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Patent Searching and Data


Title:
SYRINGE TYPE PISTON
Document Type and Number:
Japanese Patent JP2009191633
Kind Code:
A
Abstract:

To provide a syringe type piston capable of accurately discharging liquid without requiring labor for filling the liquid.

This syringe type piston is provided for reciprocating a piston in a cylindrical syringe for forming a liquid holding space inside, and has a hollow part formed in the piston, a communicating part for connecting the hollow part to the liquid holding space, a liquid supply port connectable with a liquid supply pipe for supplying the liquid to the hollow part, a control valve for controlling the opening/closing of this liquid supply port, and an elastic sealant installed on the tip of the liquid holding space side of the piston and holding airtightness with a syringe inner wall.


Inventors:
Fueki, Manabu
Kurita, Kazunobu
Application Number:
JP2008000030382
Publication Date:
August 27, 2009
Filing Date:
February 12, 2008
Export Citation:
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Assignee:
YOKOGAWA ELECTRIC CORP
International Classes:
F04B13/00
Domestic Patent References:
JPH09126119A
JP2000329771A