(19)
(11) EP 1 012 551 A1

(12)

(43) Date of publication:
28.06.2000 Bulletin 2000/26

(21) Application number: 98936830.3

(22) Date of filing: 10.07.1998
(51) International Patent Classification (IPC)7G01L 7/04
(86) International application number:
PCT/US9814/405
(87) International publication number:
WO 9902/955 (21.01.1999 Gazette 1999/03)
(84) Designated Contracting States:
DE FR GB IE

(30) Priority: 11.07.1997 US 52271 P
12.02.1998 US 227731

(71) Applicant: Dresser Industries Inc.
Dallas,Texas 75201 (US)

(72) Inventors:
  • DEFRANCESCO, David, C.
    Branford, CT 06405 (US)
  • DONAHUE, Brian, T.
    Waterbury, CT 06705 (US)
  • ROSEN, Louis, A.
    Huntington, CT 06484 (US)
  • TURBEVILLE, John, A.
    Stratford, CT 06497 (US)
  • BREGY, Louis, F.
    Weston, CT 06883 (US)

(74) Representative: HOFFMANN - EITLE 
Patent- und RechtsanwälteArabellastrasse 4
81925 München
81925 München (DE)

   


(54) ULTRA-HIGH PURITY BOURDON TUBE PRESSURE GAUGE SYSTEM