NL249491A - - Google Patents
Info
- Publication number
- NL249491A NL249491A NL249491DA NL249491A NL 249491 A NL249491 A NL 249491A NL 249491D A NL249491D A NL 249491DA NL 249491 A NL249491 A NL 249491A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/55—Oil reservoirs or tanks; Lowering means therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/404—Protective devices specially adapted for fluid filled transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US802143A US2961508A (en) | 1959-03-26 | 1959-03-26 | Pressure relay for fluid containing enclosures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL249491A true NL249491A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=25182949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL249491D NL249491A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1959-03-26 |
Country Status (7)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3091085A (en) * | 1960-11-29 | 1963-05-28 | James W Honodel | Hydraulically actuated controller |
| US4238652A (en) * | 1978-10-30 | 1980-12-09 | Indian Head, Inc. | Switch system for indicating changes in liquid level |
| DE3542603C2 (de) * | 1985-12-03 | 1994-11-17 | Teves Gmbh Alfred | Elektrohydraulische Schaltvorrichtung |
| US12000274B2 (en) * | 2020-12-28 | 2024-06-04 | Halliburton Energy Services, Inc. | Wireless telemetry using a pressure switch and mechanical thresholding of the signal |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2411577A (en) * | 1943-12-03 | 1946-11-26 | Stewart Warner Corp | Pressure responsive microswitch |
| US2421284A (en) * | 1944-06-24 | 1947-05-27 | Vapor Car Heating Co Inc | Pressure actuated switch |
| US2716395A (en) * | 1951-08-22 | 1955-08-30 | Hartford Special Machinery Co | Fluid operated power apparatus and control mechanisms therefor |
| US2758480A (en) * | 1953-03-02 | 1956-08-14 | Square D Co | Switch operating mechanism |
| CA550139A (en) * | 1954-11-23 | 1957-12-10 | E. Sauer Louis | Pressure responsive relays |
| US2852642A (en) * | 1957-01-07 | 1958-09-16 | Ford Motor Co | Thermal responsive device |
-
0
- NL NL249491D patent/NL249491A/xx unknown
-
1959
- 1959-03-26 US US802143A patent/US2961508A/en not_active Expired - Lifetime
-
1960
- 1960-02-23 JP JP530560A patent/JPS3618873B1/ja active Pending
- 1960-03-24 GB GB10459/60A patent/GB884066A/en not_active Expired
- 1960-03-25 FR FR822455A patent/FR1251933A/fr not_active Expired
- 1960-03-25 CH CH342460A patent/CH383468A/de unknown
- 1960-03-26 DE DEG29323A patent/DE1147653B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US2961508A (en) | 1960-11-22 |
| JPS3618873B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1961-10-10 |
| FR1251933A (fr) | 1961-01-20 |
| DE1147653B (de) | 1963-04-25 |
| CH383468A (de) | 1964-10-31 |
| GB884066A (en) | 1961-12-06 |