(19)
(11) EP 0 334 876 A1

(12)

(43) Date of publication:
04.10.1989 Bulletin 1989/40

(21) Application number: 87908067.0

(22) Date of filing: 18.11.1987
(51) International Patent Classification (IPC): 
G01F 23/ 14( . )
G01F 23/ 18( . )
G01M 3/ 32( . )
G01F 23/ 00( . )
G01F 23/ 60( . )
(86) International application number:
PCT/US1987/003004
(87) International publication number:
WO 1988/004031 (02.06.1988 Gazette 1988/12)
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 20.11.1986 US 19860933472

(71) Applicant: NDE TECHNOLOGY, INC.
Torrance, CA 90503 (US)

(72) Inventor:
  • MASTANDREA, John, R.
    Rancho Palos Verdes, CA 90247 (US)

(74) Representative: Kremer, Robert A.M., et al 
BUREAU D.A. CASALONGA - JOSSE Morassistrasse 8
D-80469 München
D-80469 München (DE)

   


(54) VOLUMETRIC LEAK DETECTION SYSTEM FOR UNDERGROUND STORAGE TANKS AND THE LIKE