Patents by Inventor Carl D. Parker

Carl D. Parker 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: 8465105
    Abstract: A work vehicle including an engine and a transmission operatively engaging the engine. The transmission has at least one input shaft and at least one output shaft, wherein a ratio of a rotational speed of the output shaft with respect to a rotational speed of the input shaft may be changed by said transmission. The work vehicle further includes a cutter drum operatively engaging said transmission and a controller, wherein the controller selects the transmission ratio based on an input of a user of the work vehicle.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: June 18, 2013
    Assignee: CMI Terex Corporation
    Inventors: Carl D. Parker, E. Leroy Henderson
  • Publication number: 20080173740
    Abstract: A work vehicle including an engine and a transmission operatively engaging the engine. The transmission has at least one input shaft and at least one output shaft, wherein a ratio of a rotational speed of the output shaft with respect to a rotational speed of the input shaft may be changed by said transmission. The work vehicle further includes a cutter drum operatively engaging said transmission and a controller, wherein the controller selects the transmission ratio based on an input of a user of the work vehicle.
    Type: Application
    Filed: January 18, 2007
    Publication date: July 24, 2008
    Inventors: Carl D. Parker, E. Leroy Henderson
  • Patent number: 4325580
    Abstract: A planer apparatus for cutting a selected upper portion of a roadway surface to coincide with a preselected reference plane, comprising a main frame drivingly supported by a drive assembly, the main frame carrying a planing assembly comprising a rotating cutter drum assembly and a cutter drive assembly. The cutter drive assembly comprises a pair of cutter power assemblies which are disposed on one side of the main frame and which are connected to a rotating hub member. The rotating hub member is carried by load-bearing hub support surfaces, with the rotating hub member rotatably driving the cutter drum assembly.The planer apparatus further comprises an upper material lifting conveyor for elevating and moving roadway material disengaged from the roadway by the planing assembly. The upper material lifting conveyor features an upper conveyor cover connecting the side members of the upper conveyor frame, with the conveyor motor assembly mounted on the upper conveyor frame between the side members.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: April 20, 1982
    Assignee: CMI Corporation
    Inventors: George W. Swisher, Jr., Donald W. Smith, Carl D. Parker