FR2264381A1 - Temp. or pressure actuated electric switch - has capsule for sensing pressure in temperature bulb or in container - Google Patents
Temp. or pressure actuated electric switch - has capsule for sensing pressure in temperature bulb or in containerInfo
- Publication number
- FR2264381A1 FR2264381A1 FR7507496A FR7507496A FR2264381A1 FR 2264381 A1 FR2264381 A1 FR 2264381A1 FR 7507496 A FR7507496 A FR 7507496A FR 7507496 A FR7507496 A FR 7507496A FR 2264381 A1 FR2264381 A1 FR 2264381A1
- Authority
- FR
- France
- Prior art keywords
- capsule
- pressure
- temperature
- temp
- container
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
- H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure
- H01H35/2635—Means for adjustment of "ON" or "OFF" operating pressure by adjustment of a motion transmitting system
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Thermally Actuated Switches (AREA)
- Measuring Fluid Pressure (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Control Of Temperature (AREA)
Abstract
An expanding capsule actuates the switch contact. The capsule has a pair of flexible discs joined at their perimeter. The switch has two separable cases, one made of plastic material and containing the contacts and the other contains the capsule and part of the actuating mechanism. The actuating mechanism has an actuating lever with one end fixed to an adjustable screw, an actuating rod and a spring strip. A bulb containing methyl alcohol is used to sense temperature. The vapour pressure of the methyl alcohol varies with temperature and any increase with temperature will expand the capsule.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1108474A GB1492592A (en) | 1974-03-13 | 1974-03-13 | Electrical switches |
GB1225174 | 1974-03-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2264381A1 true FR2264381A1 (en) | 1975-10-10 |
FR2264381B3 FR2264381B3 (en) | 1977-04-15 |
Family
ID=26248032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7507496A Granted FR2264381A1 (en) | 1974-03-13 | 1975-03-11 | Temp. or pressure actuated electric switch - has capsule for sensing pressure in temperature bulb or in container |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE7507607U (en) |
DK (1) | DK99575A (en) |
FR (1) | FR2264381A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3800654A1 (en) * | 2019-10-03 | 2021-04-07 | Saginomiya Seisakusho, Inc. | Pressure switch |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5061832A (en) * | 1991-01-28 | 1991-10-29 | Dwyer Instruments, Inc. | Field settable differential pressure switch assembly for low fluid pressure applications |
-
1975
- 1975-03-11 DE DE19757507607 patent/DE7507607U/en not_active Expired
- 1975-03-11 FR FR7507496A patent/FR2264381A1/en active Granted
- 1975-03-12 DK DK99575A patent/DK99575A/da unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3800654A1 (en) * | 2019-10-03 | 2021-04-07 | Saginomiya Seisakusho, Inc. | Pressure switch |
Also Published As
Publication number | Publication date |
---|---|
DE7507607U (en) | 1975-07-24 |
FR2264381B3 (en) | 1977-04-15 |
DK99575A (en) | 1975-11-03 |
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