| |
 |
|
Class Information
Number: 313/628
Name: Electric lamp and discharge devices > With gas or vapor > Having electrode heated by space discharge current > Coil type
Description: Subject matter wherein at least part of the electrode is in the form of a wound spiral.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7215082 |
Electrodeless self-ballasted fluorescent lamp and electrodeless discharge lamp operating apparatus |
May. 8, 2007 |
| 7211956 |
Short arc ultra-high pressure mercury lamp with rounded end faces of coil tips and process of producing such a lamp |
May. 1, 2007 |
| 6984928 |
Coil filament |
Jan. 10, 2006 |
| 6548965 |
Electrodeless fluorescent lamp with low wall loading |
Apr. 15, 2003 |
| 6492772 |
HIGH PRESSURE DISCHARGE LAMP, HIGH PRESSURE DISCHARGE LAMP ELECTRODE, METHOD OF PRODUCING THE HIGH PRESSURE DISCHARGE LAMP ELECTRODE, AND ILLUMINATION DEVICE AND IMAGE DISPLAY APPARATUS RESPEC |
Dec. 10, 2002 |
| 6307320 |
High pressure discharge lamp with bent tip electrodes |
Oct. 23, 2001 |
| 6201349 |
Electrode with a helical attachment |
Mar. 13, 2001 |
| 5962972 |
Electric incandescent lamp |
Oct. 5, 1999 |
| 5942850 |
Miniature projection lamp |
Aug. 24, 1999 |
| 5896007 |
Halogen incandescent lamp with heat transfer by conduction |
Apr. 20, 1999 |
| 5793161 |
High-pressure discharge lamp electrode |
Aug. 11, 1998 |
| 5742125 |
High-pressure discharge lamp with torsionally wound electrode structure |
Apr. 21, 1998 |
| 5510675 |
Flicker-suppressed, low-power, high-pressure discharge lamp |
Apr. 23, 1996 |
| 5451837 |
Cathode for high intensity discharge lamp |
Sep. 19, 1995 |
| 5278474 |
Discharge tube |
Jan. 11, 1994 |
| 5258687 |
Mercury vapor discharge device |
Nov. 2, 1993 |
| 5214351 |
Discharge tube with glow and arc discharge electrodes |
May. 25, 1993 |
| 5138229 |
Single-sealed metal vapor electric discharge lamp |
Aug. 11, 1992 |
| 5111108 |
Vapor discharge device with electron emissive material |
May. 5, 1992 |
| 5004951 |
Single side-sealed metal vapor discharge lamp |
Apr. 2, 1991 |
| 5001397 |
High-pressure gas discharge lamp having electrodes with coil layers having interlocking turns |
Mar. 19, 1991 |
| 4952841 |
High-pressure discharge lamp with improved electrodes |
Aug. 28, 1990 |
| 4851735 |
Single-ended high-pressure discharge lamp with coil and mandrel electrode |
Jul. 25, 1989 |
| 4847534 |
High-pressure discharge lamp with torsionally wound electrode structure |
Jul. 11, 1989 |
| 4839560 |
Heatable electrode for high-pressure gas discharge lamps |
Jun. 13, 1989 |
| 4783611 |
High-pressure gas discharge lamp with electrodes having double layer coil |
Nov. 8, 1988 |
| 4724358 |
High-pressure metal vapor arc lamp lit by direct current power supply |
Feb. 9, 1988 |
| 4479074 |
High intensity vapor discharge lamp with sintering aids for electrode emission materials |
Oct. 23, 1984 |
| 4420708 |
High-pressure sodium vapor discharge lamp |
Dec. 13, 1983 |
| 4401916 |
High-pressure discharge lamp |
Aug. 30, 1983 |
| 4317066 |
Gaseous discharge lamp having novel electrode mountings |
Feb. 23, 1982 |
| 4277714 |
Metal halide arc discharge lamp having coiled coil electrodes |
Jul. 7, 1981 |
| 4275329 |
Electrode with overwind for miniature metal vapor lamp |
Jun. 23, 1981 |
| 4232243 |
High pressure electric discharge lamp |
Nov. 4, 1980 |
| 4210840 |
HID Lamp emission material |
Jul. 1, 1980 |
| 4205249 |
Electrode structure for halogen leak detector |
May. 27, 1980 |
| 4152620 |
High intensity vapor discharge lamp with sintering aids for electrode emission materials |
May. 1, 1979 |
| 4152619 |
HID lamp electrode comprising barium (yttrium or rare earth metal) tungstate or molybdate |
May. 1, 1979 |
| 4123685 |
HID lamp electrode comprising solid solution of dibarium calcium molybdate and tungstate |
Oct. 31, 1978 |
| 4105908 |
Metal halide lamp having open tungsten coil electrodes |
Aug. 8, 1978 |
| 4052636 |
High pressure sodium vapor lamp stabilized for pulse operation |
Oct. 4, 1977 |
| 4044276 |
High pressure mercury vapor discharge lamp having improved electrodes |
Aug. 23, 1977 |
|
|
|
