B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 47/34 (2006.01) B05B 11/00 (2006.01)
Patent
CA 2110063
A paste dispenser for dispensing doses of liquids and in particular paste-like masses has a feed pump actuated by finger pressure capable of feeding in the direction of actuation and of aspirating by means of restoring spring, whose feed and suction valves may be controlled by differences of pressure as well as by additional mechanical forces. The dispenser has a reservoir whose volume diminishes as the product is removed, thanks, to resilient walls, and a closure element linked to the feed actuating device and arranged in the product removal bore. A closed feed valve lies with its planar surface and with a seal linked to a piston on a plane and a closed suction valve forms with its planar surface and a front wall another plane that delimits the stroke of the piston. Contact zones are available between the suction valve and the feed valve. A closure element can be moved by a lever in the opening direction. Finally, the piston can be moved in the feeding direction. The restoring spring arranged outside the pump chamber is fitted between a shoulder and a flange linked to the piston. The sliding guide linked to a dosing head has a circular edge that rests on a stop.
Katz Otto
Marks & Clerk
LandOfFree
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