(19)
(11) EP 0 596 966 A1

(12)

(43) Date of publication:
18.05.1994 Bulletin 1994/20

(21) Application number: 92916332.0

(22) Date of filing: 16.07.1992
(51) International Patent Classification (IPC): 
G01F 23/ 28( . )
G01F 25/ 00( . )
G01N 29/ 024( . )
G01F 23/ 296( . )
G01N 29/ 00( . )
G01V 1/ 00( . )
(86) International application number:
PCT/US1992/005892
(87) International publication number:
WO 1993/003340 (18.02.1993 Gazette 1993/05)
(84) Designated Contracting States:
DE GB IT NL

(30) Priority: 29.07.1991 US 19910737180

(71) Applicant: KAY-RAY/SENSALL, INC.
Mount Prospect, IL 60056-2180 (US)

(72) Inventors:
  • ESPIN, Alexander, J.
    Skoke, IL 60076 (US)
  • ROSSELSON, Boris, S.
    Des Plaines, IL 60016 (US)

(74) Representative: Cross, Rupert Edward Blount, et al 
BOULT, WADE & TENNANT 27 Furnival Street
London EC4A 1PQ
London EC4A 1PQ (GB)

   


(54) TIME GATE ULTRASONIC SENSOR AND METHOD