METHOD AND APPARATUS FOR MONITORING A SUPPLY OF GAS - Patent 0614525

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EP 0 614 525 A1

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(43)	Date of publication:
	14.09.1994 Bulletin 1994/37

(21)	Application number: 92923905.0

(22)	Date of filing: 25.11.1992

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International Patent Classification (IPC):

C02F 3/ 00^{( . )}
G01N 1/ 38^{( . )}
G01N 33/ 00^{( . )}

C02F 3/ 28^{( . )}
G01N 7/ 00^{( . )}

(86)	International application number:
	PCT/GB1992/002170

(87)	International publication number:
	WO 1993/011421 (10.06.1993 Gazette 1993/14)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

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Priority:

26.11.1991 GB 19910025125

(71)	Applicant: WIVENHOE TECHNOLOGY LIMITED
	Colchester, Essex CO4 3SQ (GB)

(72)	Inventors:
	REYNOLDS, Patrick, John Flackwell Heath Buckinghamshire HP10 9BN (GB) BARTINGTON, John, Keith Frating Colchester Essex CO7 7DP (GB)

(74)	Representative: Gillam, Francis Cyril, et al
	SANDERSON & CO. European Patent Attorneys 34, East Stockwell Street Colchester Essex CO1 1ST Colchester Essex CO1 1ST (GB)

(54)	METHOD AND APPARATUS FOR MONITORING A SUPPLY OF GAS