Patents by Inventor Donald P. Wyman

Donald P. Wyman 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).

  • Condensation vapor degreaser
    Patent number: 5081772
    Abstract: A condensation vapor degreaser for cleaning soiled parts includes two separate paths for connecting a solvent chamber to a condenser. A primary path connects the solvent chamber directly to the condenser. A secondary path extends through a cleaning chamber. The primary path is opened and the secondary path is closed to permit the parts to be inserted or removed from the cleaning chamber while generating solvent vapors in the solvent chamber.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: January 21, 1992
    Assignee: Rochester Midland Corporation
    Inventor: Donald P. Wyman
  • Automatic cleaner for offset printing blanket
    Patent number: 4829897
    Abstract: An improved automatic blanket wash system for offset printing wherein the washing medium is a water-in-oil emulsion containing 5-35 percent by weight water and 65-95 percent by weight of a water insoluble phase that contains certain hydrocarbons in specific proportions and a surfactant having an HLB of 3-11.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: May 16, 1989
    Assignee: Printex Products Corporation
    Inventors: Donald P. Wyman, Grant B. Matta, William A. Beattie
  • Radiation curable coating composition comprising an oligomer, and an ultra-violet absorber
    Patent number: 4301209
    Abstract: A radiation curable coating comprising:A. An oligomer of Formula I: ##STR1## wherein: R.sup.1 is hydrogen or methyl;Y is a divalent urethane residue;B. A benzylidene acid ester of Formula IV: ##STR2## wherein R.sup.4 is independently alkyl or hydroxy alkylene. Preferably the coating composition contains a vinyl monomer copolymerizable with the oligomer. The process for curing the coating is also disclosed.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: November 17, 1981
    Assignee: GAF Corporation
    Inventors: Donald H. Lorenz, Shu T. Tu, Donald P. Wyman
  • Flexible substrates containing a radiation curable coating composition
    Patent number: 4216267
    Abstract: A radiation curable coating comprising:A. an oligomer of Formula I: ##STR1## wherein: R.sup.1 is hydrogen or methyl;Y is a divalent urethane residue;B. an acrylic ultra-violet light absorber of Formula IV: ##STR2## wherein R.sup.4 is alkyl or hydroxy alkylene. Preferably the coating composition contains a vinyl monomer copolymerizable with the oligomer. The process for curing the coating is also disclosed.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: August 5, 1980
    Assignee: GAF Corporation
    Inventors: Donald H. Lorenz, Shu T. Tu, Donald P. Wyman
  • Radiation curable coating composition comprising an acryl urethane oligomer, and an ultra-violet absorber
    Patent number: 4135007
    Abstract: A radiation curable coating comprising;A. an oligomer of Formula I: ##STR1## wherein: R.sup.1 is hydrogen or methyl;Y is a divalent urethane residue;B. a benzylidene acid ester of Formula IV: ##STR2## wherein R.sup.4 is independently alkyl or hydroxy alkylene. Preferably the coating composition contains a vinyl monomer copolymerizable with the oligomer. The process for curing the coating is also disclosed.
    Type: Grant
    Filed: December 29, 1977
    Date of Patent: January 16, 1979
    Assignee: GAF Corporation
    Inventors: Donald H. Lorenz, Shu T. Tu, Donald P. Wyman
  • Radiation curable coating composition comprising an acryl urethane oligomer and an ultra-violet absorber
    Patent number: 4129667
    Abstract: A radiation curable coating comprising;A. an oligomer of Formula I: ##STR1## wherein: R.sup.1 is hydrogen or methyl;Y is a divalent urethane residue;B. an acrylic ultra-violet light absorber of Formula IV: ##STR2## wherein R.sup.4 is alkyl or hydroxy alkylene. Preferably the coating composition contains a vinyl monomer copolymerizable with the oligomer. The process for curing the coating is also disclosed.
    Type: Grant
    Filed: December 29, 1977
    Date of Patent: December 12, 1978
    Assignee: GAF Corporation
    Inventors: Donald H. Lorenz, Shu-Tung Tu, Donald P. Wyman