Title:
CONSTANT FEEDING DEVICE
Document Type and Number:
Japanese Patent JPH04142273
Kind Code:
A
Abstract:
PURPOSE: To make it possible to feed a liquid or paste in response to the ascending quantity of a piston, accurately from a discharge port on an upper lid by- providing a vacuum drawing mechanism which removes air in gap between a tank and a bag.
CONSTITUTION: A bag 7 in which a liquid or paste 1 is filled is placed in a tank 3, and an upper lid 2 is set. A vacuum pump 8 is provided for the tank 3, and air between the bag and tank is removed through a discharge pipe which is provided on the side surface. Therefore, the bag joins to the tank. Then, by raising a piston 4, the liquid or paste in the bag 7 is discharged from a discharge port 9, in response to the raised quantity of the piston 4.
Inventors:
MATSUKAWA KAZUMASA
SHIMAZAWA YASUO
KUWATA KAZUHIKO
SHIMAZAWA YASUO
KUWATA KAZUHIKO
Application Number:
JP25568990A
Publication Date:
May 15, 1992
Filing Date:
September 26, 1990
Export Citation:
Assignee:
NIPPON DENKI HYOGO KK
International Classes:
B65D83/00; (IPC1-7): B65D83/00
Attorney, Agent or Firm:
Uchihara Shin