Patents by Inventor Paul R. Lewis

Paul R. Lewis 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).

  • Tear-off closure with entrapped pull-ring
    Patent number: 4076141
    Abstract: An improved tear-off closure for a container is disclosed having a circular top end wall, a closure skirt depending from the top end wall, an annular rim projecting radially outwardly from the bottom of the closure skirt and an integral concentric pull ring around the annular rim. The pull ring comprises a curled bead having a radially inwardly open slot therein into which a terminal edge portion of the annular rim projects to secure the pull ring in a fixed position of the base of the closure skirt prior to sealing of the closure on a container. A method and tools for forming such a closure are also disclosed.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: February 28, 1978
    Assignee: Aluminum Company of America
    Inventor: Paul R. Lewis
  • Tear-off closure
    Patent number: 4073399
    Abstract: An improved tear-off closure for a container comprising a top end wall, a depending closure skirt around the top end wall and a pull ring around the bottom edge of the closure skirt. The closure has a pair of score lines therein traversing the skirt and the top end wall to define a tear strip across the closure. The pull ring is integrally connected to the tear strip at the bottom of the closure skirt. A line of separation between the pull ring and the closure skirt extends from a location adjacent the score line on one side of the tear strip around the closure skirt to a location adjacent the score line on the other side of the tear strip. The curved terminal ends of the line of separation are spaced from the tear strip laterally of the score lines on both sides of the tear strip.
    Type: Grant
    Filed: February 25, 1976
    Date of Patent: February 14, 1978
    Assignee: Aluminum Company of America
    Inventor: Paul R. Lewis
  • Tear-off closure and method of forming the same
    Patent number: 4037551
    Abstract: An improved tear-off closure for a container is disclosed having a circular top end wall, a closure skirt depending from the top end wall, an annular rim projecting radially outwardly from the bottom of the closure skirt and an integral concentric pull ring around the annular rim. The pull ring comprises a curled bead having a radially inwardly open slot therein into which a terminal edge portion of the annular rim projects to secure the pull ring in a fixed position of the base of the closure skirt prior to sealing of the closure on a container. A method and tools for forming such a closure are also disclosed.
    Type: Grant
    Filed: February 25, 1976
    Date of Patent: July 26, 1977
    Assignee: Aluminum Company of America
    Inventor: Paul R. Lewis