Patents by Inventor Linda M. Stoffle

Linda M. Stoffle 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).

  • Clamps for making corrugated panel free standing play structures
    Patent number: 5487690
    Abstract: An assortment of clamps, for use by a child to clamp panels of scrap corrugated panel, to make free standing play structures. The clamps are extrusions of high density polysterene, incorporating flexible legs, that form a U-shaped panel receiving section. Each clamp has a panel insertion guide, an elastic deformation gripping section, and a crush deformation gripping section. The clamps are designed to be easy for a child to insert a corrugated panel.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: January 30, 1996
    Inventors: Thomas N. Stoffle, Linda M. Stoffle