US 12,226,871 B2
Trocar needle grinder
John R. Memmelaar, Jr., Midland Park, NJ (US); and Todd R. Morris, New Windsor, NY (US)
Assigned to Royal Master Grinders, Inc., Oakland, NJ (US)
Filed by Royal Master Grinders, Inc., Oakland, NJ (US)
Filed on Feb. 5, 2021, as Appl. No. 17/168,742.
Claims priority of provisional application 62/970,888, filed on Feb. 6, 2020.
Prior Publication US 2021/0245325 A1, Aug. 12, 2021
Int. Cl. B24B 41/06 (2012.01); B24B 9/00 (2006.01); B24B 19/16 (2006.01); B24B 41/00 (2006.01)
CPC B24B 41/061 (2013.01) [B24B 9/007 (2013.01); B24B 19/16 (2013.01); B24B 41/06 (2013.01); B24B 41/00 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A fixture for holding a plurality of workpieces, the fixture comprising:
a frame;
a plurality of holders, each holder having a substantially circular opening defining a variable diameter configured to receive and secure a workpiece, each holder being rotationally coupled to the frame, the variable diameter configured to be increased or decreased to receive and secure the workpiece;
an actuator operatively coupled to the plurality of holders to drive rotation of the holders with respect to the frame; and
a bracket configured to mount the frame to a manipulator, wherein the manipulator is configured to move the fixture,
wherein each of the holders are coupled to a respective holder gear, and wherein the actuator includes a shaft having a single shaft gear, wherein the shaft gear is operatively coupled to the holder gears to drive rotation of the holders with respect to the frame.