Title:
管継手
Document Type and Number:
Japanese Patent JP3983713
Kind Code:
B2
Abstract:
A female coupling member of a pipe coupling is provided which has a fluid passage and a valve therein. The fluid passage is separated by the valve into a first-end side adapted to be connected to a conduit and a second-end side adapted to be connected to a male coupling member. The valve is moveable between an open position for permitting a fluid to flow between the first-end side and the second-end side, and a closed position for blocking the flow of fluid. The valve is provided with a purge flow path that allows the second end side of the fluid passage to communicate with the outside when the valve is in the closed position, and that blocks the communication between the fluid passage and the outside when the valve is in the open position. Thus, the present invention simplifies the purge mechanism of the female coupling member which releases the fluid pressure remaining within the fluid passage when the valve is in the closed position.
Inventors:
Mikiya Toshio
Takuya Nishio
Koji Matsumoto
Takuya Nishio
Koji Matsumoto
Application Number:
JP2003133618A
Publication Date:
September 26, 2007
Filing Date:
May 12, 2003
Export Citation:
Assignee:
Nitto Kohki Co., Ltd.
International Classes:
F16L37/38; F16L37/23; F16L37/373; F16L37/47
Domestic Patent References:
| JP8082395A | ||||
| JP7020426U |
Attorney, Agent or Firm:
Shigeru Ito
Akihiro Otsuka
Yasushi Kobayashi
Takeshi Kojima
Akihiro Otsuka
Yasushi Kobayashi
Takeshi Kojima