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Class Information
Number: 315/108
Name: Electric lamp and discharge devices: systems > Confined gas or vapor-type load device with pressure regulating means
Description: Systems wherein the load device is of the type which operates in a confined atmosphere of gas or vapor and includes (1) means for evacuating the gas or vapor, and/or (2) means for admitting gas or vapor into the interior of the enclosure of the load device, the system including means to cause such pressure regulating means to become operative when the gas pressure deviates from normal.

Sub-classes under this class:

Class Number Class Name Patents
315/109 Auxiliary discharge type 5
315/110 Valve controlled 10

Patents under this class:

Patent Number Title Of Patent Date Issued
8692226 Materials and configurations of a field emission device Apr. 8, 2014
8648604 Ionization gauge with operational parameters and geometry designed for high pressure operation Feb. 11, 2014
8575842 Field emission device Nov. 5, 2013
8519643 Lighting fixture and method for operating same Aug. 27, 2013
8373117 Gas delivery system for mass spectrometer reaction and collision cells Feb. 12, 2013
7781743 Charged particle beam system and method for evacuation of the system Aug. 24, 2010
7656165 Method and apparatus for maintaining emission capabilities of hot cathodes in harsh environments Feb. 2, 2010
7429863 Method and apparatus for maintaining emission capabilities of hot cathodes in harsh environments Sep. 30, 2008
7116053 Method for arc attachment stabilization Oct. 3, 2006
6936971 Methods and systems for generating high energy photons or quantum energy Aug. 30, 2005
6736927 Apparatus for increased workpiece throughput May. 18, 2004
6577065 Electric lamp with light source extinguishing arrangement and method of operating same Jun. 10, 2003
6448714 Spark gap switch and switching method thereof Sep. 10, 2002
6433484 Wafer area pressure control Aug. 13, 2002
6172452 Low pressure mercury vapor discharge lamp with heat conductive component Jan. 9, 2001
5909085 Hybrid luminosity control system for a fluorescent lamp Jun. 1, 1999
5767629 Device for starting and/or maintaining a discharge and cold cathode vacuum gauge incorporating such a device Jun. 16, 1998
5637965 Low pressure sodium-mercury lamp yielding substantially white light Jun. 10, 1997
5274305 Low pressure mercury discharge lamp with thermostatic control of mercury vapor pressure Dec. 28, 1993
4990831 Spark gap switch system with condensable dielectric gas Feb. 5, 1991
4983888 Fluorescent lamp device Jan. 8, 1991
4970433 Apparatus and method for tuned unsteady flow purging of high pulse rate spark gaps Nov. 13, 1990
4871944 Compact lighting unit having a convoluted fluorescent lamp with integral mercury-vapor pressure-regulating means, and method of phosphor-coating the convoluted envelope for such a lamp Oct. 3, 1989
4812712 Plasma processing apparatus Mar. 14, 1989
4459513 High pressure sodium vapor lamp having resistance heater means Jul. 10, 1984
4442379 High pressure sodium vapor lamp having resistance heater means Apr. 10, 1984
4284927 Method for breaking direct current and d.c. breaker for effecting same Aug. 18, 1981
4074172 Discharge lamp operating circuit Feb. 14, 1978
4035720 Ion gauge system Jul. 12, 1977
4020378 Integral mercury-vapor pressure regulating means for fluorescent lamp Apr. 26, 1977
4005332 Efficient DC operated fluorescent lamps Jan. 25, 1977
3971968 Ultraviolet radiation source including temperature control and pressure control operating means Jul. 27, 1976

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