Patents by Inventor Walter D. Keefe

Walter D. Keefe 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).

  • Publication number: 20030015578
    Abstract: In accordance with the aspects of the present invention, an improved container locking arrangement for a single piece blank and container is disclosed. The present invention includes a blank or a container including a bottom panel with first and second bottom sidewall panels, front and rear opposing wall panels, and first and second box corner locking constructions. Engagement of the corner locking constructions hingedly controls the relative position of the bottom sidewall panels. The corner locking constructions form first and second angled sidewall panels. Sidewall panel tabs disposed on an edge of the angled sidewall panels engage slots on the front wall panel to lock the first and second sidewall panels and the front wall panel in an assembled position. A top panel is hingedly configured to cover the bottom panel, thereby closing the container. First and second top panel flaps engage the first and second corner locking constructions to lock the top panel relative to the bottom panel.
    Type: Application
    Filed: June 25, 2002
    Publication date: January 23, 2003
    Inventors: Walter D. Keefe, Nicholas A. Philips
  • Patent number: 5702054
    Abstract: A paperboard container is formed from a single piece with appropriate cuts, score lines and slots to become, when in the erected condition, a food container for holding food items such as pizzas. Top and bottom panels are provided as are appropriate side panels. Front angled corners are constructed where triangular panels and upstanding tabs create a receiving pocket for accepting the locking flap hinged to the top closure panel.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: December 30, 1997
    Assignee: Weyerhaeuser Company
    Inventors: Nicholas A. Philips, Walter D. Keefe, Jr.
  • Patent number: 4809908
    Abstract: A container that includes a tray-type body with an integral interlocking cover, wherein the body front and side wall panels are interconnected at the front corners of the container by gussets that present openings for receiving portions of the cover side wall panels to lock the body and cover in a closed position.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: March 7, 1989
    Assignee: Container Corporation of America
    Inventors: Walter D. Keefe, John A. Pomplin