Patents by Inventor Michael P. Grubb

Michael P. Grubb 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).

  • Roll stacker
    Patent number: 5080314
    Abstract: This invention relates to molded papier-mache supports for holding and spacing a plurality of rolls in a secure multi-layer stack. The supports are made of first and second sections connected to each other along a seam line. These sections are foldable to move a first section to a position beneath and in register with a second section. To strengthen the structure, the sections are formed with depressions which create lands. When in folded position, the lands on one support engage the lands on the other support. This stabilizes the structure.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: January 14, 1992
    Assignee: Henry Molded Products, Inc.
    Inventors: Mark A. Moyer, Michael P. Grubb