Title:
JOINT DEVICE
Document Type and Number:
Japanese Patent JP3938428
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce the stay of the liquid during the time when a joint is separated in a circulating circuit switching device.
SOLUTION: In this joint device, a circulating circuit for circulating the liquid of a tank with a pump is provided with a cutoff valve 17 arranged freely to be cut off, and the joint device is used at the time of closing the cutoff valve and connecting other circuit to the circulating circuit at a pump side. In this joint device having a feedign side joint 16 to be connected to a pipeline of the circulating circuit and a receiver side joint 20 provided in other circuit and to be connected through an opening and closing part of a feeding side joint, the opening and closing part is formed at a position of the inner peripheral surface of a part formed with the circulating passage of the feeding side joint. The opening and closing part is provided with a connection port 29 to be connected to other circuit and a valve element 30 for opening and closing the connection port 29. The device is also provided with a driving device 32 for opening the valve element in response to the connection of other circuit.
Inventors:
Kazumi Shima
Hisashi Kawada
Haruki Fukui
Masanori Okada
Hisashi Kawada
Haruki Fukui
Masanori Okada
Application Number:
JP5880598A
Publication Date:
June 27, 2007
Filing Date:
February 23, 1998
Export Citation:
Assignee:
Toyo Engineering Corporation
Nabtesco Co., Ltd.
Nabtesco Co., Ltd.
International Classes:
F16L25/00; F16L39/00; F16L37/40; (IPC1-7): F16L37/40; F16L25/00
Domestic Patent References:
| JP49049138B1 |
Attorney, Agent or Firm:
Hiroshi Tanaka