Patents by Inventor Gail F. Duncan

Gail F. Duncan 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: 5507419
    Abstract: A multi-functional, environmentally-oriented one-piece container closure panel has a peripheral rib adapted to removably engage the lip of a container end. The closure panel is slidably rotatable on the lip such that an opening in the closure panel may be variably positioned in alignment with a push-in opening in the container end to control the dispensing of container contents. When removed, the one-piece container closure may be disposed of separately, allowing recycling of reusable container materials or disposal of biodegradable container materials. Because disposed of separately, the container closure may be of any suitable material appropriate for the application, while different reusable or biodegradable materials may be used for the container.
    Type: Grant
    Filed: November 3, 1993
    Date of Patent: April 16, 1996
    Assignee: Tri-Made Products, Inc.
    Inventors: Clyde J. Martin, Gail F. Duncan
  • Patent number: 5305931
    Abstract: A multi-functional, environmentally-oriented one-piece container closure panel has a peripheral rib adapted to removably engage the lip of a container end. The closure panel is slidably rotatably on the lip such that an opening in the closure panel may be variably positioned in alignment with a push-in opening in the container end to control the dispensing of container contents. When removed, the one-piece container closure may be disposed of separately, allowing recycling of reusable container materials or disposal of biodegradable container materials. Because disposed of separately, the container closure may be of any suitable material appropriate for the application, while different reusable or biodegradable materials may be used for the container.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: April 26, 1994
    Assignee: Iri-Made Products, Inc.
    Inventors: Clyde J. Martin, Gail F. Duncan
  • Patent number: 5213238
    Abstract: A multi-functional, environmentally-oriented one-piece container closure panel has a peripheral rib adapted to removably engage the lip of a container end. The closure panel is slidably rotatable on the lip such that an opening in the closure panel may be variably positioned in alignment with a push-in opening in the container end to control the dispensing of container contents. When removed, the one-piece container closure may be disposed of separately, allowing recycling of reusable container materials or disposal of biodegradable container materials. Because disposed of separately, the container closure may be of any suitable material appropriate for the application, while different reusable or biodegradable materials may be used for the container.
    Type: Grant
    Filed: January 8, 1992
    Date of Patent: May 25, 1993
    Assignee: Tri-Made Products, Inc.
    Inventors: Clyde J. Martin, Gail F. Duncan
  • Patent number: 4331267
    Abstract: A combined caulking tube plunger and enclosure assembly is disclosed which includes a single piece of drawn metal in generally a cup-shaped configuration including a bottom wall, a circular or annular side wall which forms a close fit with the inside diameter of a caulking tube and which provides guidance of the plunger portion through the caulking tube, and an outer rim which is adapted to be rolled over the outer end of a caulking tube to form a closure and seal therewith. A circumferential break-away score or dart is formed in the side wall axially inwardly of the rim which causes the major portion of the side wall and the bottom wall, forming a plunger, to be broken away from the rim upon the application of force by the ram of a caulking gun thus to separate the plunger portion from the rim portion.
    Type: Grant
    Filed: August 15, 1980
    Date of Patent: May 25, 1982
    Assignee: Tri-Made Products, Inc.
    Inventors: Gail F. Duncan, Emerson F. Browning, Karl Rotterman