Patents by Inventor John C. Kooima

John C. Kooima has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6327970
    Abstract: 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.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: December 11, 2001
    Inventors: John C. Kooima, Phillip G. Kooima
  • Patent number: 6234072
    Abstract: 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.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: May 22, 2001
    Inventors: John C. Kooima, Phillip G. Kooima
  • Patent number: 6092750
    Abstract: 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.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: July 25, 2000
    Inventors: John C. Kooima, Phillip G. Kooima
  • Patent number: 5823449
    Abstract: 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.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: October 20, 1998
    Inventors: John C. Kooima, Philip G. Kooima