DE1080702B - Permanent magnetic focusing arrangement for a traveling wave tube - Google Patents

Permanent magnetic focusing arrangement for a traveling wave tube

Info

Publication number
DE1080702B
DE1080702B DEI7847A DEI0007847A DE1080702B DE 1080702 B DE1080702 B DE 1080702B DE I7847 A DEI7847 A DE I7847A DE I0007847 A DEI0007847 A DE I0007847A DE 1080702 B DE1080702 B DE 1080702B
Authority
DE
Germany
Prior art keywords
focusing arrangement
permanent magnet
magnetic focusing
permanent magnetic
traveling wave
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.)
Pending
Application number
DEI7847A
Other languages
German (de)
Inventor
John H Bryant
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of DE1080702B publication Critical patent/DE1080702B/en
Pending 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
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087—Magnetic focusing arrangements
    • H01J23/0876—Magnetic focusing arrangements with arrangements improving the linearity and homogeniety of the axial field, e.g. field straightener
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/14—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by electrical means
    • B05D3/141—Plasma treatment
    • B05D3/142—Pretreatment
    • B05D3/144—Pretreatment of polymeric substrates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
    • C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C08G81/021—Block or graft polymers containing only sequences of polymers of C08C or C08F
    • C08G81/022—Block or graft polymers containing only sequences of polymers of C08C or C08F containing sequences of polymers of conjugated dienes and of polymers of alkenyl aromatic compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • 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
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/06—Electron or ion guns
    • H01J23/065—Electron or ion guns producing a solid cylindrical beam
    • 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
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/083—Electrostatic focusing arrangements
    • 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
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087—Magnetic focusing arrangements
    • 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
    • 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
    • H01J23/30—Damping arrangements associated with slow-wave structures, e.g. for suppression of unwanted oscillations
    • 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
    • H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
    • H01J23/40—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit
    • H01J23/42—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit the interaction circuit being a helix or a helix-derived slow-wave structure
    • 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
    • H01J23/36—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy
    • H01J23/40—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit
    • H01J23/48—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit for linking interaction circuit with coaxial lines; Devices of the coupled helices type
    • H01J23/50—Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy to or from the interaction circuit for linking interaction circuit with coaxial lines; Devices of the coupled helices type the interaction circuit being a helix or derived from a helix
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/34—Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
    • H01J25/36—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field
    • H01J25/38—Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field the forward travelling wave being utilised
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/30—Angle modulation by means of transit-time tube
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2/00—Networks using elements or techniques not provided for in groups H03H3/00 - H03H21/00
    • H03H2/005—Coupling circuits between transmission lines or antennas and transmitters, receivers or amplifiers
    • H03H2/006—Transmitter or amplifier output circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M5/00—Manual exchanges
    • H04M5/04—Arrangements for indicating calls or supervising connections for calling or clearing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2429/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer

Description

Die Erfindung befaßt sich, mit einer permanentmagnetischen Fokussierungsanordnung für eine Wanderfeldröhre, bei der die gebündelte Führung des Elektronenstrahls durch ein homogenes Magnetfeld erfolgt, das von einem hohlen zylindrischen Permanentmagnet mit einem im Innern koaxial angeordneten Hohlzylinder aus f erroniagnetischem Material erzeugt wird.The invention is concerned with a permanent magnetic Focusing arrangement for a traveling wave tube in which the bundled guidance of the The electron beam is made through a homogeneous magnetic field created by a hollow cylindrical permanent magnet with a coaxially arranged inside hollow cylinder made of ferroniagnetic material is produced.

