A peristaltic pump - Patent 0242077

(19)

(11)

EP 0 242 077 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	20.07.1988 Bulletin 1988/29

(43)	Date of publication A2:
	21.10.1987 Bulletin 1987/43

(21)	Application number: 87302712

(22)	Date of filing: 30.03.1987

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

(30)

Priority:

12.04.1986 GB 8608950

(71)	Applicant: FISONS plc
	()

(72)	Inventors:
	Bowley, Alan Reginald () Ross, Derek William ()

(54)	A peristaltic pump

(57) A peristaltic pump (l) capable of compressing a flexible walled tube (9) between a pressure member (5) and a pressure plate (6).
In order for the force applied to the flexible walled tube (9) to be constant the pressure member (5) and pressure plate (6) are hydraulically biased together. In particular the pressure member (5) and pressure plate (6) are biased together by means of compressed air contained in a pressure chamber (7).

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