DE3666522D1 - Precision coining method and coined helix assembly - Google Patents

Precision coining method and coined helix assembly

Info

Publication number
DE3666522D1
DE3666522D1 DE8686906073T DE3666522T DE3666522D1 DE 3666522 D1 DE3666522 D1 DE 3666522D1 DE 8686906073 T DE8686906073 T DE 8686906073T DE 3666522 T DE3666522 T DE 3666522T DE 3666522 D1 DE3666522 D1 DE 3666522D1
Authority
DE
Germany
Prior art keywords
coined
helix assembly
coining method
precision
precision coining
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
DE8686906073T
Other languages
German (de)
Inventor
George Lee
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.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Application granted granted Critical
Publication of DE3666522D1 publication Critical patent/DE3666522D1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
    • H01J23/24—Slow-wave structures, e.g. delay systems
    • H01J23/26—Helical slow-wave structures; Adjustment therefor
DE8686906073T 1985-10-21 1986-09-15 Precision coining method and coined helix assembly Expired DE3666522D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78988285A 1985-10-21 1985-10-21
PCT/US1986/001889 WO1987002507A1 (en) 1985-10-21 1986-09-15 Precision coining method and coined helix assembly

Publications (1)

Publication Number Publication Date
DE3666522D1 true DE3666522D1 (en) 1989-11-23

Family

ID=25148964

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686906073T Expired DE3666522D1 (en) 1985-10-21 1986-09-15 Precision coining method and coined helix assembly

Country Status (4)

Country Link
EP (1) EP0243399B1 (en)
JP (1) JPS63501182A (en)
DE (1) DE3666522D1 (en)
WO (1) WO1987002507A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4712293A (en) * 1986-11-28 1987-12-15 Hughes Aircraft Company Method for securing a slow-wave structure in enveloping structure with crimped spacers
CN102501032B (en) * 2011-12-02 2014-01-08 安徽华东光电技术研究所 Manufacturing process of positioning elastic sheet of traveling wave tube electron gun system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271615A (en) * 1961-08-23 1966-09-06 Westinghouse Electric Corp Traveling wave electron discharge device having means exerting a radial force upon the envelope
US3132410A (en) * 1962-03-08 1964-05-12 Cohen Aaron Methods of constructing a traveling wave tube
US3208126A (en) * 1962-05-14 1965-09-28 Sperry Rand Corp Method for making traveling wave tubes
GB984607A (en) * 1962-07-19 1965-02-24 Ferranti Ltd Improvements relating to travelling-wave tubes
US3808677A (en) * 1972-10-10 1974-05-07 Varian Associates Method of fabricating a traveling wave tube

Also Published As

Publication number Publication date
EP0243399B1 (en) 1989-10-18
JPH0437535B2 (en) 1992-06-19
EP0243399A1 (en) 1987-11-04
WO1987002507A1 (en) 1987-04-23
JPS63501182A (en) 1988-04-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee