Title:
止め弁のシール構造
Document Type and Number:
Japanese Patent JP4006218
Kind Code:
B2
Abstract:
A stop valve which is fitted with a cylindrical supporting portion is comprised of a ring-shaped rigid axial portion, a ring-shaped platy bendable valve portion extending outward, and a sealing lip portion extending inward. The sealing lip portion has a first sealing lip which extends obliquely upward from the rigid axial portion and has a semi-circular seal effecting face provided at an edge thereof, and a second sealing lip which extends obliquely downward from the rigid axial portion and has a semi-circular seal effecting face provided at an edge thereof. The first and second sealing lips have an extending portion which connects the edge seal effecting face with the rigid axial portion and has substantially a same thickness as a diameter of the semi-circular shape.
Inventors:
Akihiro Ishitoya
Takashi Fujimaki
Kimura
Kenichi Ito
Takashi Fujimaki
Kimura
Kenichi Ito
Application Number:
JP2001333570A
Publication Date:
November 14, 2007
Filing Date:
October 30, 2001
Export Citation:
Assignee:
Kyosan Electric Co., Ltd.
Rubber Neunaki Co., Ltd.
Rubber Neunaki Co., Ltd.
International Classes:
F16K1/36; F16J15/18; F16K1/38; F16K1/46; F16K24/04; F16K25/00
Domestic Patent References:
| JP50134119U | ||||
| JP2000110959A | ||||
| JP59144279U | ||||
| JP8277943A | ||||
| JP47037980B1 | ||||
| JP51124922U | ||||
| JP54004427U |
Foreign References:
| US6776182 |
Attorney, Agent or Firm:
Yoshio Kimura