GB848340A - Electric circuit including an improved electric-discharge tube - Google Patents

Electric circuit including an improved electric-discharge tube

Info

Publication number
GB848340A
GB848340A GB12930/57A GB1293057A GB848340A GB 848340 A GB848340 A GB 848340A GB 12930/57 A GB12930/57 A GB 12930/57A GB 1293057 A GB1293057 A GB 1293057A GB 848340 A GB848340 A GB 848340A
Authority
GB
United Kingdom
Prior art keywords
vanes
cathode
discharge tube
electric
tube
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
GB12930/57A
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.)
PerkinElmer Inc
Original Assignee
Edgerton Germeshausen and Grier Inc
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 Edgerton Germeshausen and Grier Inc filed Critical Edgerton Germeshausen and Grier Inc
Publication of GB848340A publication Critical patent/GB848340A/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
    • H01J17/066—Cold cathodes

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
  • Lasers (AREA)

Abstract

848,340. Thermionic-cathode tubes. EDGERTON, GERMESHAUSEN & GRIER Inc. April 23, 1957 [April 25, 1956], No. 12930/67. Class 39(1). A discharge tube cathode comprises a number of thin electron-emitting vanes extending towards the anode, and having a length L in this direction given by P being the cathode perimeter, and the other quantities various circuit parameters as defined in the Specification ; the tube is used in a suitable circuit such that the conditions represented by this equation obtain. The tube described, Fig. 1 (not shown), is of the hydrogen thyratron type. The cathode consists of a number of vanes such as 13, 15, 17, coated with emissive material, and contained within a cup 9 which has an inward-curving rim, as at 50. The vanes may be extremely thin, e.g. 0À02 inch, and spaced about 1-2 mm. apart. The vanes are attached to a base member 11 heated by a continuous coil 19. Fig. 3 shows a modification in which the vanes are in the form of coaxial cylinders, and they may also be of honey-comb form, Fig. 4 (not shown). U.S.A. Specification 2,592,556 is referred to.
GB12930/57A 1956-04-25 1957-04-23 Electric circuit including an improved electric-discharge tube Expired GB848340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US580551A US2937301A (en) 1956-04-25 1956-04-25 Electric-discharge device and cathode

Publications (1)

Publication Number Publication Date
GB848340A true GB848340A (en) 1960-09-14

Family

ID=24321554

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12930/57A Expired GB848340A (en) 1956-04-25 1957-04-23 Electric circuit including an improved electric-discharge tube

Country Status (3)

Country Link
US (1) US2937301A (en)
FR (1) FR1172488A (en)
GB (1) GB848340A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091717A (en) * 1957-07-24 1963-05-28 Varian Associates Cathodes for magnetically-confined glow discharge devices
NL268755A (en) * 1960-10-11
NL287849A (en) * 1960-10-14
NL271024A (en) * 1960-11-04
US3320463A (en) * 1962-07-23 1967-05-16 Gen Electric Electron discharge tube having an improved electrode mounting structure
US3439210A (en) * 1966-01-03 1969-04-15 Hughes Aircraft Co Thermionic emission cathode having reduced frontal area and enlarged emission area for ion bombardment environment
GB2194673B (en) * 1986-08-30 1990-10-24 English Electric Valve Co Ltd Apparatus for forming an electron beam sheet
US6734253B2 (en) * 2002-07-19 2004-05-11 Dow Global Technologies, Inc. Scratch and mar resistant propylene polymer composition

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1968839A (en) * 1928-02-24 1934-08-07 Gen Electric Vapor Lamp Co Low voltage discharge tube
US2249672A (en) * 1936-12-10 1941-07-15 Gen Electric Discharge device
US2252694A (en) * 1939-06-17 1941-08-19 Electronic Res Corp Electric discharge electrode
US2572881A (en) * 1946-04-22 1951-10-30 Rothstein Jerome Thyratron cathode design to prevent cleanup of hydrogen
US2440370A (en) * 1947-01-23 1948-04-27 Air Maze Corp Multipointed electrode
US2599352A (en) * 1947-03-08 1952-06-03 Texaco Development Corp Radiation detector
US2512538A (en) * 1949-07-26 1950-06-20 Atomic Energy Commission Electric discharge device
US2650997A (en) * 1950-12-29 1953-09-01 Chatham Electronics Corp Heat shielded cathode

Also Published As

Publication number Publication date
FR1172488A (en) 1959-02-11
US2937301A (en) 1960-05-17

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