F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 43/06 (2006.01) F04B 43/067 (2006.01) F04B 45/053 (2006.01)
Patent
CA 2557253
A pump that has a cavity (13) in which is located a flexible membrane (14). An inlet (24) opens into the cavity (13) and is associated with a valve (27). A valve (28) is likewise provided in an outlet (25). Also opening into cavity (13) is a port (22) to which means for applying negative and positive pressures can be connected whereby the flexible membrane (14) can be moved to its two states corresponding to completion of inlet and exhaust of a pumping cycle.
L'invention concerne une pompe qui comporte une cavité (13) dans laquelle est placée une membrane flexible (14). Un orifice d'entrée (24) aboutissant dans la cavité (13) est associé à une soupape (27). Une soupape (28) est prévue de façon identique dans un orifice de sortie (25). Des moyens pouvant être reliés à un orifice (22) aboutissant également dans la cavité (13) permettent d'appliquer des pressions négatives et positives pour déplacer la membrane flexible (14) entre ses deux états, qui correspondent à la mise en oeuvre des étapes d'aspiration et de refoulement d'un cycle de pompage.
Marks & Clerk
Precision Dispensing Systems Limited
LandOfFree
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