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Ballistic resistant body covering

A ballistic resistant body covering for protecting the torso, groin and neck area from ballistic missiles.

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Class 315/111.21 - Plasma generating


Subclass of Class 315 - Electric lamp and discharge devices: systems
Definition: Subject matter including means for producing a plasma.
No. of patents: 1121
Last issue date: 05/01/2012


                  28    
NumberTitleIssue Date
4498029Microwave generated plasma light source apparatus
A microwave generated plasma light source including a microwave generator, a microwave cavity having a light reflecting member forming at least a portion of the cavity, and a member transparent to light and opaque to microwaves disposed across an opening ...
02/05/1985
4479075Capacitatively coupled plasma device
A capacitatively coupled plasma device has a plasma tube, an electrode positioned near the tube and means to supply a high voltage, high frequency potential such as a radio frequency to the tube to energize a flow of argon or like gas to form a plasma. A ...
10/23/1984
4473736Plasma generator
A plasma generator comprises a metallic tube of small diameter inside which can circulate a gas such as argon at a small flow rate, which is discharged at the front end of the tube. The tube is coupled with an energizing structure which can comprise a fre...
09/25/1984
4459511Maser
A method and apparatus for generating microwave radiation includes a cathode, comprising parallel side wall means, a first end wall and a second end wall parallel to the first end wall, which defines a space. An aperture is defined within each of the end ...
07/10/1984
4458180Plasma electron source for cold-cathode discharge device or the like
A plasma electron source has an apertured cathode, and a housing for defining a cavity behind the aperture. A trigger electrode, in communication with the cavity, is responsive to a short-duration trigger pulse for establishing plasma in the cavity. The p...
07/03/1984
4423303Apparatus for treating powdery materials utilizing microwave plasma
The apparatus includes a microwave generating device and, a waveguide connected with the microwave generating device. A reaction vessel disposed through the waveguide and supplied with a powdery material to be treated with a reaction gas. Pumps are provid...
12/27/1983
4390773Contact electrode for melting and heating furnaces with DC plasma heating
The invention relates to a metallurgical plasma melting furnace used for the melting of metals and alloys wherein at least one auxiliary start-up burner for liquid or gaseous fuels is so arranged adjacent to each plasma burner that the hot combustion gase...
06/28/1983
4386258High frequency magnetic field coupling arc plasma reactor
A plasma reactor is developed on the fact that a high frequency plasma flame is larger in volume and lower in velocity and therefore a reaction material can stay therein for a relatively long period of time. The plasma reactor has a d.c. arc plasma torch ...
05/31/1983
4377773Negative ion source with hollow cathode discharge plasma
A negative ion source of the type where negative ions are formed by bombarding a low-work-function surface with positive ions and neutral particles from a plasma, wherein a highly ionized plasma is injected into an anode space containing the low-work-func...
03/22/1983
4352044Plasma generator
A plasma generator comprises a discharge chamber provided with a means for introducing a plasma-forming medium and associated with a cathode assembly and an anode assembly. The latter includes at least two plasmatrons each having a hole for an inlet for t...
09/28/1982
4344839Process for separating oil from a naturally occurring mixture
A process for separating hydrocarbons from naturally occurring mixtures comprising minerals and inorganic materials originating from rock admixed with oil, for example tar sands and oil shales. The process comprises introducing particles of such mixtures ...
08/17/1982
4341947Glow discharge heating apparatus
Typically, a bottom of a cup-shaped electrode opposes to that of a similar electrode through a predetermined gap and in a mixture of helium and hydrogen. A step-up transformer connected across an AC source through a resistor applies a voltage in excess of...
07/27/1982
4339691Discharge apparatus having hollow cathode
Discharge apparatus comprises a vacuum envelope which is evacuated by a pamping apparatus. In the envelope, an anode and a hollow cathode are disposed and are connected to an arc power supply. A disk having an orfice covers one end of the hollow cathode. ...
07/13/1982
4335297Electron beam processor
An electron beam processor with an energy storage line and matched field emission diode that define a high energy electron beam generator. A transport system positions a specimen to be thermally processed in a processing station. Energy stored on the line...
06/15/1982
4331856Control system and method of controlling ion nitriding apparatus
A control system and method for an apparatus to glow discharge treat (such as ion nitride) a workpiece. The apparatus includes a housing to receive a workpiece and a low pressure atmosphere of ionizable gas (nitrogen and hydrogen for nitriding), and conne...
05/25/1982
4306175Induction plasma system
An induction plasma system includes a plasma chamber, a high frequency electrical coil that surrounds the chamber, and an oscillator for energizing the coil to establish a plasma maintaining condition in the chamber. The oscillator tank circuit includes t...