Die Erfindung stellt sidh die Aufgabe, bei Wanderfeldröhren den Elektronenstrahl über eine großeLänge derart gebündelt zu führen, daß der Durchmesser des Elektronenstrahls über seine ganze Lauflänge möglichst konstant bleibt. Es ist bekannt, zur Lösung dieser Aufgabe Elektromagnete zu verwenden. Ferner ist durch die USA.-Patentschrift 2259531 eine An-Ordnung zur Erzeugung eines homogenen Magnetfeldes bekanntgeworden, bei der ein höhler zylindrischer Permanentmagnet verwendet wird, in dessen Innerem zur Homogenisierung des Magnetfeldes ein koaxial zu diesem angeordneter HoElzylinder aus ferromagnetischem Material vorgesehen ist. Eine derartige Anordnung hat in der Anwendung bei Wanderfeldröhren, bei denen es wichtig ist, daß die Elektronenströmung längs ihres Weges durch die Verzögerungsleitung ihren Querschnitt möglichst nicht ändert, den Nachteil, daß eine Feldschwächung in der Mitte des durch den Permanentmagnet erzeugten Magnetfeldes auftritt. Dies beruht darauf, daß bei den hohl zylindrischen Permanentmagneten, wie sie für Wanderfeldröhren benötigt werden, die axiale Ausdehnung erheblich größer ist als die radiale. Um diesen Nachteil zu beseitigen, wird bei einer permanentmagnetischen Fokussierungsanordnung für eine Wanderfeldröhre, bei, der die gebündelte Führung des Elektronenstrahls durch ein homogenes Magnetfeld erfolgt, das von einem hohlen zylindrischen Permanentmagnet mit einem im Inneren koaxial angeordneten Hohlzylinder aus ferromagnetischem Material erzeugt wird, erfindungsgemäß vorgeschlagen, daß sich der Querschnitt des Permanentmagnets von der Mitte gegen wenigstens das eine Ende verjüngt.The object of the invention is to transmit the electron beam over a large length in traveling wave tubes to be bundled in such a way that the diameter of the electron beam as possible over its entire length remains constant. It is known to use electromagnets to solve this problem. Further is an An-order by U.S. Patent 2259531 become known for generating a homogeneous magnetic field, in which a hollow cylindrical Permanent magnet is used, inside it to homogenize the magnetic field coaxially to this arranged wooden cylinder made of ferromagnetic material is provided. Such a one Arrangement has been used in traveling wave tubes where it is important that the flow of electrons along their way through the delay line, their cross-section as little as possible changes the disadvantage that a field weakening in the middle of the generated by the permanent magnet Magnetic field occurs. This is due to the fact that the hollow cylindrical permanent magnets, as they are for Traveling wave tubes are required, the axial extension is considerably larger than the radial. Around To eliminate this disadvantage, is with a permanent magnetic Focusing arrangement for a traveling wave tube, in which the bundled guidance of the The electron beam is made through a homogeneous magnetic field created by a hollow cylindrical permanent magnet generated with a coaxially arranged hollow cylinder made of ferromagnetic material inside is proposed according to the invention that the cross section of the permanent magnet from the center tapered towards at least one end.

In der Fig. 1 ist eine permanentmagnetische Fokussierungsanordnung gemäß der Erfindung mit einer Wanderfeldröhre wiedergegeben. Die Wanderfeldröhre 1 besteht aus dem zylindrischen Gehäuse 2, welches an dem einen Ende das Strahlerzeugungssysitem 3 und an dem entgegengesetzten Ende die Auffangelektrode 3 a und dazwischen den Wechselwirkungskreis 4 (Verzögerungsleitung) enthält. Konzentrisch zu dem Gehäuse 2 ist die erfindungsgemäße permanentmagnetische Fokussierungsanordnung angeordnet. Diese besteht aus dem Hohlzylinder 7 aus ferromagnetischem Material und aus dem hohlen zylindrischen Permanentmagnet 6, dessen Innendurch-Permanentmagnetische
Fokussierungsanordnung
für eine Wanderfeldröhre1 shows a permanent magnetic focusing arrangement according to the invention with a traveling wave tube. The traveling wave tube 1 consists of the cylindrical housing 2, which contains the beam generating system 3 at one end and the collecting electrode 3 a at the opposite end and the interaction circuit 4 (delay line) in between. The permanent magnetic focusing arrangement according to the invention is arranged concentrically to the housing 2. This consists of the hollow cylinder 7 made of ferromagnetic material and of the hollow cylindrical permanent magnet 6, the inside of which is permanent magnets
Focusing arrangement
for a traveling wave tube

Anmelder:
International Standard ElectricApplicant:
International Standard Electric

Corporation,
New York, N. Y. (V. St. A.)Corporation,
New York, NY (V. St. A.)

Vertreter: Dipl.-Ing. H. Ciaessen, Patentanwalt,
Stuttgart-Zuffenhausen, Hellmuth-Hirth-Str. 42Representative: Dipl.-Ing. H. Ciaessen, patent attorney,
Stuttgart-Zuffenhausen, Hellmuth-Hirth-Str. 42

Beanspruchte Priorität:
V. St. v. Amerika vom 31. Oktober 1952Claimed priority:
V. St. v. America October 31, 1952

