INTRUSION DETECTION SYSTEM FOR OPERATING INDUSTRIAL MACHINES

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EP 0 249 636 A1

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(43)	Date of publication:
	23.12.1987 Bulletin 1987/52

(21)	Application number: 87900710.0

(22)	Date of filing: 06.01.1987

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International Patent Classification (IPC):

G07G 1/ 12^{( . )}
F16P 3/ 14^{( . )}
G07G 1/ 14^{( . )}

B30B 15/ 00^{( . )}
G01V 8/ 20^{( . )}

(86)	International application number:
	PCT/US1987/000019

(87)	International publication number:
	WO 1987/004259 (16.07.1987 Gazette 1987/15)

(84)	Designated Contracting States:
	BE FR IT SE

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Priority:

13.01.1986 US 19860818275

(71)	Applicant: DATA INSTRUMENTS INC.
	Acton, MA 01720 (US)

(72)	Inventor:
	WEBER, Daniel, R. Groton, MA 01450 (US)

(74)	Representative: Wombwell, Francis, et al
	Potts, Kerr & Co. 15, Hamilton Square Birkenhead Merseyside L41 6BR Birkenhead Merseyside L41 6BR (GB)

(54)	INTRUSION DETECTION SYSTEM FOR OPERATING INDUSTRIAL MACHINES