Liquid material discharge apparatus and method
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United States of America Patent
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Mar 20, 2018
Issued Date -
N/A
app pub date -
Dec 31, 2015
filing date -
Oct 7, 2011
priority date (Note) -
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Abstract
A liquid material discharge apparatus and a method which can easily adjust a movement speed of a plunger. An Example of liquid material discharge apparatus includes a liquid chamber (50) which communicates with a discharging port (11) and to which a liquid material is supplied; a plunger whose rear end portion has a piston (33) and whose front end portion moves forward and rearward inside the liquid chamber (50); an elastic body (47) which applies a biasing force to the plunger; and a pressurizing chamber (49) in which the piston (33) is arranged and to which compressed gas is supplied. The liquid material is discharged through the discharging port (11) by the plunger to move forward fast, the elastic body (47) biases the plunger in a rearward movement direction, and the compressed gas applies a driving force to the piston (33) to cause the plunger to move forward.
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