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US Patent 12078154 Microplasma-based heaterless, insertless cathode

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
120781541
Patent Inventor Names
Ryan Patrick Gott1
Kunning Gabriel Xu1
Date of Patent
September 3, 2024
1
Patent Application Number
161532971
Date Filed
October 5, 2018
1
Patent Citations
‌
US Patent 11042027 Non thermal plasma surface cleaner and method of use
1
‌
US Patent 10672602 Cesium primary ion source for secondary ion mass spectrometer
1
‌
US Patent 10919649 Low-power hall thruster with an internally mounted low-current hollow cathode
1
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US Patent 8928230 Cold plasma treatment devices and associated methods
1
‌
US Patent 8994271 Device for generating a non-thermal atmospheric pressure plasma
1
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US Patent 9006976 Cold plasma treatment devices and associated methods
1
‌
US Patent 9384947 Cold plasma treatment devices and associated methods
1
‌
US Patent 9406485 Argon and helium plasma apparatus and methods
1
...
Patent Primary Examiner
‌
Arun Goyal
1
CPC Code
‌
B64G 1/405
1
‌
F03H 1/0025
1
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F03H 1/0087
1
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H01J 1/025
1
Patent abstract

The present disclosure generally pertains to devices and methods for generating thrust in vehicles, for instance in space applications. A heaterless, insertless hollow cathode utilizes AC and pulsed DC electric fields to ionize the propellant gas and generate a plasma plume. The cathode uses an argon microplasma generated in a quartz tube with a tungsten filament and brass ion collector. Free electrons are then drawn from the plasma plume and supplied to a thruster engine.

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