Title (en)

METHOD OF PROVIDING A FACE SEAL

Publication

EP 0250272 A3 19881130 (EN)

Application

EP 87305538 A 19870622

Priority

GB 8615112 A 19860620

Abstract (en)

[origin: EP0250272A2] A method of providing a face seal at an end (11) of a tube (10) comprises the steps of displacing an end (22) of the tube (10) to provide a radially inwardly extending region, providing a groove (13) in a longitudinally outwardly facing end (11) of the inwardly extending region to receive a seal (14).

IPC 1-7

B21D 41/04

IPC 8 full level

B21D 41/04 (2006.01)

CPC (source: EP)

B21D 41/04 (2013.01); B21J 5/063 (2013.01); B21K 21/14 (2013.01)

Citation (search report)

• [X] US 1834581 A 19311201 - DENT FERRELL, et al
• [Y] FR 896994 A 19450308 - MANNESMANN ROEHREN WERKE AG
• [Y] DE 927063 C 19550428 - RHEINISCHE ROEHRENWERKE AG
• [Y] FR 2430277 A1 19800201 - ROBUR WERKE ZITTAU VEB [DD]
• [A] FR 2549195 A1 19850118 - NIHON RADIATOR CO [JP]
• [A] FR 1063620 A 19540505
• [A] GB 1131569 A 19681023 - GKN SCREWS FASTENERS LTD
• [A] US 2227820 A 19410107 - BRATZ OTTO J
• [A] FR 832419 A 19380927
• [Y] PATENT ABSTRACTS OF JAPAN, vol. 3, no. 133 (C-63), 7th November 1979, page 43 C 63; & JP-A-54 110 962 (SANYO DENKI K.K.) 30-08-1979

Designated contracting state (EPC)

AT BE DE FR GB IT NL SE

DOCDB simple family (publication)

EP 0250272 A2 19871223; EP 0250272 A3 19881130; GB 2191826 A 19871223; GB 2191826 B 19891206; GB 8615112 D0 19860723

DOCDB simple family (application)

EP 87305538 A 19870622; GB 8615112 A 19860620