Patent ID: 6467656
Filing Date: 2002-10-22
Classification: G01F

Abstract:
A constant-quantity powder dispenser which has a main body accommodating a mass of a powdered material and which is arranged to deliver the powdered material through an outlet opening, by a shaking action of the main body, said constant-quantity powder dispenser comprising:a valve seat in which said outlet opening is open in said main body; a closure ball movable to be seated on said valve seat to close said outlet opening at a position within an interior space of said main body; and a coil spring disposed within said interior space of said main body, and extending from said valve seat, said coil spring having a coil accommodating said closure ball therein such that said closure ball is movable within said coil, between a first position and a second position, in a vertical direction while said main body is oriented downwards with said outlet opening being open, and extending outwardly from said main body, said closure ball being seated on said valve seat when said closure ball is located at said first position, and being spaced apart from said valve seat in said vertical direction, to permit said powdered material to be delivered through said outlet opening, when said closure ball is located at said second position, wherein said closure ball is reciprocated in said vertical direction between said first and second positions to deliver said powdered material through said outlet opening, when said main body is reciprocated in said vertical direction while said main body is oriented downwards with said outlet opening being open downwards outwardly of said main body.