US 12,480,840 B1
Automatic high precision battery material assessment system
Jongwook Mah, Austin, TX (US); Soyeon Choo, Cheongju-si (KR); Donghwan Mah, Austin, TX (US); and Kwangwoo Park, Cheongju-si (KR)
Assigned to Mag IA, Inc., Austin, TX (US)
Filed by MAG IA, INC., Austin, TX (US)
Filed on Jan. 16, 2025, as Appl. No. 19/025,035.
Application 19/025,035 is a continuation of application No. PCT/US2024/050393, filed on Oct. 8, 2024.
Claims priority of provisional application 63/699,570, filed on Sep. 26, 2024.
Claims priority of provisional application 63/683,620, filed on Aug. 15, 2024.
Int. Cl. G01N 1/04 (2006.01); G01N 33/00 (2006.01)
CPC G01N 1/04 (2013.01) [G01N 33/0091 (2024.05)] 28 Claims
OG exemplary drawing
 
1. A magnetic impurity sample collection device comprising:
a movement module comprises a motor unit; and,
a rod extending in a longitudinal axis coupled to the movement module comprises:
a magnetic mass disposed at a distal end of the rod;
a position control bar coupled to the movement module and the magnetic mass; and,
a magnetically permeable sheath encapsulating the magnetic mass and the position control bar, wherein:
the motor unit is configured to selectively translate the magnetic mass along a curvilinear path within the magnetically permeable sheath; and,
the magnetically permeable sheath comprises a variable thickness along the longitudinal axis, such that, at the distal end of the rod corresponding to a first position of the magnetic mass, an effective magnetic field at an exterior surface of the magnetically permeable sheath varies from at least a first strength capable of attracting paramagnetic impurities to a second strength at a second position smaller than the first strength.