Diaphragm pump

Details Diaphragm pump Diaphragm pump

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 43/02 (2006.01) B05B 11/00 (2006.01)

Patent

CA 2410792

The invention concerns a pump comprising a body (1) designed to communicate in its lower part with a dip tube (2) through an intake valve and to be connected in its upper part to the rim of a reservoir (R) and containing a metering chamber (10) sealingly closed in its upper part with compression means provided with an outflow valve and a return member capable of being actuated by manual pressure on a dispensing head (T) and provided with a discharge duct (C). The invention is characterised in that said return member comprises an elastically deformable inner diaphragm (3) borne by the dispensing head (T) and co-operating with a rigid cup (4) fixed beneath the head (T) and defining with said diaphragm (3) the metering chamber (10).

L'invention concerne une Pompe du type comprenant un corps (1) destiné à communiquer en partie basse avec un tube plongeur (2) via un clapet d'admission et à se raccorder en partie haute au bord d'un réservoir (R) et renfermant une chambre de dosage (10) obturée de manière étanche en partie supérieure par des moyens de compression munis d'un clapet d'échappement et d'un organe de rappel susceptibles d'être actionnés par appui manuel sur une tête de distribution (T) pourvue d'un conduit d'évacuation (C), caractérisée en ce que ledit organe de rappel comprend une membrane interne (3) élastiquement déformable portée par la tête de distribution (T) et coopérant avec une coupelle rigide (4) fixée sous ladite tête (T) et délimitant avec ladite membrane (3) la chambre de dosage (10).

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