Patents by Inventor Max Rid

Max Rid 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: 5247884
    Abstract: A method of forming a Ballard shell on a rotogravure printing roll or the like. At least one of the side surfaces of a roll base is covered with a removably fixed, adhering, concentric, annular disk which remains in place and limits the radial extent of plating on the side of the cylinder while a Ballard shell is plated on the roll. The disk is removable from the roll at the end of the process. The result of the process is a novel Ballard shell having a cleanly terminating inner circumference adjacent to the roll and a ledge portion on its inner periphery extending axially outward from the inner circumference. The axially extending ledge portion of the Ballard shell is a novel structural feature, and is responsible for the easy stripability of the shell after an extended printing run. Yet another aspect of the invention is a rotogravure roll or the like on which a Ballard shell having the previously described construction is formed.
    Type: Grant
    Filed: December 10, 1991
    Date of Patent: September 28, 1993
    Assignee: K. Walter Service Corporation
    Inventor: Max Rid