Patents by Inventor Charles E. Effertz

Charles E. Effertz 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: 5277733
    Abstract: A handled, open-ended, single layer, elastic and resilient thermal insulator for cylindrical beverage containers made in the form of a flat rectangular strip of foamed cross-linked polyolefin which is slightly longer than the circumference of the container to be insulated and has a pair of overlapping inter-engaging tabs at its opposite end portions and integral closed handle elements extending radially outwardly from above and below the tabs when the strip is applied to such a container. The insulator is made by a method in which a generally rectangular strip is cut from a panel of such flexible expanded thermal insulating material and, at the same time, a U-shaped cut is made in the interior of each of the opposite terminal portions of the strip to thereby produce flexible tabs, with the open end of each of the U-shaped cuts facing each other.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: January 11, 1994
    Inventor: Charles E. Effertz
  • Patent number: 5147067
    Abstract: A handled, open-ended, single layer, elastic and resilient thermal insulator for cylindrical beverage containers made in the form of a flat rectangular strip of foamed cross-linked polyolefin which is slightly longer than the circumference of the container to be insulated and has a pair of overlapping inter-engaging tabs at its opposite end portions and integral closed handle elements extending radially outwardly from above and below the tabs when the strip is applied to such a container. The insulator is made by a method in which a generally rectangular strip is cut from a panel of such flexible expanded thermal insulating material and, at the same time, a U-shaped cut is made in the interior of each of the opposite terminal portions of the strip to thereby produce flexible tabs, with the open end of each of the U-shaped cuts facing each other.
    Type: Grant
    Filed: December 2, 1991
    Date of Patent: September 15, 1992
    Assignee: EBI
    Inventor: Charles E. Effertz
  • Patent number: 4927047
    Abstract: An inexpensive reusable insulated jacket for removably receiving an open beverage can therewith, and to maintain its contents in refrigerated condition, having a cover for preventing windblown sand and other foreign materials from entering the can and thereby contaminating its contents. The jacket is designed so that it is comprised of only two separate molded pieces of insulating material, a cylindrical cup-like member and a cover, the cover being secured to the cup-like member solely by a small elastic band anchored upon the cup-like member and extending over the cover while urging same toward closed protecting position.A bearing surface is molded into the cover and cooperates with a bearing surface molded into the cup-like member, so as to obviate the need for a fixed hinge member, the latter being difficult to secure and maintain in molded insulating material and relatively expensive to manufacture.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: May 22, 1990
    Assignee: Cantainer Corporation
    Inventors: Michael G. Stuber, Charles E. Effertz