Patents by Inventor Gregg L. Tvetene

Gregg L. Tvetene 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).

  • Sod harvester with flap control device
    Patent number: 10039221
    Abstract: A sod harvester with a start gate, a first switch that is configured to interact with a first sensor, a second switch that is configured to interact with a second sensor, an inclined conveyor; a rollup conveyor positioned above an end of the inclined conveyor, and a controller including controller software that is configured to cause the rollup conveyor to start upon activation of the second sensor, a timer to begin counting time upon activation of the first sensor, and the rollup conveyor to stop upon the counting of a certain amount of time by the timer. The first switch is positioned between the start gate and the second switch, and the second switch is positioned between the first switch and the rollup conveyor. The inclined conveyor is configured to eject a sod roll onto a platform upon cessation of rotation by the rollup conveyor.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: August 7, 2018
    Inventors: Gregg L. Tvetene, Timothy Boelter, Jake Bies
  • SOD HARVESTER WITH FLAP CONTROL DEVICE
    Publication number: 20170049036
    Abstract: A sod harvester with a start gate, a first switch that is configured to interact with a first sensor, a second switch that is configured to interact with a second sensor, an inclined conveyor; a rollup conveyor positioned above an end of the inclined conveyor, and a controller including controller software that is configured to cause the rollup conveyor to start upon activation of the second sensor, a timer to begin counting time upon activation of the first sensor, and the rollup conveyor to stop upon the counting of a certain amount of time by the timer. The first switch is positioned between the start gate and the second switch, and the second switch is positioned between the first switch and the rollup conveyor. The inclined conveyor is configured to eject a sod roll onto a platform upon cessation of rotation by the rollup conveyor.
    Type: Application
    Filed: September 8, 2016
    Publication date: February 23, 2017
    Inventors: Gregg L. Tvetene, Timothy Boelter, Jake Bies