Patents by Inventor L. Cullen Underwood

L. Cullen Underwood 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).

  • Molded aerosol can cap
    Patent number: 6769563
    Abstract: A one-piece aerosol can cap formed of molded plastic has a top wall with an outside edge. A skirt depends from the outside edge of the top wall to a lower perimeter edge. A plurality of arcuate segments depends from the top wall inside the skirt. Each arcuate segment has an inwardly protruding detent. Each arcuate segment has an inner wall and an outer wall coupled to each other so as to define a space between the walls. An opening is provided in the top wall leading to the space between the walls of an arcuate segment for receiving a tool capable of moving the lower end of the arcuate segment outward sufficiently to release the detent so that the cap can be removed.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: August 3, 2004
    Assignee: L.L. Culmat, L.P.
    Inventors: Ricky W. Tumlin, L. Cullen Underwood
  • Molded aerosol can cap
    Publication number: 20040084454
    Abstract: A one-piece aerosol can cap formed of molded plastic has a top wall with an outside edge. A skirt depends from the outside edge of the top wall to a lower perimeter edge. A plurality of arcuate segments depends from the top wall inside the skirt. Each arcuate segment has an inwardly protruding detent. Each arcuate segment has an inner wall and an outer wall coupled to each other so as to define a space between the walls. An opening is provided in the top wall leading to the space between the walls of an arcuate segment for receiving a tool capable of moving the lower end of the arcuate segment outward sufficiently to release the detent so that the cap can be removed.
    Type: Application
    Filed: October 30, 2002
    Publication date: May 6, 2004
    Inventors: Ricky W. Tumlin, L. Cullen Underwood