US 12,487,153 B2
Device for removal of excess material from a test sample
Reginald Lee, West Chester, PA (US); Peter Foster, Avondale, PA (US); Alina Latshaw, Glen Mills, PA (US); and Sally Childears, Dover, DE (US)
Assigned to TA Instruments-Waters LLC, New Castle, DE (US)
Filed by TA Instruments-Waters LLC, New Castle, DE (US)
Filed on Dec. 12, 2022, as Appl. No. 18/079,314.
Claims priority of provisional application 63/289,515, filed on Dec. 14, 2021.
Prior Publication US 2023/0184638 A1, Jun. 15, 2023
Int. Cl. G01N 1/28 (2006.01); B26D 1/15 (2006.01)
CPC G01N 1/286 (2013.01) [B26D 1/15 (2013.01); G01N 2001/2873 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A device for removal of excess material from a test sample, comprising:
a test geometry comprising a lower geometry and an upper geometry each having a circular outer edge and being centered on an axis of rotation, wherein at least one of the lower and upper geometries is configured to rotate about the axis of rotation;
a trimming ring having a sidewall, a ring axis coincident with the axis of rotation and at least one cutting edge disposed along at least a portion of a circumference of the trimming ring at a diameter that is at least as great as a diameter of at least one of the lower geometry and the upper geometry, wherein the sidewall includes a plurality of apertures and wherein at least a portion of the sidewall that surrounds each aperture includes a cutting edge; and
an actuator coupled to the trimming ring and configured to translate the trimming ring in a direction parallel to the axis of rotation.