A pump with flexible tube pinch mechanism

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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Details

F16K 7/04 (2006.01) F04B 43/08 (2006.01) F04B 43/12 (2006.01) F04B 45/08 (2006.01) F16K 7/06 (2006.01)

Patent

CA 2294765

A pinch mechanism suitable for use as a valve or as part of a pump. The pinch mechanism comprises a housing (11) within which an elongate conduit element (12) is located. A conduit engagement member (13c) is retained within the housing (11) to be movable transverse to a longitudinal axis of the conduit element (12). The engagement member has an end portion (13d) which engages with the conduit element (12), this end portion (13d) having a cross-sectional dimension less than the lateral inner dimension of the conduit element (12), this lateral dimension being at right angles to the direction of movement of the engagement member (13c).

La présente invention concerne un mécanisme de pincement s'utilisant comme vanne ou s'intégrant à une pompe. Le mécanisme de pincement comporte un carter (11) à l'intérieur duquel se trouve un élément de conduit (12) de forme allongée. Un organe d'appui (13c) sur le conduit est prisonnier à l'intérieur du carter (11) de façon à être mobile transversalement par rapport à l'axe longitudinal de l'élément de conduit (12). L'une des extrémités (13d) de cet organe d'appui vient au contact de l'élément de conduit (12). L'extrémité considérée (13d) présente une dimension en coupe inférieure à la dimension intérieure latérale de l'élément de conduit (12). Cette dimension latérale est orientée perpendiculairement par rapport au sens de déplacement de l'organe d'appui (13c).

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