Patents by Inventor Charles C. Shivvers

Charles C. Shivvers 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: 6988351
    Abstract: A self-propelled mower includes a frame and a mower housing mounted underbelly relative to the frame by a mounting assembly. The mounting assembly allows the mower housing to be disconnected from the frame and swung near the front of the housing from a mowing configuration to an access configuration as a front end of the mower is raised. In one embodiment the frame includes a yoke that receives a nose of the housing, as the front of the mower is raised. A mechanized drive is utilized in certain embodiments to swing the mower deck to the access configuration.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: January 24, 2006
    Assignee: Shivvers Group, Inc.
    Inventors: Scott A. Schick, Charles C. Shivvers, Steve D. Shivvers
  • Publication number: 20020194826
    Abstract: A self-propelled mower includes a frame and a mower housing mounted underbelly relative to the frame by a mounting assembly. The mounting assembly allows the mower housing to be disconnected from the frame and swung near the front of the housing from a mowing configuration to an access configuration as a front end of the mower is raised. In one embodiment the frame includes a yoke that receives a nose of the housing, as the front of the mower is raised. A mechanized drive is utilized in certain embodiments to swing the mower deck to the access configuration.
    Type: Application
    Filed: August 19, 2002
    Publication date: December 26, 2002
    Applicant: Shivvers Group, Inc.
    Inventors: Scott A. Schick, Charles C. Shivvers, Steve D. Shivvers
  • Patent number: 5092819
    Abstract: A method and an apparatus for determining the moisture content of grain to be harvested comprising the steps of reaping grain from grain bearing plants, threshing grain from the grain bearing plant, collecting the threshed grain in a hopper, and sensing the moisture content of the threshed grain prior to collection of the grain in the hopper.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: March 3, 1992
    Inventors: Michael J. Schroeder, Charles C. Shivvers, Steven D. Shivvers, Carl C. Shivvers, Ronald L. McCaslen, Robert D. Engle
  • Patent number: 4896506
    Abstract: A vehicle includes at least a pair of drive wheels, each wheel being independently controlled by an integrated transmission, each transmission being powered by an input shaft operably driven by a common engine. Each transmission is of a type wherein a pump head with pistons is driven by the input shaft and conveys output fluid to a motor head which is driven thereby and rotates an output shaft. Pump head output is controlled by an operator variable swash plate. The transmission integrally includes a dampening mechanism for the swash plate, a positive neutral structure for the swash plate, an automatic parking brake with override mechanism to allow setting of the brake or release of the brake by the operator, a porting block communicating fluid flow between the pump heads and providing for overpressure relief, and a charge pump for communicating makeup fluid to the pump head and to circulate the fluid so as to cool same.
    Type: Grant
    Filed: November 18, 1987
    Date of Patent: January 30, 1990
    Assignee: Shivvers, Inc.
    Inventors: Charles C. Shivvers, Steven D. Shivvers, Richard A. Arnold, Edward A. Ryks
  • Patent number: 4845949
    Abstract: A vehicle includes at least a pair of drive wheels, each wheel being independently controlled by an integrated transmission, each transmission being powered by an input shaft operably driven by a common engine. Each transmission is of a type wherein a pump head with pistons is driven by the input shaft and conveys output fluid to a motor head which is driven thereby and rotates and output shaft. Pump head output is controlled by an operator variable swash plate. The transmission integrally includes a dampening mechanism for the swash plate, a positive neutral structure for the swash plate, an automatic parking brake with override mechanism to allow setting of the brake or release of the brake by the operator, a porting block communicating fluid flow between the pump heads and providing for overpressure relief, and a charge pump for communicating makeup fluid to the pump head and to circulate the fluid so as to cool same.
    Type: Grant
    Filed: November 18, 1987
    Date of Patent: July 11, 1989
    Assignee: Shivvers, Inc.
    Inventors: Charles C. Shivvers, Steven D. Shivvers, Richard A. Arnold, Edward A. Ryks
  • Patent number: 4843817
    Abstract: A vehicle includes at least a pair of drive wheels, each wheel being independently controlled by an integrated transmission, each transmission being powered by an input shaft operably driven by a common engine. Each transmission is of a type wherein a pump head with pistons is driven by the input shaft and conveys output fluid to a motor head which is driven thereby and rotates an output shaft. Pump head output is controlled by an operator variable swash plate. The transmission integrally includes a dampening mechanism for the swash plate, a positive neutral structure for the swash plate, an automatic parking brake with override mechanism to allow setting of the brake or release of the brake by the operator, a porting block communicating fluid flow between the pump heads and providing for overpressure relief, and a charge pump for communicating makeup fluid to the pump head and to circulate the fluid so as to cool same.
    Type: Grant
    Filed: November 18, 1987
    Date of Patent: July 4, 1989
    Assignee: Shivvers, Inc.
    Inventors: Charles C. Shivvers, Steven D. Shivvers, Richard A. Arnold, Edward A. Ryks
  • Patent number: 4063654
    Abstract: The sweep auger apparatus is radially mounted within a circular bin for storing granular free flowing material and is horizontally rotatable across the bin floor about a vertical axis located centrally of the bin to remove from the bin floor, during each horizontal rotation thereof, a uniform depth of material. The sweep auger is of a constant diameter and uniform pitch and is positioned within a housing structure of a generally right angle shape in transverse cross section that has an upright leg located adjacent the rear side of the auger and a generally horizontal leg arranged adjacent the top side of the auger and projected forwardly from the front side of the auger. The depth of material to be removed is dependent on the angle of repose or flow of the material relative to a horizontal plane.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: December 20, 1977
    Inventor: Charles C. Shivvers
  • Patent number: 4026426
    Abstract: A sweep auger, mounted for rotation in a horizontal plane within a circular storage bin is comprised of two flights. The first flight has a constant diameter and a constant pitch. The second flight has the same constant diameter but a variable pitch so as to form a composite flight having sections of variable thickness longitudinally of the sweep auger. The sweep auger is capable of removing a uniform layer of grain and beans and the like from the bin floor during each complete revolution across the floor of the storage bin, and is adapted to handle a variety of material particle sizes.
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: May 31, 1977
    Inventor: Charles C. Shivvers
  • Patent number: D246388
    Type: Grant
    Filed: August 12, 1976
    Date of Patent: November 15, 1977
    Inventor: Charles C. Shivvers