(19)

(11)

EP 1 579 729 A2

(12)

(43) Date of publication: 28.09.2005 Bulletin 2005/39 (21) Application number: 00920144.3 (22) Date of filing: 05.04.2000

(51) International Patent Classification (IPC)7: H05B 1/00, H01H 36/00 (86) International application number: PCT/US2000/008997 (87) International publication number: WO 2000/070914 (23.11.2000 Gazette 2000/47)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 17.05.1999 US 313456 02.03.2000 US 518058 (71) Applicant: Hermetic Switch, Inc. Chickasha, OK 73018 (US)	(72) Inventors: POSEY, David, Tyler Chickasha, OK 73018 (US) MORGAN, Raymond, Lee Norman, OK 73072 (US) (74) Representative: Wain, Christopher Paul et al A.A. Thornton & Co. 235 High Holborn London WC1V 7LE London WC1V 7LE (GB) (56) References cited: :