Patents by Inventor Rudolph J. Bacher

Rudolph J. Bacher 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).

  • Squeegee for thick film screen printing processes
    Patent number: 5448948
    Abstract: An improved squeegee for screen printing a thick film ink onto a substrate of a microelectronics circuit in order to form a thick film on the substrate. The squeegee is specifically configured to eliminate the creation of voids in a thick film deposited using the squeegee by enhancing the flow characteristics of the thick film ink as it is forced through a printing screen by the squeegee. Improved flow characteristics are achieved be appropriately configuring the cross-sectional profile of the squeegee in order to localize the printing forces on the ink at the working edge of the squeegee, in order to prevent ink ahead of the working edge from prematurely filling the openings in the screen.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: September 12, 1995
    Assignee: Delco Electronics Corporation
    Inventors: Jeffery P. Somers, Sherri L. Bernhard, Ronald E. Robison, Donald E. Eagle, Fred E. Richter, Rudolph J. Bacher
  • Dielectric compositions of zirconates and/or aluminates and devices thereof
    Patent number: 4089038
    Abstract: Dielectric powder compositions of certain alkaline earth metal zirconates and/or aluminates plus a glass, useful for forming dielectric layers in multilayer electrode/dielectric structures on an alumina substrate. Also, dispersions of such compositions in a vehicle and the resultant multilayer structures.
    Type: Grant
    Filed: March 30, 1976
    Date of Patent: May 9, 1978
    Assignee: E. I. Du Pont de Nemours and Co.
    Inventor: Rudolph J. Bacher