(19)
(11) EP 0 088 753 A1

(12)

(43) Date of publication:
21.09.1983 Bulletin 1983/38

(21) Application number: 81902866.0

(22) Date of filing: 23.09.1981
(51) International Patent Classification (IPC): 
B63B 39/ 06( . )
 G05D 1/ 02( . )
(86) International application number:
PCT/US1981/001281
(87) International publication number:
WO 1983/001137 (31.03.1983 Gazette 1983/08)
(84) Designated Contracting States:
DE FR GB SE

(71) Applicant: QUENTRON, INC.
Bellevue, WA 98007 (US)

(72) Inventors:
  • WEST, Richard D.
    Federal Way, WA 98033 (US)
  • WEST, Donald O.
    Lacey, WA 98503 (US)

   


(54) AUTOMATIC SENSING DEVICE FOR OFF-HORIZONTAL AND OFF-VERTICAL DETECTION