John H. Bryant, Nutley, N. J. (V. St. A.),
ist als Erfinder genannt wordenJohn H. Bryant, Nutley, NJ (V. St. A.),
has been named as the inventor

messer sich von der Mitte zu den Enden allmählich vergrößert, um über die Länge des Wechselwirkungskreises 4 ein gleichförmiges (homogenes) Magnetfeld und damit einen im wesentlichen gleichförmigen Elektronenstrahl zu erhalten. Das Gehäuse 2 kann aus Keramik oder nichtmagnetisahem Material bestehen. Der Wechselwirkungskreis 4 besteht aus einer Hoehfrequenzleitung, vorzugsweise in Form einer Wendel, die zumeist durch eine Anzahl dielektrischer Stäbe 14 gehaltert wird, welche ihrerseits von den magnetischen Teilen 10 und 11 getragen werden. Die Verzögerungsleitung kann auch andere Formen annehmen, beispielsweise kann sie aus einer Anzahl von hintereinanderliegenden ringförmigen Scheiben, oder Platten bestehen. Die Übertragungsglieder 12 und 13 am Ein- und Ausgang der Wendelleitung dienen zur Hochfrequenzankopplung. gradually enlarges from the center to the ends in order to create a uniform (homogeneous) magnetic field over the length of the interaction circle 4 and thereby obtain a substantially uniform electron beam. The housing 2 can be made from Ceramic or non-magnetic material. The interaction circuit 4 consists of a high frequency line, preferably in the form of a helix, which is usually formed by a number of dielectric rods 14 which in turn are supported by the magnetic parts 10 and 11. The delay line can also take other forms, for example it can be from a number of consecutive annular disks, or plates are made. The transmission links 12 and 13 at the input and output of the helical cable are used for high-frequency coupling.

Bei dem in der Fig. 2 gezeigten Ausführungsbeispiel nimmt der Außendurchmesser des Permanentmagnets 18 von der Mitte gegen die Enden ab. Mit 7 ist wiederum der ferromagnetische Hohlzylinder im Inneren des Permanentmagnets bezeichnet.In the embodiment shown in FIG. 2, the outer diameter of the permanent magnet increases 18 from the middle towards the ends. With 7 is the ferromagnetic hollow cylinder in turn Inside the permanent magnet.

Claims (4)

Patentansprüche:Patent claims: 1. Permanentmagnetische Fokussierungsanordnung für eine Wanderfeldröhre, bei der die gebündelte Führung des Elektronenstrahls durch ein homogenes Magnetfeld erfolgt, das von einem hohlen zylindrischen Permanentmagnet mit einem1. Permanent magnetic focusing arrangement for a traveling wave tube, in which the bundled The electron beam is guided through a homogeneous magnetic field that is generated by a hollow cylindrical permanent magnet with a 00950773450095077345 im Inneren koaxial angeordneten HoMzylinder aus ferromagnetisdhem Material erzeugt wird, dadurch gekennzeichnet, daß sich der Querschnitt des Permanentmagnets von der Mitte gegen wenigstens das eine Ende verjüngt.inside coaxially arranged HoM cylinder ferromagnetic material is produced, characterized in that the cross section of the Permanent magnet tapers from the center towards at least one end. 2. Permanentmagnetische Fokussierungsanordnung nach Anspruch 1, dadurch gekennzeichnet, daß der Innendurchmesser des Permanentmagnets konstant ist und dessen Außendurchmesser von der Mitte gegen die Enden kleiner wird.2. Permanent magnetic focusing arrangement according to claim 1, characterized in that that the inner diameter of the permanent magnet is constant and the outer diameter of the Middle becomes smaller towards the ends. 3. Permanentmagnetische Fokussierungsanordnung nach Anspruch 1, dadurch gekennzeichnet,3. Permanent magnetic focusing arrangement according to claim 1, characterized in that daß der Außendurchmesser des Permanentmagnets konstant ist und dessen Innendurchmesser von der Mitte gegen die Eaden größer wird.that the outer diameter of the permanent magnet is constant and the inner diameter of the Middle against the Eaden gets bigger. 4. Permanentmagnetische Fokussierungsanordnung nach Anspruch 3, dadttroh gekennzeichnet, daß der Mittelteil der Innenfläche des Permanentmagnets leicht verrundet ist, um einen plötzlichen Übergang zu vermeiden.4. Permanent magnetic focusing arrangement according to claim 3, characterized dadttroh, that the central part of the inner surface of the permanent magnet is slightly rounded to a sudden Avoid transition. In Betracht gezogene Druckschriften:
USA.-Patentschriften Nr. 2 259 531, 2 305 884.Considered publications:
U.S. Patent Nos. 2,259,531, 2,305,884. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEI7847A 1952-04-08 1953-10-29 Permanent magnetic focusing arrangement for a traveling wave tube Pending DE1080702B (en)

