Dispenser for dispensing plural materials from a cartridge

Details Dispenser for dispensing plural materials from a cartridge Dispenser for dispensing plural materials from a cartridge

G - Physics

01

F

G01F 11/02 (2006.01) B05C 17/005 (2006.01) B05C 17/01 (2006.01) G01F 11/06 (2006.01)

Patent

CA 2178483

A device (10) for dispensing a predetermined mount of fluid ma- terial from chambers within a car- tridge (148). This device includes a housing, a trigger pivotably con- nected to the housing (12) and a plunger (18) having teeth (108) on a top side thereof entering the hous- ing and passing through an upper part of the trigger (46). A ratchet (110) is attached to the upper part of the trigger and engaged between the plunger teeth. When force is ap- plied to the trigger, the ratchet is pushed forward. When the trigger is released the ratchet moves back- ward causing the plunger to move with the ratchet. The plunger moves backward a short distance until the force applied by the ratchet is over- come through frictional engagement between the plunger and a frictional brake (104, 106) mounted on the housing, at that point the ratchet slides over the next tooth behind it on top of the plunger.

Dispositif (10) permettant de distribuer une quantité prédéterminée d'une matière coulante à partir de chambres ménagées dans une cartouche (148). Ce dispositif comprend un boîtier, une gâchette accouplée pivotante au boîtier (12), ainsi qu'un piston (18) muni de dents (108) sur sa partie supérieure, qui pénètre dans le boîtier en passant à travers une partie supérieure de la gâchette (46). Un cliquet (110) est fixé à la partie supérieure de la gâchette et est en prise avec les dents du piston. Lorsqu'une force est appliquée à la gâchette, le cliquet est poussé en avant. Lorsque cette dernière est libérée, le cliquet recule, entraînant le piston. Ce dernier recule sur une petite distance jusqu'à ce que la force appliquée par le cliquet soit annulée par le frottement entre le piston et un frein à friction (104, 106) monté sur le boîtier, le cliquet coulissant alors sur la dent postérieure suivante se trouvant sur le piston.

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