GB2259181B - Magnetron - Google Patents

Magnetron

Info

Publication number: GB2259181B
Authority: GB; United Kingdom
Prior art keywords: magnetron
Prior art date: 1991-08-30
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 - Fee Related

Application number

GB9123924A

Other versions

GB2259181A (en

GB9123924D0 (en

Inventor

Peter Frederick Lewis

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.)

Teledyne UK Ltd

Original Assignee

EEV 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.)

1991-08-30

Filing date

1991-11-11

Publication date

1995-06-21

1991-11-11 Application filed by EEV Ltd filed Critical EEV Ltd

1991-11-11 Priority to GB9318324A priority Critical patent/GB2271021B/en

1992-01-02 Publication of GB9123924D0 publication Critical patent/GB9123924D0/en

1992-08-31 Priority to JP23072092A priority patent/JPH06176701A/en

1993-03-03 Publication of GB2259181A publication Critical patent/GB2259181A/en

1995-06-21 Application granted granted Critical

1995-06-21 Publication of GB2259181B publication Critical patent/GB2259181B/en

2011-11-11 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Classifications

- 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
- H01J25/52—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode
- H01J25/58—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode having a number of resonators; having a composite resonator, e.g. a helix
- H01J25/587—Multi-cavity magnetrons
- 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
- H01J23/54—Filtering devices preventing unwanted frequencies or modes to be coupled to, or out of, the interaction circuit; Prevention of high frequency leakage in the environment

GB9123924A 1991-08-30 1991-11-11 Magnetron Expired - Fee Related GB2259181B (en)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
GB9318324A GB2271021B (en)	1991-08-30	1991-11-11	Magnetron
JP23072092A JPH06176701A (en)	1991-08-30	1992-08-31	Magnetron

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB919118593A GB9118593D0 (en)	1991-08-30	1991-08-30	Magnetron

Publications (3)

Publication Number	Publication Date
GB9123924D0 GB9123924D0 (en)	1992-01-02
GB2259181A GB2259181A (en)	1993-03-03
GB2259181B true GB2259181B (en)	1995-06-21

Family

ID=10700678

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
GB919118593A Pending GB9118593D0 (en)	1991-08-30	1991-08-30	Magnetron
GB9123924A Expired - Fee Related GB2259181B (en)	1991-08-30	1991-11-11	Magnetron

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
GB919118593A Pending GB9118593D0 (en)	1991-08-30	1991-08-30	Magnetron

Country Status (3)

Country	Link
DE (1)	DE4228687A1 (en)
FR (1)	FR2680912A1 (en)
GB (2)	GB9118593D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19654604A1 (en) *	1996-12-20	1998-07-02	Gregor Wartig	Cell activator using negative oxygen ions e.g. for ionising oxygen in living rooms
GB201101062D0 (en)	2011-01-21	2011-03-09	E2V Tech Uk Ltd	Electron tube
GB2489220B (en) *	2011-03-17	2018-02-07	E2V Tech (Uk) Limited	Magnetron

Citations (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB592410A (en) *	1943-03-26	1947-09-17	Standard Telephones Cables Ltd	Improvements in magnetrons
GB625275A (en) *	1945-08-28	1949-06-24	Westinghouse Electric Int Co	Improvements in or relating to magnetrons
GB631084A (en) *	1943-01-28	1949-10-26	Westinghouse Electric Int Co	Improvements in or relating to magnetrons
GB698381A (en) *	1951-10-04	1953-10-14	Licencia Talalmanyokat	Improvements in and relating to jointing pieces for electric conductors
GB888321A (en) *	1959-11-30	1962-01-31	M O Valve Co Ltd	Improvements in or relating to thermionic cathodes
US3315121A (en) *	1961-04-27	1967-04-18	Gen Electric	Crossed-field electric discharge device
GB1158590A (en) *	1965-08-30	1969-07-16	Gen Electric	Cross-Field Discharge Device Arrangement and Microwave Circuits Incorporating the Same
GB1248227A (en) *	1967-11-14	1971-09-29	Gen Electric	Crossed field discharge device
US3936766A (en) *	1975-03-05	1976-02-03	General Electric Company	Magnetron with capacitively coupled external cavity resonator
GB1452307A (en) *	1972-12-18	1976-10-13	Hitachi Ltd	Magnetron
GB1490884A (en) *	1974-01-11	1977-11-02	Tokyo Shibaura Electric Co	Magnetron
GB1545154A (en) *	1976-11-01	1979-05-02	Microwave Ass Inc	Microwave magnetrons
EP0345890A1 (en) *	1988-06-09	1989-12-13	Koninklijke Philips Electronics N.V.	Electric lamp

