(19)

(11)

EP 0 197 130 A1

(12)

(43) Date of publication: 15.10.1986 Bulletin 1986/42 (21) Application number: 85905272.0 (22) Date of filing: 08.10.1985

(51) International Patent Classification (IPC):  A61B 5/ 0215( . ) G01L 19/ 00( . ) G01L 9/ 00( . ) (86) International application number: PCT/US1985/001957 (87) International publication number: WO 1986/002446 (24.04.1986 Gazette 1986/09)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 12.10.1984 US 19840660455 09.08.1985 US 19850764665 (71) Applicant: AMETEK, INC. New York, New York 10022 (US)	(72) Inventors: FRANK, Thomas, P. Warminster, PA 18974 (US) PECHTER, David Tiusville, NJ 08560 (US) McFADDEN, Harold, Edward Dresher, PA 19025 (US)