IT968448B - LIQUID DIELECTRIC SWITCH UNDER PRESSURE - Google Patents

LIQUID DIELECTRIC SWITCH UNDER PRESSURE

Info

Publication number: IT968448B
Authority: IT; Italy
Prior art keywords: under pressure; switch under; liquid dielectric; dielectric switch; liquid
Prior art date: 1971-09-30

Application number

IT29879/72A

Other languages

Italian (it)

Original Assignee

Gratzmuller J

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.)

1971-09-30

Filing date

1972-09-29

Publication date

1974-03-20

1972-09-29 Application filed by Gratzmuller J filed Critical Gratzmuller J

1974-03-20 Application granted granted Critical

1974-03-20 Publication of IT968448B publication Critical patent/IT968448B/en

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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- 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
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
- H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being air or gas
- H01H2033/912—Liquified gases, e.g. liquified SF6

IT29879/72A 1971-09-30 1972-09-29 LIQUID DIELECTRIC SWITCH UNDER PRESSURE IT968448B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR7135197A FR2154928A5 (en)	1971-09-30	1971-09-30

Publications (1)

Publication Number	Publication Date
IT968448B true IT968448B (en)	1974-03-20

Family

ID=9083717

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT29879/72A IT968448B (en)	1971-09-30	1972-09-29	LIQUID DIELECTRIC SWITCH UNDER PRESSURE

Country Status (18)

Country	Link
US (1)	US3842227A (en)
JP (1)	JPS5213626B2 (en)
AT (1)	AT325136B (en)
AU (1)	AU470230B2 (en)
BE (1)	BE788520A (en)
CA (1)	CA959525A (en)
CH (1)	CH567330A5 (en)
CS (1)	CS182773B2 (en)
ES (1)	ES406253A1 (en)
FR (1)	FR2154928A5 (en)
GB (1)	GB1404652A (en)
HU (1)	HU173196B (en)
IT (1)	IT968448B (en)
NL (1)	NL152699B (en)
NO (1)	NO134025C (en)
SE (1)	SE371328B (en)
SU (1)	SU735196A3 (en)
ZA (1)	ZA726059B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2272477B1 (en) *	1974-05-22	1978-06-16	Gratzmuller J
CA1047585A (en) *	1974-08-27	1979-01-30	Jean L. Gratzmuller	Protracted-blast electric circuit-breaker for alternating currents
US4273978A (en) *	1978-06-09	1981-06-16	Electric Power Research Institute, Inc.	Liquid interrupter module
NO321080B1 (en)	2004-11-04	2006-03-13	Bennex As	Switch for high voltage and / or current
NO325743B1 (en)	2006-07-05	2008-07-14	Vetco Gray Scandinavia As	Underwater switching device
NO325440B1 (en)	2006-07-05	2008-05-05	Vetco Gray Scandinavia As	Submarine facility
WO2015097143A1 (en) *	2013-12-23	2015-07-02	Abb Technology Ag	Electrical switching device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1143890B (en) *	1958-12-02	1963-02-21	Licentia Gmbh	Oarm circuit breaker
FR1412478A (en) *	1964-08-01	1965-10-01	Merlin Gerin	Arc extinguishing device comprising a closed enclosure filled with compressed gas
DE1640124A1 (en) *	1965-01-21	1971-10-14	Gratzmuller Jean Louis	Electric switch
FR1430333A (en) *	1965-01-21	1966-03-04		Improvements made to circuit breakers
US3406269A (en) *	1965-02-26	1968-10-15	Westinghouse Electric Corp	Fluid-blast circuit breakers having means for increasing the density of the fluid during interruption
FR1537673A (en) *	1966-04-15	1968-09-07		Improvements made to circuit breakers
CH456725A (en) *	1967-03-17	1968-07-31	Oerlikon Maschf	Low-liquid circuit breaker
FR1539783A (en) *	1967-07-19	1968-09-20		Switching device of an electrical circuit
FR2076812A5 (en) *	1970-01-29	1971-10-15	Gratzmuller J

