Patents by Inventor C. Marrs Gist

C. Marrs Gist 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: 6889489
    Abstract: A self propelled, steerable, vertically adjustable, hydraulicly driven, ganged mowing machine for trimming nursery products. The machine generally includes a horizontal platform that supports a staggered array of mower decks. Each mower deck is driven by a hydraulic motor operatively connected to a mower blade for trimming the nursery products. The platform is slideably connected to right and left vertically stationary frames such that the platform is vertically adjustable with respect to the ground, via a hydraulic cylinder interconnecting the platform and each frame. Each vertical frame includes an independently controllable hydraulically driven traction drive motor operably connected to a drive wheel for propelling the machine. The mowing machine also includes a prime mover. The prime mover drives a number of hydraulic pumps. At least one of the hydraulic pumps drives the hydraulic motors which drive the mower blades.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: May 10, 2005
    Assignee: Monrovia Nursery Company
    Inventors: Willis Fackrell, Bill Valov, C. Marrs Gist, Kevin Kling, Roger Rivers
  • Publication number: 20030196422
    Abstract: A self propelled, steerable, vertically adjustable, hydraulicly driven, ganged mowing machine for trimming nursery products. The machine generally includes a horizontal platform that supports a staggered array of mower decks. Each mower deck is driven by a hydraulic motor operatively connected to a mower blade for trimming the nursery products. The platform is slideably connected to right and left vertically stationary frames such that the platform is vertically adjustable with respect to the ground, via a hydraulic cylinder interconnecting the platform and each frame. Each vertical frame includes an independently controllable hydraulically driven traction drive motor operably connected to a drive wheel for propelling the machine. The mowing machine also includes a prime mover. The prime mover drives a number of hydraulic pumps. At least one of the hydraulic pumps drives the hydraulic motors which drive the mower blades.
    Type: Application
    Filed: May 23, 2003
    Publication date: October 23, 2003
    Applicant: Monrovia Nursery Company
    Inventors: Willis Fackrell, Bill Valov, C. Marrs Gist, Kevin Kling, Roger Rivers
  • Patent number: 6609356
    Abstract: A self propelled, steerable, vertically adjustable, hydraulicly driven, ganged mowing machine for trimming nursery products. The machine generally includes a horizontal platform that supports a staggered array of mower decks. Each mower deck is driven by a hydraulic motor operatively connected to a mower blade for trimming the nursery products. The platform is slideably connected to right and left vertically stationary frames such that the platform is vertically adjustable with respect to the ground, via a hydraulic cylinder interconnecting the platform and each frame. Each vertical frame includes an independently controllable hydraulically driven traction drive motor operably connected to a drive wheel for propelling the machine. The mowing machine also includes a prime mover. The prime mover drives a number of hydraulic pumps. At least one of the hydraulic pumps drives the hydraulic motors which drive the mower blades.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: August 26, 2003
    Assignee: Monrovia Nursery Company
    Inventors: Willis Fackrell, Bill Valov, C. Marrs Gist, Kevin Kling, Roger Rivers
  • Publication number: 20020157365
    Abstract: The invention is a self propelled, steerable, vertically adjustable, hydraulicly driven, ganged mowing machine for cutting or trimming nursery products, such as shrubs, bushes, tall plants, and the like. The machine generally includes a horizontal platform where the platform supports a staggered array of mower decks and the machine's power and control devices. Each mower deck is driven by a hydraulic motor operatively connected to a mower blade for cutting or trimming the nursery products. The machine includes right and left vertically stationary frames in which the platform is slidably connected to each frame and is adjustable vertically with respect to the ground, via a hydraulic cylinder interconnecting the platform and each frame. Each vertical frame includes an independently controllable hydraulically driven traction drive motor operably connected to a drive wheel for propelling the machine. The mowing machines power and control devices generally include a prime mover.
    Type: Application
    Filed: April 30, 2001
    Publication date: October 31, 2002
    Inventors: Willis Fackrell, Bill Valov, C. Marrs Gist, Kevin Kling, Roger Rivers