Patents by Inventor James M. Ahrens

James M. Ahrens 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: 6830079
    Abstract: A method and apparatus for filling preforms with resin or slurry includes a tank for holding the slurry and an autoclave for holding the preforms. The tank and autoclave have a common vacuum system connected thereto, and the tank is disposed above the autoclave. This arrangement provides a compact casting system which utilizes a vacuum and gravity to transfer slurry from the tank to the preforms within the autoclave.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: December 14, 2004
    Assignee: General Electric Company
    Inventors: James M. Ahrens, Daniel Domanski, John A. Hornor, Ruth Hughes, Dennis James Landini, Roger Lee Ken Matsumoto, Hongyu Wang, Troy Frederick Brenner
  • Patent number: 4239387
    Abstract: A compact transport apparatus is provided for serially conveying a series of objects such as circuit boards through a zone of treatment such as for ultrasonic stripping of resist from the circuit boards. The apparatus is mounted to the treatment equipment and has receptacles for receiving the objects and holding them in closely spaced relationship during transport through the zone and an elevator for lifting the object from its receptacle after having crossed the zone and control mechanism for intermittently stopping and starting the transport. During the stopping, loading of an object into a receptacle can occur and the elevator operates to do the aforesaid lifting.
    Type: Grant
    Filed: March 28, 1979
    Date of Patent: December 16, 1980
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: James M. Ahrens