1971
- 1971-09-30 FR FR7135197A patent/FR2154928A5/fr not_active Expired
1972
- 1972-08-31 ES ES406253A patent/ES406253A1/en not_active Expired
- 1972-09-01 GB GB4060772A patent/GB1404652A/en not_active Expired
- 1972-09-05 ZA ZA726059A patent/ZA726059B/en unknown
- 1972-09-06 AU AU46356/72A patent/AU470230B2/en not_active Expired
- 1972-09-07 BE BE788520D patent/BE788520A/en not_active IP Right Cessation
- 1972-09-07 CA CA151,206A patent/CA959525A/en not_active Expired
- 1972-09-08 NL NL727212217A patent/NL152699B/en not_active IP Right Cessation
- 1972-09-08 CH CH1320572A patent/CH567330A5/xx not_active IP Right Cessation
- 1972-09-13 JP JP47091342A patent/JPS5213626B2/ja not_active Expired
- 1972-09-14 NO NO3281/72A patent/NO134025C/no unknown
- 1972-09-19 AT AT803172A patent/AT325136B/en not_active IP Right Cessation
- 1972-09-22 SE SE7212244A patent/SE371328B/xx unknown
- 1972-09-27 CS CS7200006562A patent/CS182773B2/en unknown
- 1972-09-29 SU SU721834308A patent/SU735196A3/en active
- 1972-09-29 HU HU72GA1116A patent/HU173196B/en unknown
- 1972-09-29 IT IT29879/72A patent/IT968448B/en active
- 1972-10-02 US US00294291A patent/US3842227A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
DE2245170B2 (en)	1976-03-25
SE371328B (en)	1974-11-11
NL152699B (en)	1977-03-15
JPS4842365A (en)	1973-06-20
BE788520A (en)	1973-03-07
CH567330A5 (en)	1975-09-30
NO134025C (en)	1976-08-04
US3842227A (en)	1974-10-15
AU4635672A (en)	1974-03-21
CA959525A (en)	1974-12-17
JPS5213626B2 (en)	1977-04-15
NO134025B (en)	1976-04-26
CS182773B2 (en)	1978-05-31
ZA726059B (en)	1973-05-30
ES406253A1 (en)	1975-07-01
AU470230B2 (en)	1976-03-11
AT325136B (en)	1975-10-10
FR2154928A5 (en)	1973-05-18
SU735196A3 (en)	1980-05-15
GB1404652A (en)	1975-09-03
DE2245170A1 (en)	1973-04-05
NL7212217A (en)	1973-04-03
HU173196B (en)	1979-03-28

Publication	Publication Date	Title
IT964956B (en)	1974-01-31	PRECOM PRESSURE LIQUID VAPORIZER
BR7301050D0 (en)	1973-12-18	LIQUID BURRIFYER
SE392239B (en)	1977-03-21	PRESSURE DEVICE DEVICE
SE381773B (en)	1975-12-15	INSERTITY SWITCH DEVICE
AR196499A1 (en)	1974-02-06	IMPROVEMENTS IN A PRESSURE FLUID DISPENSER
IT958841B (en)	1973-10-30	PRESSURE SWITCH
SE390941B (en)	1977-01-31	UNDER PRESSURE DISCHARGE CONTAINER
SE394265B (en)	1977-06-20	PRESSURE DEVICE
IT1048157B (en)	1980-11-20	LIQUID SHAMPOO
AR196637A1 (en)	1974-02-12	IMPROVEMENTS IN A PRESSURE FLUID DISPENSER
IT968448B (en)	1974-03-20	LIQUID DIELECTRIC SWITCH UNDER PRESSURE
CH534435A (en)	1973-02-28	Switching device
IT951151B (en)	1973-06-30	PRESSURE CONTACTOR
BR7203498D0 (en)	1973-06-07	PRESSURE CONTAINER
SE402828B (en)	1978-07-17	PRESSURE DEVICE
IT1045234B (en)	1980-05-10	PRESSURE SWITCH
BR7402896D0 (en)	1975-01-07	DIFFERENTIAL PRESSURE SWITCH
BR7404890A (en)	1976-02-17	PRESSURE SWITCH
IT950673B (en)	1973-06-20	THYRISTORIZED POLYPHASE CORRUGATOR WITH FORCED SWITCHING
IT959075B (en)	1973-11-10	SNAP SWITCH
AT315948B (en)	1974-06-25	Switching device
SE408438B (en)	1979-06-11	UNDER PRESSURE MASSASIL
NL168362C (en)	1982-03-16	PRESSURE SENSITIVE SWITCHING DEVICE.
BE788438A (en)	1973-01-02	LIQUID DISPENSER
CH541865A (en)	1973-09-15	Gas pressure switch