NL249491A - - Google Patents

Info

Publication number: NL249491A
Authority: NL; Netherlands

Application number

Priority date (The priority date 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 date listed.)

1959-03-26

Publication of NL249491A publication Critical patent/NL249491A/xx

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
- 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)

NL249491D 1959-03-26 NL249491A (mo)

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 (mo)

Family

ID=25182949

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL249491D NL249491A (mo)	1959-03-26

Country Status (7)

Country	Link
US (1)	US2961508A (mo)
JP (1)	JPS3618873B1 (mo)
CH (1)	CH383468A (mo)
DE (1)	DE1147653B (mo)
FR (1)	FR1251933A (mo)
GB (1)	GB884066A (mo)
NL (1)	NL249491A (mo)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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 CH CH342460A patent/CH383468A/de unknown
- 1960-03-25 FR FR822455A patent/FR1251933A/fr not_active Expired
- 1960-03-26 DE DEG29323A patent/DE1147653B/de active Pending

Also Published As

Publication number	Publication date
US2961508A (en)	1960-11-22
FR1251933A (fr)	1961-01-20
GB884066A (en)	1961-12-06
CH383468A (de)	1964-10-31
DE1147653B (de)	1963-04-25
JPS3618873B1 (mo)	1961-10-10

Publication	Publication Date	Title
DE1130535C2 (mo)	1962-12-06
AT221460B (mo)	1962-05-25
AT227430B (mo)	1963-05-27
JPS3618873B1 (mo)	1961-10-10
FI40090B (mo)	1968-06-28
FR394M (mo)	1961-04-10
AT213496B (mo)	1961-02-27
FR813M (mo)	1961-09-18
AT216640B (mo)	1961-08-10
BE580250A (mo)
NL108922C (mo)
BE586603A (mo)
BE586076A (mo)
BE583329A (mo)
BE581958A (mo)
BE584735A (mo)
NL241195A (mo)
BE584331A (mo)
BE450855A (mo)
BE584608A (mo)
BE575793A (mo)
BE586258A (mo)
BE576754A (mo)
LU38612A1 (mo)
BE586537A (mo)