Patents by Inventor Casey A. Leis

Casey A. Leis 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: 11259463
    Abstract: A slope mower includes a mower body, drive wheels, left and right mower decks and left and right support wheels mounted on support arms pivotally mounted to the mower body with hydraulic actuators acting on the left and right support arms to maintain the mower body vertical. An inclinometer measures the tilt angle of the mower body and a controller reads the angle and controls a leveling valve to supply hydraulic fluid from a supply line to the leveling actuator toward which the inclinometer indicates the mower body is leaning to move the mower body back to vertical. The system can be programmed to actuate a leveling actuator only when the detected tilt angle exceeds a minimum angle. Lockout valves can be actuated by the controller to block the flow of hydraulic fluid to or from both actuators if a maximum allowed tilt angle is exceeded.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: March 1, 2022
    Assignee: Harper Industries, Inc.
    Inventors: Casey A. Leis, Cole J. Howard, Mark Kiner
  • Patent number: 11246272
    Abstract: A turf sweeper includes a hopper mounted on a frame. A debris loading duct mounted on the frame includes an intake opening supported in closely spaced relation above the ground and a discharge opening at a discharge end communicating with a hopper inlet. A broom is rotatably mounted within an intake section of the debris loading duct proximate and across the intake opening. A paddle rotor, having a plurality of paddles outwardly projecting paddles is rotatably mounted within and across a transfer section of the debris loading duct with a path of rotation of tips of the paddles extending in closely spaced relation to a path of rotation of tips of the pick-up members of the pick-up head. A return air duct flow connects a return air outlet to the hopper with a return air opening through the transfer section of the debris loading duct.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: February 15, 2022
    Assignee: Harper Industries, Inc.
    Inventor: Casey A. Leis
  • Publication number: 20200245570
    Abstract: A turf sweeper includes a hopper mounted on a frame. A debris loading duct mounted on the frame includes an intake opening supported in closely spaced relation above the ground and a discharge opening at a discharge end communicating with a hopper inlet. A broom is rotatably mounted within an intake section of the debris loading duct proximate and across the intake opening. A paddle rotor, having a plurality of paddles outwardly projecting paddles is rotatably mounted within and across a transfer section of the debris loading duct with a path of rotation of tips of the paddles extending in closely spaced relation to a path of rotation of tips of the pick-up members of the pick-up head. A return air duct flow connects a return air outlet to the hopper with a return air opening through the transfer section of the debris loading duct.
    Type: Application
    Filed: January 9, 2020
    Publication date: August 6, 2020
    Applicant: Harper Industries, Inc.
    Inventor: Casey A. Leis