US 12,434,251 B1
Electrostatic filtration arrangement
Chris Salvino, Scottsdale, AZ (US); Drew F DeJarnette, San Diego, CA (US); Paul A Beatty, Fort Collins, CO (US); and Andrew Dummer, Chapel Hill, NC (US)
Assigned to LUNAR HELIUM-3 MINING, LLC, Scottsdale, AZ (US)
Filed by LUNAR HELIUM-3 MINING, LLC, Scottsdale, AZ (US)
Filed on May 19, 2025, as Appl. No. 19/212,545.
Application 19/212,545 is a continuation in part of application No. 19/016,762, filed on Jan. 10, 2025.
Application 19/016,762 is a continuation in part of application No. 18/894,605, filed on Sep. 24, 2024, granted, now 12,226,735, issued on Feb. 18, 2025.
Application 18/894,605 is a continuation in part of application No. 18/766,818, filed on Jul. 9, 2024, granted, now 12,186,699, issued on Jan. 7, 2025.
Int. Cl. B03C 3/41 (2006.01); B03C 3/019 (2006.01); B03C 3/08 (2006.01); B03C 3/47 (2006.01); B03C 3/66 (2006.01); E21C 51/00 (2006.01)
CPC B03C 3/41 (2013.01) [B03C 3/019 (2013.01); B03C 3/08 (2013.01); B03C 3/47 (2013.01); B03C 3/66 (2013.01); B03C 2201/04 (2013.01); E21C 51/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for mitigating particle ingress in a gas segregation region, the apparatus comprising:
a particle intake chamber having an inlet region in communication with the gas segregation region;
at least one electron emitter bar disposed within the chamber, the at least one electron emitter bar comprising tapering sidewalls that terminate at an apex;
a power source electrically coupled to the at least one electron emitter bar and configured to apply a voltage sufficient to cause a curtain of electrons to be emitted from the apex that negatively charge dust particles; and
also coupled to the power source are a plurality of paired particle retention surfaces disposed between the at least one electron emitter bar and the gas segregation region, the particle retention surfaces configured to receive and retain the negatively charged dust particles when a potential voltage difference is applied via the power supply to each of the paired particle retention surfaces.