Device for dispensing fluid

B - Operations – Transporting – 05 – B

Patent

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Details

B05B 11/00 (2006.01) B05B 7/00 (2006.01)

Patent

CA 2704367

A pump (14) for dispensing fluid that includes a pump head (30) having a mixing chamber (134) and a porous mem-ber (54). The pump head includes a tube (50) and diaphragm (34). The pump includes a cap (22) having a body (42) defining a cav-ity (101) that receives the tube. The cap is connected to the di-aphragm to define an air chamber (106) communicating with the mixing chamber. The pump includes a spring system (46) received in the tube and cavity. The tube, cavity, and spring system define a liquid chamber (122) that communicates with the mixing cham-ber. The spring system includes a spring (62) positioned to be com-pressed such that liquid is urged from the liquid chamber (122) to the mixing chamber and the diaphragm is configured to be com-pressed such that air is drawn from the air chamber to the mix-ing chamber. The liquid and air commingle into a mixture that is pushed through the porous member to form a product.

L'invention concerne une pompe (14) de distribution de fluide, comprenant une tête de pompe (30) dotée d'une chambre de mélange (134) et d'un organe poreux (54). La tête de pompe comprend un tube (50) et une membrane (34). La pompe comprend un capuchon (22) présentant un corps (42) qui définit une cavité (101) qui reçoit le tube. Le capuchon est relié à la membrane pour définir une chambre à air (106) en communication avec la chambre de mélange. La pompe comprend un système de ressort (46) logé dans le tube et la cavité. Le tube, la cavité et le système de ressort définissent une chambre à liquide (122) qui communique avec la chambre de mélange. Le système de ressort comprend un ressort (62) positionné de façon à être comprimé de telle sorte que du liquide soit chassé de la chambre à liquide (122) dans la chambre de mélange et la membrane est conçue de façon à être comprimée de telle sorte que de l'air soit aspiré de la chambre à air dans la chambre de mélange. Le liquide et l'air se combinent en un mélange qui est expulsé à travers l'organe poreux pour former un produit.

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