Patents by Inventor Gregory L. Petkovsek

Gregory L. Petkovsek 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).

  • Adhesive structure for heat sealing
    Patent number: 5709915
    Abstract: The present invention addresses the need to effectively heat seal various polymeric materials to each other. The invention is particularly useful in solving the problems associated with sealing dissimilar materials together. A bonded polymer structure and method for preparing the structure are provided. The bonded polymer structure comprises a first polymeric panel, a second polymeric panel, and a one layer adhesive or two layer adhesive structure which binds them together. The two layer adhesive structure comprises a tie layer and a sealant layer disposed between the first polymeric panel and the second polymeric panel, the tie layer contacting the first polymeric panel and the sealant layer, and the sealant layer contacting the layer and the inner side of the second polymeric panel. A closure arrangement may be integrally formed with the first polymeric panel.
    Type: Grant
    Filed: August 4, 1995
    Date of Patent: January 20, 1998
    Assignee: Reynolds Consumer Products, Inc.
    Inventors: Mladomir Tomic, Gregory L. Petkovsek
  • Minimal curl sealing flange
    Patent number: 5655273
    Abstract: The present invention sets forth a profile sealing strip having a lateral flange and a sealant layer. The lateral flange includes a first section, a second section, and a middle section being disposed between and connected to the first and second sections. The closure portion has a base connected to the middle sections and protruding beyond the upper surfaces of the first and second sections. The structure of the sealant layer and the lateral flange are modified so as to reduce the curl experienced during the cooling process after the lateral flange and the sealant layer are attached to one another.
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: August 12, 1997
    Assignee: Reynolds Consumer Products, Inc.
    Inventors: Mladomir Tomic, Timothy J. May, Catherine E. Kettner, Gregory L. Petkovsek
  • Method of thermally splicing zippers
    Patent number: 5599415
    Abstract: A method of thermally splicing a first zipper to a second zipper, and the thermally formed splice produced by this method, are provided. The first and second zippers each include a male profile and a female profile adapted to interlock with each other. The splice is prepared by thermally fusing an end section of the male profile of the first zipper to an end section of the male profile of the second zipper and thermally fusing an end section of the female profile of the first zipper to an end section of the female profile of the second zipper. Alternatively, the splice can be prepared by thermally fusing the end sections of two closed zippers. The male profile of each zipper includes a male locking member, and the female profile of each zipper includes a female locking member.
    Type: Grant
    Filed: July 11, 1995
    Date of Patent: February 4, 1997
    Assignee: Reynolds Consumer Products Inc.
    Inventors: Mladomir Tomic, Gregory L. Petkovsek