(19)

(11)

EP 1 552 205 A2

(12)

(88) Date of publication A3: 10.06.2004 (43) Date of publication: 13.07.2005 Bulletin 2005/28 (21) Application number: 03764647.8 (22) Date of filing: 15.07.2003

(51) International Patent Classification (IPC)7: F16L 27/00 (86) International application number: PCT/US2003/022025 (87) International publication number: WO 2004/008013 (22.01.2004 Gazette 2004/04)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR (30) Priority: 15.07.2002 US 395823 P (71) Applicant: Dormont Manufacturing Company Export, PA 15632 (US)	(72) Inventors: SEGAL, Jerome, J. Pittsburg, PA 15218 (US) SEGAL, Evan, J. Pittsburg, PA 15238 (US) ANGUS, Michael, T. Derry, PA 15627 (US) LYON, Michael Pittsburg, PA 15239 (US) (74) Representative: W.P. THOMPSON & CO.  Kings Building,South Church Side Kingston-upon-HullEast Yorkshire HU1 1RR Kingston-upon-HullEast Yorkshire HU1 1RR (GB)