Patents by Inventor William L. Koester

William L. Koester 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: 5025969
    Abstract: A dual actuation staple insertion apparatus, for sequentially inserting a plurality of staples through a selected material, into the ground when actuated by a downward force from an operator upon opposing handles, foot actuation member or both. The apparatus comprises a housing with a bottom, sides and a top forming a chamber therebetween, with open end portions. A tubular member is secured to the housing, and a drive means is slidably received in the tubular member. A biasing member is disposed upon the drive means above the tubing, and acts against a stop to raise the drive means to an upper operating position. A staple advancing means urges the plurality of staples into position beneath the drive means, in preparation for the next staple insertion.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: June 25, 1991
    Inventors: William L. Koester, Daniel L. Koester
  • Patent number: 4826066
    Abstract: A staple insertion apparatus is disclosed for sequentially inserting a plurality of staples through a selected material, into the ground. A housing having a top, bottom, and sides, with first and second open ends, forms a chamber therebetween. The chamber is sized to receive a plurality of staples selected from four to 12 inches in length. The staples are inserted into the chamber from the second open end. A staple advancing member biases the staples towards the first open end. A vertically disposed tubular member is secured to the housing above the first open end of the chamber. An elongated drive member is slidably disposed at least partially within the tubular member. A staple retaining member positions the forewardmost staple beneath the elongated drive member. A foot actuation member is secured to the drive member.
    Type: Grant
    Filed: May 11, 1987
    Date of Patent: May 2, 1989
    Inventors: William L. Koester, Daniel L. Koester