12/15/1981
4301391Dual discharge plasma device
The first plasma discharge chamber of the dual discharge plasma device contains an electron emitter and a first anode and contains gas at a sufficiently high pressure that the discharge voltage in the first chamber is below the sputtering threshold. The s...
11/17/1981
4297615High current density cathode structure
A lanthanum hexaboride element, typically of cylindrical configuration, is mounted within a high plasma density cathode enclosure. An inlet is provided to supply gas to the cathode enclosure in the vicinity of the lanthanum hexaboride cathode element, and...
10/27/1981
4201579Method for removing photoresist by hydrogen plasma
A method for removing photoresist from a substrate. A substrate to be stripped of photoresist is placed in a metal substrate holder or boat which is subsequently loaded into a plasma reactor. The holder is placed in contact with one electrode of the plasm...
05/06/1980
4177437High power pre-TR switch
A high power pre-TR switch utilizes hot pressed boron nitride to form a vial. The vial contains a halogen gas such as chlorine....
12/04/1979
4147957Plasma jet device and method of operating same
A plasma jet device which comprises first and second anode electrodes spaced apart and positioned such that their axes, if extended, would intersect at an angle, and a third cathode electrode positioned offset from the plane formed by the extended axes of...
04/03/1979
4115184Method of plasma etching
For plasma etching, to obtain high quality, accurate and reproducible results, the temperature of the plasma gas is measured, conveniently as close as possible to the articles to be etched, variations in the temperature from a desired datum being used to ...
09/19/1978
4088926Plasma cleaning device
Apparatus for cleaning contaminated surfaces such as hydro-carbon contaminant films in high vacuum environments including a plasma discharge housing for allowing a plasma to be generated in an environment having a higher pressure than the surface which is...
05/09/1978
4080550Method and apparatus for projecting solids-containing gaseous media into an arc discharge
An improved apparatus for projecting a solids-containing gaseous media into an arc discharge utilizing a cone shaped cathode, with a passage along the conical surface thereof for insertion of gaseous media into the arc discharge, employing a plurality of ...
03/21/1978
4061991Seeded flame microwave power load
A method and device for absorbing microwave energy avoid the expense and bulk of prior art arrangements, and provide greater efficiency, by forming a flame in the path of the microwave and supplying a seeding substance into the flame to produce a plasma f...
12/06/1977
4049940Devices and methods of using HF waves to energize a column of gas enclosed in an insulating casing
A device which generates plasma by energizing a column of gas with a high frequency periodic electric field of a frequency of at least 100MHz. The generating means extends over only a part of the gas column and the power of the energizing field is such th...
09/20/1977
4035604Methods and apparatus for finishing articles
The disclosure of this invention pertains to the method of removing burrs from an electrically conductive article by exposing the article to a plasma flame wherein the parameters of the plasma are so chosen that the plasma becomes concentrated at the burr...
07/12/1977
4023065Method and apparatus for generating and utilizing a compound plasma configuration
A method and apparatus for generating and utilizing a compound plasma configuration is disclosed. The plasma configuration includes a central toroidal plasma with electrical currents surrounded by a generally ellipsoidal mantle of ionized particles or ele...
05/10/1977
4009413Plasma jet device and method of operating same
A plasma jet device which comprises an anode electrode and a cathode electrode to provide an ionized gas column therebetween, the anode and cathode electrodes positioned such that their axes, if extended, would intersect at an angle, the ionized gas chara...
02/22/1977
3997756Method for striking main arc between the electrode of plasmatron and workpiece, and contrivance embodying same
In a method for striking a main arc between the electrode and nozzle of a plasmatron there is initiated with the aid of high-frequency discharge an intermittently-arcing pilot arc whose flame bridges under the influence of a gas fed into the plasmatron th...
12/14/1976
3988566Automatic plasma flame spraying process and apparatus
A plasma flame-spraying apparatus, having a source of primary gas and a source of a secondary plasma gas, is provided with means for insuring that when the secondary gas in passed through the electric arc established in the flame-spraying apparatus, which...
10/26/1976
3949266Circuit means for automatically establishing an arc in a plasma flame spraying gun
An improvement in a plasma flame spraying apparatus, particularly one in which at least two gases form the plasma, which improvement comprises means associated with the plasma gas inlet, said means being time related to an increase in the current through ...
04/06/1976
3931542Method and apparatus for energizing materials in an electric arc
An improved apparatus and method for energizing materials in a free-burning electric arc is provided by radially disposing a plurality of anodes around an extension of the cathode axis. The anodes are inclined at an angle ranging from about 45.degree. to ...
01/06/1976
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