Patents by Inventor Peter Rheinfeld

Peter Rheinfeld 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).

  • Apparatus for the continuous manufacture of phenolic resin foam in endless sheets
    Patent number: 4042314
    Abstract: An apparatus for the continuous manufacture of phenolic resin foam in an endless sheet which includes mixing means for expandable liquid phenolic resin with a blowing agent and an acid-containing curing agent, optionally with the addition of additives, and means for processing the mixture in a temperature-controllable double belt press. The apparatus also comprises a device for cooling the phenolic resin to a temperature of from about 8.degree. to about 15.degree. C.
    Type: Grant
    Filed: October 9, 1974
    Date of Patent: August 16, 1977
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Klaus Bruning, Hans Junger, Wolfgang Pungs, Peter Rheinfeld, Franz Weissenfels, Michael Wienand
  • Apparatus for the continuous manufacture of phenolic resin foam in endless sheets
    Patent number: 3999230
    Abstract: An apparatus for the continuous manufacture of phenolic resin foam in an endless sheet which includes means for mixing expandable liquid phenolic resin with a blowing agent and an acid-containing curing agent, optionally with the addition of additives, and means for processing the mixture in a temperature-controllable double belt press. The apparatus also comprises a device for cooling the phenolic resin to a temperature of from about 8 to about 15.degree. C.
    Type: Grant
    Filed: February 13, 1975
    Date of Patent: December 28, 1976
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Klaus Bruning, Hans Junger, Wolfgang Pungs, Peter Rheinfeld, Franz Weissenfels, Michael Wienand