Patents by Inventor Christopher F. Estkowski

Christopher F. Estkowski 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).

  • Appliance roller
    Patent number: 5276942
    Abstract: A roller mechanism for supporting an article on a support surface for selective movement thereon. The roller mechanism including a support member rotatably connected to the article to be supported, a bearing for providing antifriction rotation between the support member and the article to be supported, an axle or axles connected to the support member, and a plurality of roller elements mounted about the support member in a generally circular pattern, each roller element being independently rotatable about an axle.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: January 11, 1994
    Assignee: Shepherd Products U.S., Inc.
    Inventors: Michael H. Estkowski, Christopher F. Estkowski