US 12,000,764 B2
Planar grinder
Kurt G. Adair, Highland Park, IL (US); Charles E. Shewey, Salem, WI (US); Michael F. Hart, Mundelein, IL (US); Douglas A. Ceckowski, Gurnee, IL (US); and James A. Haberstroh, Vernon Hills, IL (US)
Assigned to Illinois Tool Works Inc., Glenview, IL (US)
Filed by Illinois Tool Works Inc., Glenview, IL (US)
Filed on May 26, 2020, as Appl. No. 16/883,968.
Application 16/883,968 is a continuation of application No. 15/526,096, abandoned, previously published as PCT/US2015/059832, filed on Nov. 10, 2015.
Claims priority of provisional application 62/078,628, filed on Nov. 12, 2014.
Prior Publication US 2020/0284700 A1, Sep. 10, 2020
Int. Cl. G01N 1/28 (2006.01); B24B 7/04 (2006.01); B24B 37/005 (2012.01); B24B 37/04 (2012.01); B24B 37/10 (2012.01); B24B 37/34 (2012.01); B24B 45/00 (2006.01); B24B 49/04 (2006.01); B24B 49/10 (2006.01); B24B 49/16 (2006.01); B24B 51/00 (2006.01); B24B 53/017 (2012.01); B24B 53/02 (2012.01); B24B 55/03 (2006.01); B24B 55/04 (2006.01); G01N 1/32 (2006.01); B24B 37/27 (2012.01)
CPC G01N 1/286 (2013.01) [B24B 7/04 (2013.01); B24B 37/005 (2013.01); B24B 37/04 (2013.01); B24B 37/042 (2013.01); B24B 37/105 (2013.01); B24B 37/34 (2013.01); B24B 45/00 (2013.01); B24B 49/04 (2013.01); B24B 49/10 (2013.01); B24B 49/16 (2013.01); B24B 51/00 (2013.01); B24B 53/017 (2013.01); B24B 53/02 (2013.01); B24B 55/03 (2013.01); B24B 55/04 (2013.01); B24B 55/045 (2013.01); G01N 1/32 (2013.01); B24B 37/27 (2013.01); G01N 2001/2866 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A sample grinder, comprising:
a base having a bowl and a rotatable drive plate to operably support a grinding wheel;
a head configured to support a specimen holder and having a first drive for rotational drive of the specimen holder, the head having a second drive for moving the head and the specimen holder toward and away from the rotatable drive plate, the head having a depending sleeve having inner and outer peripheries, the inner periphery being larger than an outer periphery of the specimen holder; and
a cover disposed over the bowl and the rotatable drive plate, the cover having an opening having an inner periphery greater than the outer periphery of the sleeve, wherein the sleeve traverses through the cover opening when the specimen holder is moved toward the rotatable drive plate.