Patents by Inventor John Liermann

John Liermann 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: 5611286
    Abstract: An extendible bunk stake mounted on a logging vehicle has an extension member that can be raised and lowered within a support member by an operator. A remotely actuatable motor, such as a source of working fluid and an expansible working chamber can be enabled by an operator to raise and lower the extension member from a safe distance away from a log loading area of the vehicle. Particularly, during periods of inclement weather, a vehicle operator can safely raise and lower the extension member without having to climb on top of the vehicle, greatly reducing any risk of related injury.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: March 18, 1997
    Inventor: John Liermann