Bellows pump for delivery of liquids

B - Operations – Transporting – 05 – C

Patent

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Details

B05C 17/005 (2006.01) B05B 11/00 (2006.01) B65D 47/34 (2006.01)

Patent

CA 2409934

The invention relates to a liquid delivery pump (1) connected to the neck of a container comprising: a cylindrical hollow body (2) defining a suction and compression chamber (5) communicating with outside through a liquid distribution channel (7); a manually actuated piston (8) slidingly coupled to said hollow body (2); elastic means (12) cooperating with a push button (83) connected to said piston; first valve means (13) adapted to connect said scution chamber (5) with a liquid suction tube (6); second valve means (14) adapted to connect said suction and compression chamber (5) with said distribution channel (7) during the delivery phase. Said distribution channel (7) has a first stationary part (71) made in the plug (23) and a second swinging part (30) consisting of a tube (13) having at the end facing the first stationary part (71) a substantially spherical body (32) whose outer surface closes the first stationary part when said second part is substantially perpendicular to the first part.

La présente invention concerne une pompe de distribution de liquides (1), qui est connectée au col d'un conteneur. Cette pompe comprend un corps cylindrique creux (2), qui définit une enceinte d'aspiration et de compression (5), communiquant avec l'extérieur par l'intermédiaire d'un canal de distribution de liquide (7), un piston à commande manuelle (8), qui est connecté de manière coulissante audit corps creux (2), un système élastique (12), qui coopère avec un bouton poussoir (83) connecté audit piston, un premier système de vanne (13), qui est conçu pour connecter ladite enceinte d'aspiration (5) à un tube d'aspiration de liquide (6), ainsi qu'un second système de vanne (14), qui est conçu pour connecter ladite enceinte d'aspiration et de compression (5) audit canal de distribution (7), lors de la phase de distribution. Ledit canal de distribution (7) présente une première partie fixe (71), qui est formée dans le capuchon (23), et une seconde partie oscillante (30), qui est constituée d'un tube (13) présentant, à l'extrémité faisant face à ladite première partie fixe (71), un corps sensiblement sphérique (32), dont la surface extérieure ferme la première partie fixe lorsque ladite seconde partie est sensiblement perpendiculaire à la première partie.

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