Patents by Inventor Mark P. Tandy

Mark P. Tandy 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).

  • Method for emobssing a non-repeating design
    Patent number: 4682540
    Abstract: Methods and apparatus' for embossing a non-repeating design on a web of material are disclosed. The methods include the steps of passing the web of material between a first pair of embossing rollers and then between a second pair of reembossing rollers. The non-repeating design may be provided by varying the rate at which the reembossing rollers are rotated and/or by providing the second pair of reembossing rollers with a diameter which is a non-rational multiple of the diameter of the first pair of rollers.The apparatus' include means for carrying out the aforementioned methods.A novel web product is also disclosed.
    Type: Grant
    Filed: June 12, 1986
    Date of Patent: July 28, 1987
    Assignee: Manville Corporation
    Inventors: Robert J. Eastman, Mark P. Tandy