Applications Claiming Priority (18)

Application Number Priority Date Filing Date Title
US776923XA 1952-04-08 1952-04-08
DE316934X 1952-04-08
DE734963X 1952-07-05
US778846XA 1952-08-19 1952-08-19
US740852XA 1952-08-19 1952-08-19
US773393XA 1952-08-21 1952-08-21
US773783XA 1952-08-23 1952-08-23
US777224XA 1952-09-29 1952-09-29
US777225XA 1952-10-11 1952-10-11
US773394XA 1952-10-31 1952-10-31
DE745099X 1952-11-07
US756370XA 1952-11-19 1952-11-19
US754861XA 1953-04-01 1953-04-01
DE780806X 1953-04-18
DE771189X 1953-11-27
DE767078X 1954-04-03
US861229XA 1956-10-26 1956-10-26
US886318XA 1957-05-03 1957-05-03

Publications (1)

Publication Number Publication Date
DE1080702B true DE1080702B (en) 1960-04-28

Family

ID=31982865

Family Applications (2)

Application Number Title Priority Date Filing Date
DEI7740A Expired DE963704C (en) 1952-04-08 1953-09-27 Adjustment arrangement for traveling field pipes
DEI7847A Pending DE1080702B (en) 1952-04-08 1953-10-29 Permanent magnetic focusing arrangement for a traveling wave tube

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DEI7740A Expired DE963704C (en) 1952-04-08 1953-09-27 Adjustment arrangement for traveling field pipes

Country Status (7)

Country Link
US (4) US2843789A (en)
BE (15) BE523117A (en)
CH (8) CH316934A (en)
DE (2) DE963704C (en)
FR (18) FR65473E (en)
GB (20) GB766790A (en)
NL (3) NL95555C (en)

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FR66421E (en) 1957-02-27
CH334111A (en) 1958-11-15
GB776923A (en) 1957-06-12
FR69068E (en) 1958-09-22
FR65616E (en) 1956-02-29
CH322499A (en) 1957-06-15
GB886318A (en) 1962-01-03
US2843789A (en) 1958-07-15
GB773394A (en) 1957-04-24
BE524397A (en) 1900-01-01
DE963704C (en) 1957-05-09
NL98392C (en) 1900-01-01
US2857547A (en) 1958-10-21
GB767078A (en) 1957-01-30
BE534531A (en) 1900-01-01
BE527787A (en) 1900-01-01
FR68403E (en) 1958-04-30
GB734963A (en) 1955-08-10
BE523116A (en) 1900-01-01
CH335353A (en) 1958-12-31
FR65608E (en) 1956-02-29
BE522303A (en) 1900-01-01
BE522186A (en) 1900-01-01
BE528213A (en) 1900-01-01
CH317676A (en) 1956-11-30
GB754563A (en) 1956-08-08
FR65606E (en) 1956-02-29
GB745099A (en) 1956-02-22
BE523897A (en) 1900-01-01
GB773783A (en) 1957-05-01
BE523425A (en) 1900-01-01
BE521167A (en) 1900-01-01
BE519037A (en) 1900-01-01
GB740852A (en) 1955-11-23
BE545710A (en) 1900-01-01
US2812469A (en) 1957-11-05
GB754861A (en) 1956-08-15
FR65591E (en) 1956-02-28
BE524061A (en) 1900-01-01
GB810267A (en) 1959-03-11
NL95555C (en) 1900-01-01
FR65607E (en) 1956-02-29
GB773393A (en) 1957-04-24
GB780806A (en) 1957-08-07
GB771189A (en) 1957-03-27
CH316934A (en) 1956-10-31
US2911599A (en) 1959-11-03
GB766790A (en) 1957-01-23
NL196187A (en) 1900-01-01
FR68404E (en) 1958-04-30
FR66228E (en) 1956-06-05
CH333699A (en) 1958-10-31
FR68804E (en) 1958-06-10
FR69062E (en) 1958-09-22
FR66230E (en) 1956-06-05
FR68407E (en) 1958-04-30
GB778846A (en) 1957-07-10
FR65473E (en) 1956-02-21
GB756370A (en) 1956-09-05
GB777224A (en) 1957-06-19
FR68807E (en) 1958-06-10
FR66233E (en) 1956-06-05
CH329897A (en) 1958-05-15
BE523117A (en) 1900-01-01
BE523177A (en) 1900-01-01
GB861229A (en) 1961-02-15
CH330643A (en) 1958-06-15
GB777225A (en) 1957-06-19
FR65589E (en) 1956-02-28

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