Title:
ポンプ密封装置
Document Type and Number:
Japanese Patent JP2007529689
Kind Code:
A
Abstract:
A sealing arrangement for a pump includes a first member having a peripheral wedge-shaped pocket; a second member with a rim opposed to the pocket; and a diaphragm disposed between the two members. The diaphragm includes a central stem, a disk-shaped head attached to the stem, and an upstanding bead disposed around the periphery of the head. The bead includes a first angled surface and a second angled surface. The bead is received in the pocket so as to form two separate, spaced-apart sealing surfaces between the diaphragm and the first member. The sealing arrangement may also include a gasket made from a resilient material and having a flat web with a circular crosssection bead disposed in a gland between two members. The dimensions of the bead and the gland are selected such that the bead is diametrically compressed at least about 40% from its free state.
More Like This:
| WO/2018/025461 | RECIPROCATING PUMP |
Inventors:
Curtis, Douglas, Alan
Application Number:
JP2007504072A
Publication Date:
October 25, 2007
Filing Date:
March 16, 2005
Export Citation:
Assignee:
Hargraves Technology Corporation
Curtis, Douglas, Alan
Curtis, Douglas, Alan
International Classes:
F04B43/02
Domestic Patent References:
| JPH01165363A | 1989-06-29 | |||
| JPS6049218A | 1985-03-18 | |||
| JPS52140005A | 1977-11-22 | |||
| JPS54113951A | 1979-09-05 | |||
| JP2001521601A | 2001-11-06 | |||
| JPS62173565A | 1987-07-30 | |||
| JPS49130266A | 1974-12-13 | |||
| JPH10318151A | 1998-12-02 |
Attorney, Agent or Firm:
Takenori Hiroe
Takanobu Takekawa
High Shinichi Ara
Tsutomu Nishio
Takanobu Takekawa
High Shinichi Ara
Tsutomu Nishio