Patents by Inventor Michael J. Provencher

Michael J. Provencher 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).

  • Solvent flush reaction injection molding mixhead
    Patent number: 5562883
    Abstract: A solvent flush reaction injection molding mixhead has a mixing chamber with a solvent inlet port in one end and a chemical outlet port in an opposite end. A pair of hydraulically operated chemical injectors are connected to the mixing chamber between the solvent inlet port and chemical outlet port to inject liquid reaction molding chemicals at high pressure through injector ports into the mixing chamber. The mixed chemicals are delivered through the chemical outlet port to a spray wand on the mixhead for application to a mold surface or an object requiring a foam coating.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: October 8, 1996
    Assignee: Davidson Textron Inc.
    Inventors: Wayne C. Salisbury, James R. Pritchard, William M. Humphrey, Michael J. Provencher