| Patent Number |
Title Of Patent |
Date Issued |
| 5506473 |
Electron gun for providing electrons grouped in short pulses |
April 9, 1996 |
| This gun comprises a cathode K, a grid G, and an anode A between which the applied voltages are radio-frequency voltages. The cathode is disposed on the central conductor of a coaxial cavity, facing said grid terminating said cavity. Said cavity is terminated at the other end by a short- |
| 4490854 |
Transistor mixer for ultra-high frequency transmitters |
December 25, 1984 |
| A mixer transistor of the MESFET type comprising an emitter transistor connected to the drain or source electrode of the MESFET transistor for supplying an intermediate frequency. A local oscillator signal is applied to the gate of the MESFET transistor. A filter is connected to the drai |
| 4229657 |
.gamma.-Ray irradiation head for panoramic irradiation |
October 21, 1980 |
| The invention relates to a .gamma.-ray irradiation head for panoramic irradiation comprising a tungsten target revolving about an axis, and means for deflecting electrons around the same axis for producing photons in several directions either successively or simultaneously. When the beam |
| 4069456 |
Microwave systems for eliminating spurious signals from pulsed source |
January 17, 1978 |
| Selective transmission systems for transmitting from an H.F. generator to a load device whose electrical characteristics may vary rapidly, a pulsed main H.F. signal of given frequency, and for eliminating the spurious signal or signals accommpanying the main H.F. signal at the beginning |
