Patents by Inventor Peter Herweg

Peter Herweg 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).

  • Method of introducing reaction mixtures for single-component foams into pressure containers
    Patent number: 4146066
    Abstract: The invention relates to a method of introducing reaction mixtures for single-component foams into pressure containers. The reaction mixture comprises at least two reaction components and a blowing agent and is formed in an injection mixing head. The reaction mixture is then introduced into an evacuated pressure bottle provided with a valve. Additional pure blowing agent is added via the injection mixhead subsequent to the introduction of the reaction mixture into the pressure container.
    Type: Grant
    Filed: May 5, 1978
    Date of Patent: March 27, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Manfred Dietrich, Peter Herweg, Hans G. Vleurinck, Dietmar Benner
  • Insulating elements for walls and ceilings
    Patent number: 4072788
    Abstract: The invention relates to a method for the production of insulating elements for the walls and ceilings, made from facing layers fitted to a frame. Between the facing layers, a perforated foam-permeable, optionally reinforced, intermediate layer is inserted. One of the two chambers thus formed is subsequently filled with foam. The other chamber is filled with a foam permeated granular material.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: February 7, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Herweg, Werner Barthel
  • Process for making a laminate having a foam core
    Patent number: 3951717
    Abstract: A process is provided for the continuous production of a laminated product having a foam core between two substantially impermeable cover sheets one of which has longitudinally extending, transversely spaced inwardly directed recesses therein wherein a porous web is placed over the sheet having the recesses and a foamable liquid reaction mixture is poured over the web whereby only a part of the foamable reaction mixture passes through the web into the recesses.
    Type: Grant
    Filed: August 30, 1974
    Date of Patent: April 20, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Herweg, Roland Guse
  • Method for producing webs, panels or sandwich elements of foam plastics reinforced with rovings
    Patent number: 3931098
    Abstract: Means for producing fiber-reinforced foam plastic webs, panels, sandwich panels and the like from continuous rovings and a foam reaction mixture. Rovings are incorporated into a foam product or core by means of an air nozzle coupled to and adjustable in its position to the nozzle of a mixing head for ejecting the foam reaction mixture.
    Type: Grant
    Filed: February 12, 1974
    Date of Patent: January 6, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Herweg, Franz Prager