GB1021782A - Improvements relating to excess voltage protectors - Google Patents

Improvements relating to excess voltage protectors

Info

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
Application number
GB747/64A
Inventor
Raymond Dennis Jones
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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.)
Filing date
Publication date
Application filed by Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB747/64A priority Critical patent/GB1021782A/en
Priority to US423219A priority patent/US3289027A/en
Publication of GB1021782A publication Critical patent/GB1021782A/en
Expired legal-status Critical Current

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.
GB747/64A 1964-01-07 1964-01-07 Improvements relating to excess voltage protectors Expired GB1021782A (en)

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)

* Cited by examiner, † Cited by third party
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
GB1410836A (en) * 1973-03-23 1975-10-22 M O Valve Co Ltd Heat-operated short-circuiting arrangements
GB1411492A (en) * 1973-03-23 1975-10-29 M O Valve Co Ltd Excess voltage arresters
GB1411493A (en) * 1973-03-23 1975-10-29 M O Valve Co Ltd Excess voltage arresters
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
US3289027A (en) 1966-11-29

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