Patents Assigned to Furnier-Und Sperrholzwerk J. F. Werz, Jr. KG Werzalit-Pressholzwerk
  • Molding method
    Patent number: 4115490
    Abstract: A mixture of a fibrous material and a hot-setting binder is formed and subjected to the action of a high-frequency electromagnetic field. The mixture is subsequently cold molded and may then be hot molded. The alternating field slightly heats the binder thereby lowering its viscosity and, in addition, causes the moisture and the binder which are entrapped in the fibers of the fibrous material to be displaced towards the surfaces of the fibers. These effects lead to an improvement in the cold-adhesiveness of the mixture.
    Type: Grant
    Filed: December 12, 1975
    Date of Patent: September 19, 1978
    Assignee: Furnier- und Sperrholzwerk J. F. Werz Jr. KG Werzalit-Pressholzwerk Oberstenfeld
    Inventor: Edmund Munk
  • Knock-down partition wall system
    Patent number: 4065898
    Abstract: The wall system has various wall elements which can be erected and taken down, to create various kinds of partition walls. Each wall element is composed of two parallel but spaced particle-board panels which are connected and have interposed between a sound-absorbent and heat-retardant material.
    Type: Grant
    Filed: May 20, 1975
    Date of Patent: January 3, 1978
    Assignee: Furnier-und Sperrholzwerk J. F. Werz Jr. KG Werzalit Pressholzwerk
    Inventor: Edmund Munk
  • Method of making shaped articles
    Patent number: 3997643
    Abstract: A mixture of fibrous material and a thermosetting binder is pressed in unheated state at a working station to convert it into a semi-finished body having approximately the shape and size of the desired shaped article, and thereupon the semi-finished body is pressed at the same working station but under application of heat, in order to convert it into the desired shaped article while setting the thermosetting binder.
    Type: Grant
    Filed: September 12, 1975
    Date of Patent: December 14, 1976
    Assignee: Furnier-und Sperrholzwerk J. F. Werz Jr. KG Werzalit - Pressholzwerk
    Inventors: Edmund Munk, Herbert Haas
  • Apparatus for making shaped articles
    Patent number: 3975127
    Abstract: A mixture of fibrous material and a thermosetting binder is pressed in unheated state at a working station to convert it into a semi-finished body having approximately the shape and size of the desired shaped article, and thereupon the semi-finished body is pressed at the same working station but under application of heat, in order to convert it into the desired shaped article while setting the thermosetting binder.
    Type: Grant
    Filed: February 5, 1975
    Date of Patent: August 17, 1976
    Assignee: Furnier-Und Sperrholzwerk J. F. Werz, Jr. KG Werzalit-Pressholzwerk
    Inventors: Edmund Munk, Herbert Haas