Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 8040067 | Magnetron with cathode decoupled from output A magnetron including a cathode, an anode axially aligned with the cathode and including a plurality of radial vanes defining resonant cavities, an output coupler connected to a first set of the vanes, a second set of vanes not connected to the output coupler, and e... | 10/18/2011 |
| 7816871 | Projector and method of turning on light source device of projector To provide a projector using a light source device that is rapidly and reliably turned on and can stably obtain a desired amount of light and a method of rapidly and reliably turning on a light source device of a projector. A power control unit adjusts the am... | 10/19/2010 |
| 7327088 | Magnetron In a magnetron having a body 1 defining an anode 2 divided into resonant cavities 4 by vanes 3 and having a coaxial cathode 5, r.f. energy produced when a magnetic field is applied parallel to the axis of the anode is launched alon... | 02/05/2008 |
| 7279842 | Magnetron with wavy straps A magnetron of the type having a strap ring has protruding regions of the strap ring arranged so as to increase the capacitance between the strap ring and another strap ring or between the strap ring and anode vanes. Increasing the capacitance at selected portions o... | 10/09/2007 |
| 7218053 | Electron beam tube output arrangement An electron beam tube of the type for amplification of RF signals comprising an electron gun, an interaction region within a vacuum, an RF input and an RF output arrangement, the RF output arrangement comprising an output coaxial line and a coaxial divider, wherein ... | 05/15/2007 |
| 7199524 | Magnetron arrangements A magnetron output arrangement includes a coaxial output adapted to be coupled in an endfire configuration to a rectangular waveguide. The waveguide has a flange for mating with the magnetron output arrangement. The coaxial output includes a central conductor. The o... | 04/03/2007 |
| 7164234 | High-power microwave system employing a phase-locked array of inexpensive commercial magnetrons A high-power microwave generator employing a plurality of inexpensive commercial magnetron tubes cross-coupled by means of a secondary coupling path between each magnetron output pair, whereby a portion of the output energy from a first magnetron tube is injected in... | 01/16/2007 |
| 7067779 | Magnetron arrangement A magnetron arrangement has a coaxial output terminating in a probe which launches energy from the magnetron along a rectangular waveguide. The coaxial output is arranged in an endfire configuration with respect to the waveguide, giving a compact arrangement compare... | 06/27/2006 |
| 7067782 | Magnetron A magnetron that includes a choke coil which is connected at one end to a cathode terminal and at the other end to a capacitor to form an LC circuit. The choke coil is made up of a first core type inductor, a second core type inductor and an air-core inductor, conne... | 06/27/2006 |
| 7026761 | Magnetrons A magnetron includes a decoupling plate located between the end hat of the magnetron cathode and an output coupling member. The use of the decoupling plate presents a high impedance and gives a resonant circuit which is arranged to be resonant at the operating frequ... | 04/11/2006 |
| 6985042 | Magnetron The object to the present invention is to provide a magnetron which can reduce spurious oscillation such as the π−1 mode which presents a problem particularly in magnetrons and can reduce spurious radiations without placing filters. The magnetron of the present i... | 01/10/2006 |
| 6972522 | Magnetron A magnetron capable of being efficiently assembled is provided. The magnetron includes a filament, a pair of shields, a pair of leads, a pair of connection plates, and a pair of terminal rods. The filament is coil-shaped. The shields are attached to both ends of the... | 12/06/2005 |
| 6960283 | Anode and magnetron therewith Anode with a 2450 MHz resonance frequency, and magnetron therewith, the anode including a cylindrical anode body with an inside diameter in a range of 32.5 to 34.0 mm, a total of ten vanes fitted to an inside circumferential surface of the anode body in a radial dir... | 11/01/2005 |
| 6844689 | Multiple beam linear accelerator system A multiple beam linear accelerator system and method where two or more accelerator waveguides are driven by a single high power microwave source. A single RF power system is multiplexed to drive the plurality of accelerator waveguides. Each accelerator waveguide is ... | 01/18/2005 |
