Patents by Inventor Timothy A. Esser

Timothy A. Esser 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).

  • Removable battery tray system for an electrically powered bunker rake
    Patent number: 5983612
    Abstract: A removable battery tray for an electric bunker rake. The battery tray fits on the frame of the bunker rake during operation, and can be easily removed by a hoist or other method so that the bunker rake can continue to operate with another charged set of batteries. The battery tray also has a central power connector that is used for charging and is the only electrical disconnect required when changing the battery tray.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: November 16, 1999
    Assignee: Textron, Inc.
    Inventors: Eric D. Bauswell, Timothy A. Esser
  • Removable battery tray system for an electrically powered mower
    Patent number: 5934053
    Abstract: A removable battery tray for an electric mower is disclosed. The battery tray fits over the frame of the mower during operation, and can be removed by a hoist or other method in order for the electric mower to continue to operate with another charged set of batteries. The battery tray also has a central power plug that is used for charging and is the only electrical disconnect required when changing the battery tray.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: August 10, 1999
    Inventors: Alan R. Fillman, Timothy A. Esser