VOLUMETRIC-DISPLACEMENT DEVICE HAVING MOLDED PISTONS AND CYLINDERS - Patent 1021642

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EP 1 021 642 A1

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(43)	Date of publication:
	26.07.2000 Bulletin 2000/30

(21)	Application number: 98935719.9

(22)	Date of filing: 17.07.1998

(51)	International Patent Classification (IPC)⁷: F01B 9/00, F04B 39/10, F16J 9/00, F16J 10/02

(86)	International application number:
	PCT/US9814/725

(87)	International publication number:
	WO 9904/140 (28.01.1999 Gazette 1999/04)

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

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Priority:

17.07.1997 US 52839 P

(71)	Applicant: Protocol Systems, Inc.
	Beaverton, OR 97005-7107 (US)

(72)	Inventor:
	Patterson, Paul,D Portland, OR 97202 (US)

(74)	Representative: Zeitler, Giselher, Dipl.-Ing. et al
	PatentanwälteZeitler & DickelPostfach 26 02 51 80059 München 80059 München (DE)

(54)	VOLUMETRIC-DISPLACEMENT DEVICE HAVING MOLDED PISTONS AND CYLINDERS