Method of forming a gasket with centering collar

Details Method of forming a gasket with centering collar Method of forming a gasket with centering collar

1996-12-03

1999-02-02

Fiorilla, Christopher A.

Plastic and nonmetallic article shaping or treating: processes

Forming electrical articles by shaping electroconductive...

264105, 264294, 264320, 264322, C04B 3500

Patent

active

058660569

ABSTRACT:
The invention concerns a process for production of a seal using a compactable sealing material, especially a fluoropolymer, to seal flanges, preferably matching flanges, especially to produce a ring packing to seal flange connections for pipes, in which the seal is provided on the outer and/or inner periphery with a centering collar or with several centering collar sections spaced around the periphery. The invention also concerns an apparatus to produce a seal using a compactable sealing material, especially a fluoropolymer, to seal flanges, preferably matching flanges, especially an apparatus to produce a ring packing to seal flange connections for pipes, in which the seal is provided on the outer and/or inner periphery with a centering collar with several centering collar sections spaced around the periphery, and preferably an apparatus to execute the process according to the invention.

REFERENCES:
patent: 1872482 (1932-08-01), Messing
patent: 2990206 (1961-06-01), Bagdon
patent: 3194860 (1965-07-01), Ehrreich
patent: 3230290 (1966-01-01), Nelson
patent: 3549445 (1970-12-01), McMahon
patent: 3929341 (1975-12-01), Clark
Literature: "Expanded PTFE Gaskets," Konstruktion, dated Nov. 1993, pp. A49 (No Translation).

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