Title:
水圧式ラムポンプ
Document Type and Number:
Japanese Patent JP2007519849
Kind Code:
A
Abstract:
A piston type pumping apparatus comprises a vertically oriented cylinder having a top and a bottom with a first aperture. There are first and second passageways for liquid in the cylinder at the top and bottom respectively thereof. A piston is reciprocatingly mounted within the cylinder and has an area against which pressurized fluid acts in the direction of movement of the piston. A hollow piston rod is connected to the piston and extends below the piston and slidably through the first aperture. There is a reload chamber below the cylinder. The piston rod extends slidably into the reload chamber and has a third passageway for liquid communicating thereto. A first one-way valve is located in the third passageway. There is also a fourth passageway that extends from the reload chamber to a source of liquid to be pumped and a second one-way valve therein.
More Like This:
| JPH10306769 | RECIPROCATING PUMP |
| WO/1985/002225 | APPARATUS FOR AND A METHOD OF TRANSFERRING LIQUID |
| JP2005307767 | CHECK VALVE OF POSITIVE DISPLACEMENT TYPE PUMP |
Inventors:
McNichol, Richard Frederick
Bryce, Gordon
Bryce, Gordon
Application Number:
JP2006549817A
Publication Date:
July 19, 2007
Filing Date:
January 27, 2005
Export Citation:
Assignee:
McNichol, Richard Frederick
International Classes:
F04B9/107; F04B9/08; F04B9/115; F04B47/08; F04B47/10; F04F7/02
Foreign References:
| US6193476B1 | 2001-02-27 | |||
| US4421463A | 1983-12-20 | |||
| US3135210A | 1964-06-02 |
Attorney, Agent or Firm:
Takenori Hiroe
Takanobu Takekawa
High Shinichi Ara
Tsutomu Nishio
Takanobu Takekawa
High Shinichi Ara
Tsutomu Nishio