GB1021782A - Improvements relating to excess voltage protectors - Google Patents
Improvements relating to excess voltage protectorsInfo
- Publication number
- GB1021782A GB1021782A GB747/64A GB74764A GB1021782A GB 1021782 A GB1021782 A GB 1021782A GB 747/64 A GB747/64 A GB 747/64A GB 74764 A GB74764 A GB 74764A GB 1021782 A GB1021782 A GB 1021782A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- tube
- excess voltage
- jan
- gas
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/04—Electrodes; Screens
- H01J17/06—Cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
- H01T4/12—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel hermetically sealed
Landscapes
- Lasers (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
1,021,782. Cold cathode tubes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 5, 1965 [Jan. 7, 1964], No. 747/64. Heading H1D. In a gas-filled excess voltage protector, each of the electrodes 10, 11 has a portion b of reduced cross-section extending from a point short of its face c to a point within the alumina ceramic spacer 4, to which is secured, by brazing to metallized surface portions, to the end cap 1 and the metal sleeve 3 which constitutes an earth electrode. The electrodes are centrally located by polygonal shoulders d, which permit the evacuation and gas-filling of the tube through a passage 12 in electrode 10, and the exhaust 'tube 13. The electrodes may be tubular, and may have spherical end faces which, together with tube 3, can be coated with thermionic activating material.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB747/64A GB1021782A (en) | 1964-01-07 | 1964-01-07 | Improvements relating to excess voltage protectors |
US423219A US3289027A (en) | 1964-01-07 | 1965-01-04 | Gas filled excess voltage protector having electrodes of non-uniform diameter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB747/64A GB1021782A (en) | 1964-01-07 | 1964-01-07 | Improvements relating to excess voltage protectors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1021782A true GB1021782A (en) | 1966-03-09 |
Family
ID=9709825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB747/64A Expired GB1021782A (en) | 1964-01-07 | 1964-01-07 | Improvements relating to excess voltage protectors |
Country Status (2)
Country | Link |
---|---|
US (1) | US3289027A (en) |
GB (1) | GB1021782A (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3333153A (en) * | 1964-08-31 | 1967-07-25 | Alfred J Roach | Over-voltage protection techniques |
US3546538A (en) * | 1967-04-12 | 1970-12-08 | Erie Technological Prod Inc | Spark gap |
US3522570A (en) * | 1968-04-08 | 1970-08-04 | Ajr Electronics Corp | Fail-safe over-voltage protector |
US3775642A (en) * | 1971-01-25 | 1973-11-27 | Siemens Ag | Gas discharge excess voltage arrester |
GB1411493A (en) * | 1973-03-23 | 1975-10-29 | M O Valve Co Ltd | Excess voltage arresters |
GB1411492A (en) * | 1973-03-23 | 1975-10-29 | M O Valve Co Ltd | Excess voltage arresters |
GB1410836A (en) * | 1973-03-23 | 1975-10-22 | M O Valve Co Ltd | Heat-operated short-circuiting arrangements |
GB1389142A (en) * | 1973-05-31 | 1975-04-03 | Comtelco Uk Ltd | Electrical surge arrestor |
US3858077A (en) * | 1973-11-20 | 1974-12-31 | Gen Instrument Corp | Gas tube transient voltage protector for telecommunication systems |
US4063127A (en) * | 1976-06-21 | 1977-12-13 | International Standard Electric Corporation | Overload protection tube |
US4156886A (en) * | 1977-04-19 | 1979-05-29 | Tii Corporation | Gas tube surge arrester |
US4277812A (en) * | 1979-06-11 | 1981-07-07 | Tii Industries, Inc. | Excess voltage arrester |
US4495539A (en) * | 1980-09-19 | 1985-01-22 | The M-O Valve Company Limited | Excess voltage arresters |
JPH0379661U (en) * | 1989-12-05 | 1991-08-14 | ||
US5633777A (en) * | 1994-10-13 | 1997-05-27 | Siemens Aktiengesellschaft | Gas-filled, three-electrode overvoltage surge arrester for large switching capacities |
US6384374B1 (en) * | 2000-08-25 | 2002-05-07 | Illinois Tool Works Inc. | Spark gap assembly for a welding power supply |
US6866429B2 (en) * | 2001-09-26 | 2005-03-15 | Np Photonics, Inc. | Method of angle fusion splicing silica fiber with low-temperature non-silica fiber |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1144029A (en) * | 1913-03-19 | 1915-06-22 | Gen Electric | Protective device. |
US1758181A (en) * | 1928-05-10 | 1930-05-13 | Line Material Co | Lightning arrester |
US2642549A (en) * | 1952-04-11 | 1953-06-16 | Mcgraw Electric Co | Housed spark-over gap |
-
1964
- 1964-01-07 GB GB747/64A patent/GB1021782A/en not_active Expired
-
1965
- 1965-01-04 US US423219A patent/US3289027A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3289027A (en) | 1966-11-29 |
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