| 6815897 | Magnetrons having a coaxial line output with unwanted mode energy reduction A magnetron has an output comprising a coaxial line 15 which transmits energy from a wanted oscillator mode as a first coaxial waveguide mode and energy from an unwanted oscillator mode as a second cylindrical waveguide mode. Energy in the cylindrical wavegui... | 11/09/2004 |
| 6791268 | Noise filter for a high frequency generator A noise filter for a high frequency generator maximizes a frequency band in which noise is attenuated by adjusting a spacing between winding turns of core inductors provided in the noise filter. The noise filter includes a coke coil having a first winding unit havin... | 09/14/2004 |
| 6756735 | Magnetron and method for joining magnetron components A magnetron includes an anode having an anode cylinder and anode vanes; a cathode having a filament; a condenser, a choke coil, and a plurality of leads for providing power to the filament; a plurality of magnets, pole pieces, and a yoke for forming a magnetic circu... | 06/29/2004 |
| 6717365 | Magnetron Magnetron including a cylindrical anode having a resonant space formed therein and a cathode fitted therein, magnets fitted to upper and lower sides of the anode, a yoke fitted on outsides of the anode and the magnets to for a closed circuit, and cooling devices inc... | 04/06/2004 |
| 6707253 | Matching circuit and plasma processing apparatus The present invention provides a matching circuit which has a wide range in which matching can be achieved and the matched state of which is stabilized with respect to a change in the load state. To an input terminal (31) of a matching circuit (30), on... | 03/16/2004 |
| 6646384 | Microwave powered UV lamp with improved RF gasket arrangement The present invention is a microwave excited lamp and a microwave gasket. A microwave excited lamp (10) in accordance with the invention includes at least one microwave source (12); a microwave structure (20) comprising a metallic material to which microw... | 11/11/2003 |
| 6566817 | High intensity discharge lamp with only one electrode A high intensity discharge (HID) lamp includes a starting gas, a vaporizable fill, and only one electrode sealed within a light transmissive envelope. The one electrode produces a high intensity discharge during operation of the lamp and is connected to a... | 05/20/2003 |
| 6507153 | Gas discharge lamp with ellipsoidal discharge chamber The invention relates to a gas discharge lamp, in particular a high-pressure discharge lamp for use in automobiles. The invention further relates to a lighting system with at least one light source, at least one light coupling system, at least one optical... | 01/14/2003 |
| 6437511 | Magnetron having choke structures with a gap spacing therebetween A magnetron is disclosed in which the structure of the choke is altered, so that when designing the choke, the design allowance range is expanded so as to realize the optimum efficiency. Thus the unnecessary harmonic waves are more inhibited, and the coup... | 08/20/2002 |
| 6384537 | Double loop output system for magnetron A magnetron comprises an anode ring concentrically disposed around and spaced from a cathode. The anode ring further comprises a plurality of anode vanes extending radially toward the cathode with cavities being defined between adjacent ones of the plural... | 05/07/2002 |
| 6097154 | Microwave oven magnetron design with a harmonic choke following a numerical expression A method for designing a microwave oven magnetron includes design for a permissible range of a length of a choke for suppression of a harmonic higher than the fourth harmonic. The inventive magnetron includes; a cathode with a filament; a cylindrical meta... | 08/01/2000 |
| 6049170 | High frequency discharge energy supply means and high frequency electrodeless discharge lamp device Use of a side resonator group comprising a plurality of side resonators, each including both an electromagnetically inductive function section made of a substantially ringed conductive material and an electrically capacitive function section made of a gap... | 04/11/2000 |
| 5894198 | Magnetron with a fifth harmonic choke A magnetron including: an anode cylinder in which a plurality of vanes are formed, a filament provided at a center of the anode cylinder, a top hat which supports an upper end of the filament, a top lead for connecting the top hat at an upper end of the t... | 04/13/1999 |
