Celebrity Inventors
Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 7098610 | Incandescent light power controller with predetermined off-state impedance An incandescent light bulb life extender circuit is designed to attach to the screw base of a conventional light bulb or incorporated in series with the AC powering the bulb. The circuit employs a bidirectional semiconductor switch that reduces the brightness of the... | 08/29/2006 |
| 4992703 | Metal halide lamp with dual starting electrodes and improved maintenance A metal halide high intensity discharge lamp having an arc tube assembly including a pair of discharge electrodes and a pair of starting electrodes. Each starting electrode is adjacent a respective discharge electrode. During starting, the lamp makes the ... | 02/12/1991 |
| 4888528 | Method of and apparatus for ultrahigh frequency starting of high intensity discharge lamps Ignition of high intensity discharge (HID) lamps can be enhanced by the application of ultrahigh frequency (UHF) electric fields at modest power levels. The implementation of UHF power assisted starting offers considerable advantage over known prior art l... | 12/19/1989 |
| 4631453 | Triggerable ceramic gas tube voltage breakdown device A triggerable ceramic gas tube voltage breakdown device, particularly adapted for use in an electrical circuit for controlling the light output of a photoflash lamp, includes means for reducing the attenuation of an electrical trigger pulse in the region ... | 12/23/1986 |
| 4277725 | Gas and/or vapor discharge lamp The invention relates to a high-pressure sodium lamp which is provided with a discharge tube having an external auxiliary electrode. The auxiliary electrode is switched off by a bimetallic switch in the operating condition of the lamp. According to the in... | 07/07/1981 |
