Patents by Inventor Wendell Conn

Wendell Conn 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).

  • Method for adding strength to a container
    Patent number: 5865338
    Abstract: An improved method of blow molding a hollow article is disclosed comprising the adaptation of a die pin (26) to include spaced apart channels (38) therein that extend from top to bottom along the sides of the die pin. The channels create reinforcement ribs (70) along the inside surface (68) of a formed parison (30). The ribs expand with the parison into a final form and serve to reinforce the resultant body while being visible only from the inside. The channels (38) are each bifurcated to provide a segment (44) below a shut-off surface (46) in which plastic exiting the die pin can expand to form ribs (70) of substantial thickness. Portions of the parison sidewalls (66) between the ribs (70) are thinned to reduce part weight and the ribs (70) reinforce the sidewalls to compensate yet, being visible only from the inside, do not detract from the external appearance of the article.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: February 2, 1999
    Assignee: Rubbermaid Incorporated
    Inventor: Wendell Conn
  • Internal surface of a container lid
    Patent number: D404868
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: January 26, 1999
    Assignee: Rubbermaid Incorporated
    Inventor: Wendell Conn
  • Internal surface of a container
    Patent number: D405575
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: February 9, 1999
    Assignee: Rubbermaid Incorporated
    Inventor: Wendell Conn