Resin pipe provided with retainer fitting

Details Resin pipe provided with retainer fitting Resin pipe provided with retainer fitting

1995-07-24

1996-12-10

Nicholson, Eric K.

Pipe joints or couplings

Nonmetal to metal

285258, 285256, F16L 3320

Patent

active

055824358

ABSTRACT:
A resin pipe provided with a retainer fitting at an end thereof having an open end portion. The open end portion has a small outer diameter portion adjacent the open end which is provided with a seal fixed onto an outer circumferential surface thereof, and a large outer diameter portion extends axially from the small diameter portion on which is provided a crimping groove formed circumferentially on the outer circumferential surface thereof to protect a seal between the retainer fitting from crimping forces. The retainer fitting has an inner cylinder portion, a small-diameter outer cylinder portion extending axially round the opening end from the inner cylinder portion, an enlarged-diameter portion extending outwardly from the small-diameter outer cylinder portion, and a large-diameter outer cylinder portion extending axially from the enlarged-diameter portion so as to cover the outer circumferential surface of the large diameter portion.

REFERENCES:
patent: 2685458 (1954-08-01), Shaw
patent: 3006664 (1961-10-01), Appleton et al.
patent: 4335753 (1982-06-01), Frye
patent: 5295718 (1994-03-01), Bartholomew

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