| 5838212 | High frequency transition arrangement In a high frequency transmission arrangement such as that used to deliver microwave energy from a magnetron to a waveguide, a ceramic probe is covered with a non-ceramic dielectric material such as PTFE. This allows the magnetron to operate satisfactorily... | 11/17/1998 |
| 5767749 | Microwave oscillator A microwave oscillator with an M-type interdigital slow wave resonator structure is disclosed. In the above oscillator, the anode has top, middle and bottom resonance discs. The top disc has downward extending vanes and defines an upper resonance chamber,... | 06/16/1998 |
| 5552672 | Magnetron construction particularly useful as a relativistic magnetron A magnetron includes a cathode and an anode in a vacuum chamber radially spaced from each other to define an interaction region in which a magnetic field is produced parallel to the interaction region. The anode is supplied with positive high-voltage puls... | 09/03/1996 |
| 5525865 | Compact microwave source for exciting electrodeless lamps Apparatus for exciting electrodeless lamps. A magnetron for generating electromagnetic energy in the microwave region includes an extension for its antenna terminal. The extension extends the length of the antenna to control the phase of loading on the ma... | 06/11/1996 |
| 5461283 | Magnetron output transition apparatus having a circular to rectangular waveguide adapter A magnetron transition apparatus is provided which permits transmission of a microwave RF signal between a magnetron and an output waveguide. The transition apparatus is connected to the magnetron and receives the RF signal from the magnetron, while maint... | 10/24/1995 |
| 5418428 | Waveguide system with support for magnetrons A support for a waveguide system includes a support body, a receiver formed at one side portion of the support body, a control plates selectively coupled to the receiver and adapted to control the coupling condition between the support body and a magnetro... | 05/23/1995 |
| 5369335 | Coupling device for antenna feeder in a magnetron comprising engaged male and female members This invention relates to a magnetron with a device for coupling an antenna feeder to an evacuation tube. The coupling device comprises a male engaging member formed at an upper end of the antenna feeder and a female engaging member formed at a lower end ... | 11/29/1994 |
| 5350905 | Magnetron for a microwave oven In a magnetron for a microwave oven comprising a plurality of vanes as an anode and an antenna feeder mounted to the vanes, an antenna feeder fixing device comprising a plurality of radially spaced grooves formed at the upper surface of every other vane s... | 09/27/1994 |
| 5325020 | Circular waveguide plasma microwave sterilizer apparatus An apparatus for plasma sterilization includes a sterilization chamber and at least one microwave plasma generator for producing gas plasma products communicating therewith. The microwave plasma generator comprises a cylindrical metal waveguide and an axi... | 06/28/1994 |
| 5313139 | Condenser unit for a magnetron capable of preventing the leakage of microwave energy A condenser unit for magnetron comprising a condenser and a mounting plate. The mounting plate is adapted to fixedly mount the condenser to the upper filter box and provided with an elastic periphery member formed as outwardly extending from the periphery... | 05/17/1994 |
| 5294864 | Magnetron for microwave oven A magnetron for a microwave oven comprising a spacer having a disc shape fitted between a lower pole piece and a F-seal supporting the lower pole piece. The spacer has a pair of lead holes through which a center lead and a side lead extend, respectively. ... | 03/15/1994 |
| 5227701 | Gigatron microwave amplifier An electron tube for achieving high power at high frequency with high efficiency, including an input coupler, a ribbon-shaped electron beam and a traveling wave output coupler. The input coupler is a lumped constant resonant circuit that modulates a field... | 07/13/1993 |
| 5216327 | Magnetron coaxial adaptor having a cap which fits over the magnetron output antenna An impedance matching coaxial adaptor for use with magnetron power sources having output coaxial probes includes an outer cylindrical housing disposed around a cylindrical inner housing. The inner housing is disposed along a common axis of the outer housi... | 06/01/1993 |
