centering spider.

REFERENCES:
patent: 2475635 (1949-07-01), Parsons
patent: 2696835 (1954-12-01), Kaiser
patent: 2896669 (1959-07-01), Broadway et al.
patent: 3546356 (1970-12-01), Graybill
patent: 4149739 (1979-04-01), Morris
patent: 4522234 (1985-06-01), Kellner et al.
patent: 4754782 (1988-07-01), Grantham
patent: 4779652 (1988-10-01), Sweeney
patent: 4786088 (1988-11-01), Ziu
patent: 4886305 (1989-12-01), Martin
patent: 4930544 (1990-06-01), Ziu

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