JPS55103171A - Gas stopper - Google Patents
Gas stopperInfo
- Publication number
- JPS55103171A JPS55103171A JP1101579A JP1101579A JPS55103171A JP S55103171 A JPS55103171 A JP S55103171A JP 1101579 A JP1101579 A JP 1101579A JP 1101579 A JP1101579 A JP 1101579A JP S55103171 A JPS55103171 A JP S55103171A
- Authority
- JP
- Japan
- Prior art keywords
- board
- magnetic
- case
- gas passage
- magnetic valve
- 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
- Safety Valves (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
PURPOSE: To block momentarily a gas passage in case of earthquake by virtue of a change in the direction of magnetic field, by setting a vertically and horizontally movable magnetic board above a magnetic valve for controlling the gas passage in a hermetic case.
CONSTITUTION: Concave portions 2, 3, communicated with each other, are made on the gas inlet and outlet sides of a hermetic case 1 in which a gas passage is formed. A magnetic valve a, set in the concave 2, is composed of a vertically movable bottom board 5 and upper board 6 having a projection board 8 at the center on its upper side, a magnet 7 being buried in the projection board 8. Another case 10, put on the case 1, has a magnetic board b suspended inside, having a magnet 12 at the lower end of a weight 11 and a shaft rod 13 at the upper end being held by a spring 15 at a hole 14 of the case 10. The magnetic force of both magnets 7, 12 is so designed that the magnetic valve a drops because of a change in the direction of magnetic field caused by oscillation of the magnetic board b, when both magnets 7, 12 are aligned on the same vertical line.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1101579A JPS55103171A (en) | 1979-02-01 | 1979-02-01 | Gas stopper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1101579A JPS55103171A (en) | 1979-02-01 | 1979-02-01 | Gas stopper |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55103171A true JPS55103171A (en) | 1980-08-07 |
Family
ID=11766280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1101579A Pending JPS55103171A (en) | 1979-02-01 | 1979-02-01 | Gas stopper |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55103171A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4382449A (en) * | 1981-06-29 | 1983-05-10 | Nelson Wesley C | Magnetically resettable emergency shut-off valve |
-
1979
- 1979-02-01 JP JP1101579A patent/JPS55103171A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4382449A (en) * | 1981-06-29 | 1983-05-10 | Nelson Wesley C | Magnetically resettable emergency shut-off valve |
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