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Title:
LIQUID JETTING DEVICE
Document Type and Number:
Japanese Patent JP2012158360
Kind Code:
A
Abstract:

To prevent a cylindrical piston of a liquid jetting device and an engaging ring supporting the cylindrical piston from under the same from generating blocking.

The liquid jetting device has the cylindrical piston 16 of a soft material sliding in a pump cylinder 2, a base cylinder 32 is erected from the inner fringe part of the engaging ring 26 capable of engaging with the lower surface of the cylindrical piston, a stem 36 is erected from the outside of the base cylinder, and an operation member 14 to which a push down head 38 is attached is arranged in the upper end of the stem. A valve seat 30 is circumferentially disposed in the upper surface of the engaging ring 26, the first seal part 18a contacting the inner periphery of the valve seat is formed in the lower part of the inner peripheral part 18 of the cylindrical piston, the second seal part 20a contacting the inner surface of the pump cylinder 2 is formed in the lower part of the outer peripheral part 20 of the cylindrical piston. The lower end surface of the second seal part 20a is positioned at the height not less than the height of the lower end surface of the first seal part 18a in the state before the cylindrical piston 16 contacts liquid.


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JPH08198301SPRAY CONTAINER
Inventors:
ABE TAKAYUKI
Application Number:
JP2011000018970
Publication Date:
August 23, 2012
Filing Date:
January 31, 2011
Export Citation:
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Assignee:
YOSHINO KOGYOSHO CO LTD
International Classes:
B65D47/34; B65D83/76; F04B9/14; B05B11/00
Domestic Patent References:
JPH11333338A1999-12-07
JPH0524569U1993-03-30
JP2004230316A2004-08-19
JP2009078255A2009-04-16
JPS57135062A1982-08-20
JP2009154900A2009-07-16
Attorney, Agent or Firm:
今岡 憲



 
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