Patents by Inventor Walter Schoffstall

Walter Schoffstall 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).

  • Reinforced concrete structure, rebar end anchor therefor and method of manufacturing
    Publication number: 20060059841
    Abstract: A method of forming anchors at the ends of rebars includes providing an anchor plate, forming an opening through the anchor plate that is larger than the diameter of the rebar, heating the end of a rebar, inserting it into the anchor plate opening and then forging it to upsize the rebar end into engagement with the wall of the anchor plate opening. Preferably, the wall of the opening through the anchor plate is irregular to enhance the interlock between the upsized rebar end and the anchor plate. The resulting rebar end anchor then finds particular utility in reinforced concrete structure at joint intersections of for example, a beam and column or wall.
    Type: Application
    Filed: August 18, 2004
    Publication date: March 23, 2006
    Applicant: Dayton Superior Corporation of 7777 Washington Village Drive
    Inventors: Clifford Bennett, Walter Schoffstall
  • Concrete anchor
    Patent number: D436674
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: January 23, 2001
    Assignee: Dayton Superior Corporation
    Inventors: Harry B. Lancelot, III, David A. Niday, Sidney E. Francies, III, Walter Schoffstall
  • Concrete anchor including a pentagonal base
    Patent number: D437063
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: January 30, 2001
    Assignee: Dayton Superior Corporation
    Inventors: Harry B. Lancelot, III, David A. Niday, Sidney E. Francies, III, Walter Schoffstall
  • Concrete anchor including an octagonal base
    Patent number: D438649
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: March 6, 2001
    Assignee: Dayton Superior Corporation
    Inventors: Harry B. Lancelot, III, David A. Niday, Sidney E. Francies, III, Walter Schoffstall
  • Concrete anchor including an elliptical base
    Patent number: D438991
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: March 13, 2001
    Assignee: Dayton Superior Corporation
    Inventors: Harry B. Lancelot, III, David A. Niday, Sidney E. Francies, III, Walter Schoffstall