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Class 315/108 - CONFINED GAS OR VAPOR-TYPE LOAD DEVICE WITH PRESSURE REGULATING MEANS


Subclass of Class 315 - Electric lamp and discharge devices: systems
Definition: Systems wherein the load device is of the type which operates
No. of patents: 34
Last issue date: 09/30/2008


NumberTitleIssue Date
7429863Method and apparatus for maintaining emission capabilities of hot cathodes in harsh environments
A method and apparatus for operating a multi-hot-cathode ionization gauge is provided to increase the operational lifetime of the ionization gauge in gaseous process environments. In example embodiments, the life of a spare cathode is extended by heating the spare c...
09/30/2008
7320243Methods and apparatus for detection of large leaks in sealed articles
Methods and apparatus are provided for detection of large leaks in scaled articles. Apparatus for leak detection includes a first sealable chamber configured to receive a test piece containing a trace gas, a second sealable chamber, a first valve coupled between the...
01/22/2008
7290439Methods and apparatus for leak detection by the accumulation method
Methods and apparatus are provided for leak detection by the accumulation method. The apparatus includes a sealable chamber (10) configured to receive a test piece (12) that, while in the chamber, contains a trace gas, a trace gas permeable member (...
11/06/2007
7284878Lumen regulating apparatus and process
The present invention is a fluorescent light lumen regulating apparatus. More specifically, in one aspect, the present invention is a fluorescent lighting assembly for mounting at least one fluorescent lamp. In this aspect, the lighting assembly comprises a lamp hou...
10/23/2007
7266991Sensor for helium or hydrogen
The invention relates to a sensor (1) for helium or hydrogen with a vacuum-tight housing (2), wherein a gas consuming cold cathode array (3, 4) is arranged, in addition to a selectively active passage (9) for the gas to be detected. Accor...
09/11/2007
7204127Method and apparatus for large leak testing
Methods and apparatus for large leak testing are provided. The apparatus includes a test line to receive a sample containing a trace gas, a mass spectrometer to detect the trace gas and having an inlet for receiving the trace gas, a first vacuum pump characterized b...
04/17/2007
7141983Cold cathode device and vacuum gauge using same
A cold cathode device (20) includes a grid (24), a cold cathode (21) positioned under the grid, and a shield electrode (26) positioned above and parallel to the grid. A vacuum gauge includes a shell (32), a collector (39), a...
11/28/2006
7116053Method for arc attachment stabilization
A method of stabilizing an arc between electrode tips in a high pressure arc discharge lamp is provided comprising initially creating an arc between the pair of electrodes during a start-up phase of the lamp by supplying power to the lamp for a first period. The met...
10/03/2006
7098667Cold cathode ion gauge
A cold cathode ion gauge is provided that is suitable for use in a high vacuum and in the presence of contaminating gases. By decreasing the discharge current and, more precisely, decreasing the charge current density received by the gauge electrodes, and using cert...
08/29/2006
7061173Amalgam-doped low mercury low-pressure UV irradiator
A UV lamp unit is provided and comprises a lamp in the form of a mercury low pressure amalgam lamp that is provided with at least one amalgam deposit. A cladding tube surrounds the lamp in such a way that an air gap is provided between the lamp and the cladding tube...
06/13/2006
6949887High frequency inductive lamp and power oscillator
An oscillator includes an amplifier having an input and an output, a feedback network connected between the input of the amplifier and the output of the amplifier, the feedback network being configured to provide suitable positive feedback from the output of the amp...
09/27/2005
6936971Methods and systems for generating high energy photons or quantum energy
The invention generates high-energy particles, or quantum energy, from a quantum macro object. The method used comprises: (a) isolating a gaseous substance within a bounded area; (b) energizing the gaseous substance, causing the gaseous substance to transition into ...
08/30/2005
6736927Apparatus for increased workpiece throughput
A system is disclosed for speeding workpiece thoughput in low pressure, high temperature semiconductor processing reactor. The system includes apparatus for loading a workpiece into a chamber at atmospheric pressure, bringing the chamber down to an intermediate pres...
05/18/2004
6577065Electric lamp with light source extinguishing arrangement and method of operating same
An electric lamp is provided which includes a sealed thin-walled outer envelope containing a fill gas having a high thermal conductivity. A lamp capsule is contained within the outer envelope and is in series with an oxidizable fuse also contained within ...
06/10/2003
6448714Spark gap switch and switching method thereof
In a spark gap switch 12 of a pulse generating circuit 2 of a plasma generator T, an intermediate electrode 15, which is not connected to any electrical source, is disposed at a nearly middle position between a first spherical electrode 13 and a second sp...
09/10/2002
6433484Wafer area pressure control
A plasma processing chamber is provided which provides improved wafer area pressure control. The plasma processing chamber is a vacuum chamber with a device connected for generating and sustaining a plasma. Part of this device would be an etchant gas sour...
08/13/2002
6172452Low pressure mercury vapor discharge lamp with heat conductive component
A low pressure mercury vapor discharge lamp comprising a fluorescent tube having an amalgam container containing amalgam to control mercury vapor pressure at a steady lighting, a holder holding both ends of the fluorescent tube, a lighting circuit to ligh...
