(19)

(11)

EP 2 240 289 A1

(12)

(43) Date of publication: 20.10.2010 Bulletin 2010/42 (21) Application number: 09701486.4 (22) Date of filing: 15.01.2009

(51) International Patent Classification (IPC):  B21K 21/06(2006.01) (86) International application number: PCT/US2009/031033 (87) International publication number: WO 2009/091849 (23.07.2009 Gazette 2009/30)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 18.01.2008 US 11532 P 06.06.2008 US 134671 (71) Applicant: Penn United Technologies, Inc. Cabot, Pennsylvania 16023 (US)

(72) Inventors: JONES, D. Patrick Sarver Pennsylvania 16055 (US) KELLEY, Michael Wayne Sarver Pennsylvania 16055 (US) POLLICK, Richard Duane Sarver Pennsylvania 16055 (US) SHAW, Louis Carl Saxonburg Pennsylvania 16056-9421 (US) BERTIERI, David, L., Jr. Natrona Heights Pennsylvania 15065 (US) LASSINGER, Jason Lee Saxonburg Pennsylvania 16056 (US) NOAH, Mark P. Butler Pennsylvania 16002 (US) MARRACCINI, James J. Butler Pennsylvania 16002 (US) (74) Representative: Thacker, Darran Ainsley  Serjeants 25 The Crescent King Street Leicester LE1 6RX Leicester LE1 6RX (GB)