JPS5790478A - Safety cut-off actuator - Google Patents
Safety cut-off actuatorInfo
- Publication number
- JPS5790478A JPS5790478A JP16500480A JP16500480A JPS5790478A JP S5790478 A JPS5790478 A JP S5790478A JP 16500480 A JP16500480 A JP 16500480A JP 16500480 A JP16500480 A JP 16500480A JP S5790478 A JPS5790478 A JP S5790478A
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- sensor
- fluid
- supplied
- load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Fluid-Driven Valves (AREA)
Abstract
PURPOSE: To enable a load to return back surely to the original position by releasing the pressure generated through a forcibly-flowing apparatus in a chamber by means of a valve device opened in response to the cut-off signal applied from outside.
CONSTITUTION: If an earthquake sensor 28 senses an earthquake or a gas sensor 29 senses gas leak when fluid is flowed forcibly toward a second chamber 8 by means of a plunger 4 and an output is supplied from the sensor to a control circuit 23 through an OR circuit 30, the control circuit 23 immediately cuts off the control signal being supplied to a coil 24. Accordingly a valve member 27 is moved to its open position and the fluid within the second chamber 8 goes back to the first chamber 7 through a connection route 10, resulting in rapid down of the pressure in the second chamber 8. Thus the load can be reduced again surely to the original position.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16500480A JPS5790478A (en) | 1980-11-21 | 1980-11-21 | Safety cut-off actuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16500480A JPS5790478A (en) | 1980-11-21 | 1980-11-21 | Safety cut-off actuator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5790478A true JPS5790478A (en) | 1982-06-05 |
Family
ID=15804009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16500480A Pending JPS5790478A (en) | 1980-11-21 | 1980-11-21 | Safety cut-off actuator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5790478A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57144371A (en) * | 1981-02-28 | 1982-09-06 | Yamatake Honeywell Co Ltd | Safety stop actuator |
-
1980
- 1980-11-21 JP JP16500480A patent/JPS5790478A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57144371A (en) * | 1981-02-28 | 1982-09-06 | Yamatake Honeywell Co Ltd | Safety stop actuator |
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