Patents by Inventor Clifford A. Bellum, Jr.

Clifford A. Bellum, Jr. 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).

  • High spiral angle winding cores
    Patent number: 5472154
    Abstract: The invention provides spirally wound paperboard cores for winding of textiles and other materials and which have enhanced high speed winding capability. The spirally wound paperboard plies forming the body wall of the paperboard core have a predetermined spiral winding angle with respect to the axis of the cylindrical body wall of greater than 71 degrees. In winding cores having a relatively large ID of between about 4.8 in. (120 mm) and 6 in. (150 mm), the paperboard plies forming the spirally wound cores have a winding angle of greater than 74 degrees. In winding cores having a lower ID of less than 4.8 inches (120 mm), all of the paperboard plies have a width of 3.5 in. (89 mm) or less and a spiral winding angle of greater than 71 degrees.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: December 5, 1995
    Assignee: Sonoco Products Company
    Inventors: Yanping Qiu, Terry D. Gerhardt, Tony F. Rummage, Clifford A. Bellum, Jr.