Patents by Inventor Anthony C. Murray Griffiths

Anthony C. Murray Griffiths 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).

  • Froth process for continous manufacture of polyurethane foam slab-stocks
    Patent number: 5665287
    Abstract: A process and a system for the continuous manufacture of polymeric foams. Reactive chemical components and additives comprising a low boiling blowing agent are mixed under pressure; the mixture is then frothed before chemical reaction takes place by feeding the mixture through a pressure equalizing and frothing device comprising a pressure-drop zone opening into a frothing cavity having an output aperture to discharge the froth onto a moving substrate.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: September 9, 1997
    Assignee: Foaming Technologies Cardio BV
    Inventors: Carlo Fiorentini, Anthony C. Murray Griffiths
  • Froth system for continuous manufacture of polyurethane foam slab-stocks
    Patent number: 5639483
    Abstract: A process and a system for the continuous manufacture of polymeric foams. Reactive chemical components and additives comprising a low boiling blowing agent are mixed under pressure; the mixture is then frothed before chemical reaction takes place by feeding the mixture through a pressure equalizing and frothing device having a pressure-drop zone opening into a frothing cavity having an output aperture to discharge the froth onto a moving substrate.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 17, 1997
    Assignee: Foaming Technologies Cardio BV
    Inventors: Carlo Fiorentini, Anthony C. Murray Griffiths
  • Froth system for continuous manufacture of polyurethane foam slab-stocks
    Patent number: 5620710
    Abstract: A process and a system for the continuous manufacture of polymeric foams. Reactive chemical components and additives comprising a low boiling blowing agent are mixed under pressure; the mixture is then frothed before chemical reaction takes place by feeding the mixture through a pressure equalizing and frothing device having a pressure-drop zone opening into a frothing cavity having an output aperture to discharge the froth onto a moving substrate.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 15, 1997
    Assignee: Foaming Technologies Cardio BV
    Inventors: Carlo Fiorentini, Anthony C. Murray Griffiths