1991
- 1991-08-30 GB GB919118593A patent/GB9118593D0/en active Pending
- 1991-11-11 GB GB9123924A patent/GB2259181B/en not_active Expired - Fee Related
1992
- 1992-08-28 DE DE19924228687 patent/DE4228687A1/en not_active Withdrawn
- 1992-08-28 FR FR9210386A patent/FR2680912A1/en not_active Withdrawn

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB631084A (en) *	1943-01-28	1949-10-26	Westinghouse Electric Int Co	Improvements in or relating to magnetrons
GB592410A (en) *	1943-03-26	1947-09-17	Standard Telephones Cables Ltd	Improvements in magnetrons
GB625275A (en) *	1945-08-28	1949-06-24	Westinghouse Electric Int Co	Improvements in or relating to magnetrons
GB698381A (en) *	1951-10-04	1953-10-14	Licencia Talalmanyokat	Improvements in and relating to jointing pieces for electric conductors
GB888321A (en) *	1959-11-30	1962-01-31	M O Valve Co Ltd	Improvements in or relating to thermionic cathodes
US3315121A (en) *	1961-04-27	1967-04-18	Gen Electric	Crossed-field electric discharge device
GB1158590A (en) *	1965-08-30	1969-07-16	Gen Electric	Cross-Field Discharge Device Arrangement and Microwave Circuits Incorporating the Same
GB1248227A (en) *	1967-11-14	1971-09-29	Gen Electric	Crossed field discharge device
GB1452307A (en) *	1972-12-18	1976-10-13	Hitachi Ltd	Magnetron
GB1490884A (en) *	1974-01-11	1977-11-02	Tokyo Shibaura Electric Co	Magnetron
US3936766A (en) *	1975-03-05	1976-02-03	General Electric Company	Magnetron with capacitively coupled external cavity resonator
GB1545154A (en) *	1976-11-01	1979-05-02	Microwave Ass Inc	Microwave magnetrons
EP0345890A1 (en) *	1988-06-09	1989-12-13	Koninklijke Philips Electronics N.V.	Electric lamp

Also Published As

Publication number	Publication date
DE4228687A1 (en)	1993-03-04
FR2680912A1 (en)	1993-03-05
GB2259181A (en)	1993-03-03
GB9123924D0 (en)	1992-01-02
GB9118593D0 (en)	1991-10-16

Publication	Publication Date	Title
DE69224906D1 (en)	1998-04-30	Thermotropes flüssig-kristallines segment-blockcopolymer
ZA922420B (en)	1992-12-30	Grf-analogs ii
DE69228486D1 (en)	1999-04-01	Thrombosefilter
EP0509582A3 (en)	1993-05-12	Smd-resistor
BG95816A (en)	1994-06-30	New sulphonylcarbamides
GB2257491B (en)	1995-09-27	Autotensioner
GB2243018B (en)	1994-08-03	Magnetron
GB2256921B (en)	1994-12-14	Oven
GB2259257B (en)	1995-05-17	Playball
GB9127250D0 (en)	1992-02-19	Modification
DE69213020D1 (en)	1996-09-26	Squaryliumfarbstoffe
GB2266180B (en)	1995-08-30	Magnetron
GB2263013B (en)	1995-10-18	A magnetron
GB2259181B (en)	1995-06-21	Magnetron
GB2271021B (en)	1995-06-21	Magnetron
GB9002593D0 (en)	1990-10-17	Magnetrons
EP0516484A3 (en)	1993-05-26	Msk-modulator
GB9108384D0 (en)	1991-06-05	Bicycloheptanes
GB2259180B (en)	1994-12-07	Magnetron
EP0509271A3 (en)	1992-11-25	Siloxi-polytetrahydrofuran
GB9124208D0 (en)	1992-01-08	Magnetron
GB9210483D0 (en)	1992-07-01	Magnetron
GB9108334D0 (en)	1991-06-05	Decor-mate
PL284151A1 (en)	1991-09-09	Magnetron
GB2242308B (en)	1994-03-02	Magnetrons

Legal Events

Date	Code	Title	Description
1996-07-10	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 19951111