Patents by Inventor Erich M. Christoph

Erich M. Christoph 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).

  • Patent number: 4900493
    Abstract: A method and apparatus for the production of a synthetic resin skin uses a mold for forming at least two separate skin sections which are then joined prior or after a final heat treatment. The synthetic resin skin sections are produced in at least two separate mold members, and the skin sections are then caused to contact each other along determined faces or margins which are joined under light pressure. Any so-called selvage is easily removed after the joining which intimately bonds the skin sections to each other due to the curing of the synthetic resin.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: February 13, 1990
    Assignee: YMOS Aktiengesellschaft Industrieprodukte
    Inventors: Hermann A. Bartels, Erich M. Christoph, Ruediger Leipnitz
  • Patent number: 4773844
    Abstract: An apparatus for the production of a synthetic resin skin uses a mold for forming at least two separate skin sections which are then joined prior or after a final heat treatment. The synthetic resin skin sections are produced in at least two separate mold members, and the skin sections are then caused to contact each other along determined faces or margins which are joined under light pressure. Any so-called selvage is easily removed after the joining which intimately bonds the skin sections to each other due to the curing of the synthetic resin.
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: September 27, 1988
    Assignee: Ymos Aktiengesellschaft Industrieprodukte
    Inventors: Hermann A. Bartels, Erich M. Christoph, Ruediger Leipnitz
  • Patent number: 4606868
    Abstract: A thin-walled work piece of plastics material is cast in a mold by pouring or flowing the plastics material in the form of a plastisol or a flowable powder into a preheated casting mold which is locked to a casting container in a sealed manner to form a closed casting cavity. The mold and the container are then lifted or rotated through at least 180.degree.. A reduced pressure is maintained in the cavity at least prior and during the tilting. After a predetermined time the reduced pressure is removed and the mold and container are tilted back into the starting position. The mold and container are then separated again and the mold is then heated for completion of the jelling or curing whereupon the mold is cooled for removing the work piece from the mold.
    Type: Grant
    Filed: June 18, 1984
    Date of Patent: August 19, 1986
    Assignee: Ymos Aktiengesellschaft Industrieprodukte
    Inventors: Erich M. Christoph, Hermann A. Bartels