Depression head for pump and depression head type discharge...

B - Operations – Transporting – 05 – B

Patent

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Details

B05B 11/00 (2006.01) B65D 47/34 (2006.01) B65D 83/76 (2006.01)

Patent

CA 2734114

The present invention provide a depression head type discharge pump with a nozzle being open and shut by forward and backward displacements of the valve rod member by means of a lever member and a first bias member, wherein a second bias means is interposed between base and tip portions of the valve rod member to prevent the air from flowing back. A depression head for a pump comprises a head body 24 having a liquid conduit 36 communicating with a stem 6 of a discharge pump and hanging from a lower face of a transverse cylinder portion 30 provided with a nozzle 34 opened at its leading edge portion, and is constructed so that a valve rod 52 provided in the cylinder portion 30 is displaced backwardly and forwardly when the head body 24 is depressed; the valve rod member 52 is formed by a base portion 58 and a tip portion 66; and a second bias means 70 is interposed between the base portion 58 and the tip portion 66.

La présente invention concerne une pompe de décharge équipée dune tête denfoncement du type dans lequel louverture et la fermeture de léjecteur seffectuent par le déploiement et lescamotage dun organe à tige de manuvre par un levier et un premier moyen de compression, un second moyen de compression étant prévu entre la base et lextrémité de lorgane à tige de manuvre pour interdire un flux dair inverse. Linvention concerne également une pompe de décharge de type à tête denfoncement comportant un corps de tête (24) configuré par la présence dune conduite de circulation de liquide (36) vers la surface inférieure dune section cylindrique en regard latéralement (30) pour se prolonger verticalement vers le bas depuis la surface inférieure, la conduite de circulation de liquide (36) communiquant avec une tige (6) dune pompe de décharge, la section cylindrique (30) comprenant un éjecteur (34) ouvert à lavant. Lors de lenfoncement du corps de tête (24), un organe à tige de manuvre (52) monté dans la section cylindrique (30) savance ou se rétracte. Lorgane à tige de manuvre (52) est constitué de la base (58) et de lextrémité (66), et un second moyen de compression (70) est monté entre la base (58) et lextrémité (66).

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