Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Louis J. Barberi0
Keith W. Kilham0
Steven J. Barberi0
Gregory J. Gruzdowich0
Date of Patent
January 16, 2024
0Patent Application Number
184730850
Date Filed
September 22, 2023
0Patent Primary Examiner
CPC Code
Patent abstract
Devices and methods for improved separation of small particles from other stock. The device includes a sifting tray assembly and means for vibrating the screen of the sifting tray assembly for separating components and a cryogenic fluid source and injection system for freezing the small parts to the point where they are solid enough to pass through the screen without adhering to the screen. The method entails use of the system to separate small particles in sifting trays while spraying the stock with a cryogen such as liquid nitrogen.
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