JOHN CHARLES KOOIMA
Pilots at 310 St, Rock Valley, IA

6327970, Dec 11, 2001

Mar 23, 2001

9/815719

John C. Kooima - Rock Valley IA
Phillip G. Kooima - Rock Valley IA

A23L 100, A23L 110, B02B 300, A01F 1218, A01F 1226

99519

A grain husk cracking plate for attaching to a chopping cylinder housing of a harvester in proximity to a shear bar to crack husks of grain moving through the harvester. The grain husk cracking plate includes a base plate adapted for directing grain through the chopping cylinder housing of the harvester. The base plate has a top surface, a bottom surface, a pair of opposite side edges, and a leading edge and a trailing edge extending between the side edges. A plurality of blades are mounted on the top surface of the base plate for cracking the husk of grain traveling through the chopping cylinder housing and striking the blades. Each of the blades has a forward edge directed toward the leading edge of the base plate, a rearward edge directed toward the trailing edge of the base plate, and a pair of side faces. A carbide layer is formed on each of the blades, and the carbide layer is formed on a portion of a first one of the side faces of each of the blades adjacent to the forward edge of the blade.

6234072, May 22, 2001

Mar 6, 2000

9/519753

John C. Kooima - Rock Valley IA
Phillip G. Kooima - Rock Valley IA

A23L 100, A23L 110, B02B 300, A01F 1218, A01F 1226

99519

A grain husk cracking plate for attaching to a chopping cylinder housing of a harvester in proximity to a shear bar to crack husks of grain moving through the harvester. The grain husk cracking plate includes a base plate adapted for directing grain through the chopping cylinder housing of the harvester. A pair of side mounting members are mounted to side edges of a base plate. A plurality of blade members are mounted on the top surface of the base plate. Each of the side mounting members has a pair of mounting structures, and each mounting structure comprises a mounting aperture extending through the side mounting member adjacent to the leading edge or the trailing edge of the base plate. Each of the mounting structures may include a threaded fastener coupled to each of the side mounting members. The plurality of blade members may be positioned on a rear portion of the base plate.

5823449, Oct 20, 1998

Jul 21, 1997

8/897899

John C. Kooima - Rock Valley IA
Philip G. Kooima - Rock Valley IA

B02C 1808, B02C 2102

241 27

A new Agricultural Feed Mixer Blade for providing a mixer blade with improved impact and wear resistance. The inventive device includes a plate having a leading edge with a plurality of teeth arranged in a stepped contiguous relationship therealong, and an elongated cutting element affixed to a face edge of each of the teeth wherein the cutting element is formed of a substance harder than that of the plate such as a cemented carbide. The blade is mountable to the auger of the agricultural feed mixer whereby the leading edge of the plate substantially protrudes beyond a periphery of the auger.

6092750, Jul 25, 2000

May 27, 1999

9/321167

John C. Kooima - Rock Valley IA
Phillip G. Kooima - Rock Valley IA

B02C 1814, B02C 1818

24110176

An agricultural mixer auger cutting blade for providing a durable cutting blade with improved impact and wear resistance. The agricultural mixer auger cutting blade includes a plate having a leading edge, and a back edge. The leading edge of the plate has a plurality of spaced apart cutouts therein forming a row of alternating seats and extents extending along the leading edge of the plate. A plurality of cutting teeth are provided each having an arcuate front cutting edge and a back edge. Each of the seats receives therein a corresponding associated cutting tooth therein such that the front cutting edge of each cutting tooth faces in an outwardly direction from the leading edge of the plate. Each of the cutting teeth is coupled to the plate in the associated seat.