Patents by Inventor Merlin L. Esau

Merlin L. Esau 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: 6347503
    Abstract: A mower includes a propelling vehicle and a mower deck having at least one mower blade and positioned adjacent the front end of the vehicle. A lift shaft is rotatably supported by the mower deck and extends transversely across the deck. At least one hitch arm is fixedly coupled on one end to the lift shaft and attached to the front end of the propelling vehicle on its other end. A rotatable joint is located adjacent the lift shaft and allows the deck to be rotated from a horizontal position to a raised position to allow access to the mower blade.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: February 19, 2002
    Assignee: Moridge Manufacturing, Inc.
    Inventors: Merlin L. Esau, Leroy F. Koehn
  • Patent number: 5528886
    Abstract: A hitching arrangement for attaching a mower deck to a propelling vehicle has a lift shaft rotatably supported by the mower deck and extending transversely across the deck. At least one hitch arm is fixedly secured on one end to the lift shaft. The hitch arm has a hook located on its other end with a downwardly facing opening adopted for engagement with a generally horizontally disposed attaching member on the propelling vehicle. A cutting height adjustment mechanism is operably coupled to the lift shaft and adjusts the cutting height of the mower. The adjustment mechanism has a first position corresponding to an elevated cutting height of the mower deck and a second position corresponding to a lowered cutting height of the deck. A deck stand is provided which is releasably attached to the deck.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: June 25, 1996
    Assignee: Moridge Manufacturing, Inc.
    Inventor: Merlin L. Esau
  • Patent number: 5465564
    Abstract: A mower deck is convertible between a discharge configuration wherein grass clippings are discharged from the deck and a mulching configuration wherein grass clippings are mulched within the deck. The deck has a housing with a discharge port for discharging grass clippings from the housing when the deck is in the discharge configuration. Spindles are rotatably mounted to the housing and coupled to a drive mechanism. A cutting blade is attached to each spindle. A removable shroud can be attached to and removed from the housing. The mulching configuration of the deck corresponds to when the removable shroud is attached to the housing and the discharge configuration of the deck corresponds to when the removable shroud is detached from the housing. A fixed shroud is attached to the housing and partially enshrouds the cutting path of the cutting blade.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: November 14, 1995
    Assignee: Moridge Manufacturing, Inc.
    Inventors: Leroy F. Koehn, Merlin L. Esau