01/09/2001
5909085Hybrid luminosity control system for a fluorescent lamp
A luminosity control system (10) for a fluorescent lamp (12) that has a glass enclosure (18) and a pair of lead wires (14) at each end of the glass enclosure is provided. A filament (16) is electrically coupled to each pair of lead wires. An amalgam (22) ...
06/01/1999
5767629Device for starting and/or maintaining a discharge and cold cathode vacuum gauge incorporating such a device
A device for starting and maintaining a discharge which is placed within an enclosure. The enclosure contains a discharge zone confined by an electromagnetic field. The device has a microtip electron source located in the vicinity of the discharge zone. T...
06/16/1998
5637965Low pressure sodium-mercury lamp yielding substantially white light
Low pressure sodium lamp color output is shifted from yellow to a fuller spectral range of visible light (white) by effective simultaneous excitation of sodium and a mercury additive. This is made possible principally by controlling the vapor constituents...
06/10/1997
5274305Low pressure mercury discharge lamp with thermostatic control of mercury vapor pressure
The mercury vapor pressure in a low pressure mercury discharge lamp is thermostatically controlled. A low pressure mercury discharge lamp includes electrodes and a source of mercury vapor sealed in a lamp envelope. A heater and a thermal switching device ...
12/28/1993
4990831Spark gap switch system with condensable dielectric gas
A spark gap switch system is disclosed which is capable of operating at a high pulse rate comprising an insulated switch housing having a purging gas entrance port and a gas exit port, a pair of spaced apart electrodes each having one end thereof within t...
02/05/1991
4983888Fluorescent lamp device
In a fluorescent lamp device, a discharge tube is made by arranging electrodes at the ends of a glass tube, sealing mercury and a rare gas into the glass tube and coating the inner surface of the glass tube with a phosphor, and an amalgam forming material...
01/08/1991
4970433Apparatus and method for tuned unsteady flow purging of high pulse rate spark gaps
A spark gap switch apparatus is disclosed which is capable of operating at a high pulse rate which comprises an insulated housing; a pair of spaced apart electrodes each having one end thereof within a first bore formed in the housing and defining a spark...
11/13/1990
4871944Compact 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
A fluorescent lamp having a multi-U-bent tubular envelope of convoluted configuration is combined with circuit means, a translucent protective cover and a base module to provide an efficient lamp unit of high brightness and long life that is compact enoug...
10/03/1989
4812712Plasma processing apparatus
A plasma processing apparatus wherein a means is provided to apply the proper negative DC voltage through a filter circuit to an electrode for generating the low-temperature plasma through the feed of the high-frequency power. When the high-frequency powe...
03/14/1989
4459513High pressure sodium vapor lamp having resistance heater means
An improved high pressure sodium vapor lamp is described having resistance heater means contained within a tubular light-transmitting ceramic envelope that further contains a reservoir of sodium-mercury amalgam in excess of the quantity vaporized during l...
07/10/1984
4442379High pressure sodium vapor lamp having resistance heater means
An improved high pressure sodium vapor lamp is described having resistance heater means contained within a tubular light-transmitting ceramic envelope that further contains a reservoir of sodium-mercury amalgam in excess of the quantity vaporized during l...
04/10/1984
4284927Method for breaking direct current and d.c. breaker for effecting same
A method for breaking direct current, whereby an initial gas pressure, corresponding to the working conditions of a stationary current channel, is set in a gas discharge device, whereafter direct current is passed through the gas discharge device, and the...
08/18/1981
4074172Discharge lamp operating circuit
The invention relates to a device for operating a low-pressure sodium vapor discharge lamp without a stabilizing ballast. The lamp is provided with a discharge tube having first and second main electrodes opposing a third main electrode. An automatically opera...
02/14/1978
4035720Ion gauge system
In the ion gauge system disclosed herein, the ion current obtained from an ion gauge tube is directly converted to a signal having a frequency proportional to the ion current so that a digital measurement of vacuum may be obtained. The ion current charges...
07/12/1977
4020378Integral mercury-vapor pressure regulating means for fluorescent lamp
The mercury-vapor pressure within a fluorescent lamp is controlled by a metal (indium or an alloy of indium and tin, for example) that wets glass, combines with the mercury within the lamp to form an amalgam and is divided into segments which are fused di...
04/26/1977
4005332Efficient DC operated fluorescent lamps
A technique is disclosed herein for the enhancement of efficiency, and uniformity of light emission from a DC-operated fluorescent lamp. It involves the correlation of mercury vapor pressure within the lamp (which is dependent upon the temperature of liqu...
01/25/1977
3971968Ultraviolet radiation source including temperature control and pressure control operating means
Apparatus for generating ultraviolet radiation of high spectral radiance whereby the radiation is produced in a discharge tube having a thermoemissive cathode and a discharge space and filled with mercury/argon by means of a wall-stabilized direct-current...
07/27/1976
 
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