Electron gun for a high power klystron
Patent 4634925 Issued on January 6, 1987. Estimated Expiration Date: 
September 18, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 18, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2644906 3023336 3295066 3500110 3614520 3843902 Means and method for suppressing oscillations in electron guns Gridded convergent flow electron gun for linear beam tubes Picture tube with an electron gun having non-circular aperture Patent #: 4399388 InventorApplicationNo. 06/651854 filed on 09/18/1984US Classes:313/454, Nonplanar cathode313/448With anodeExaminersPrimary: Moore, David K.Attorney, Agent or FirmInternational ClassesH01J 23/02 (20060101)H01J 23/065 (20060101) Foreign Application Priority Data1983-10-07 JPAbstractAn electron gun for a high power klystron which includes a cathode which emits electrons; a focus electrode which, connected to the cathode through a supporting member composed of a material of high electric resistivity, makes the electrons emitted from the cathode produce an electron beam; and an anode which accelerates the electron beam produced by the focus electrode. The supporting member composed of a material of high electric resistivity may alternately be provided between the first and the second portions of the focus electrode, or between the cathode and the second focus electrode portion, wherein the two focus electrode portions are arranged adjacently to each other in the axial direction of the device, and wherein the first focus electrode portion is directly connected to the cathode. | |
