Patent ID: 7648052
Filing Date: 2010-01-19
Classification: B05C,B29C,B29K

Abstract:
1. A viscous medium feeder for providing medium droplets having substantially even amounts, comprising: an inlet; an outlet; a tubular portion having an internal thread connected, at one end thereof, to said inlet, and connected, at the other end thereof, to said outlet, said tubular portion being elastic; a rotatable shaft having a cylindrical surface of constant radius arranged in and extending coaxially with said tubular portion, said shaft abutting inner wall portions of said tubular portion; and a drive motor connected to said shaft, wherein said inner wall portions comprise a substantially constant diameter portion and an adjacent portion with a ridge of said internal thread, an edge portion of said inlet is arranged in the substantially constant diameter portion at one end of the elastic tubular portion and extends through a side wall of the elastic tubular portion, and said substantially constant diameter inner wall portion being arranged for sealing abutment against said shaft; and wherein said inlet ends at the beginning of said internal thread.