Patents by Inventor Richard P. Riegert

Richard P. Riegert 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).

  • Closed-loop sputtering system and method of operating same
    Patent number: 4201645
    Abstract: A closed-loop sputtering system for the deposition of thin films which includes a control means to maintain and control the voltage of the target electrode by control of the flow of gas to the plasma without measurement of the pressure of the system.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: May 6, 1980
    Assignee: Robert J. Ferran
    Inventor: Richard P. Riegert
  • Process for the protection of wear surfaces
    Patent number: 4124472
    Abstract: A process for the protection of wear surfaces is provided which comprises applying a micro-thin film of hard material to the surface of a substrate of softer and preferably tougher material, the film being elastically compliant and remaining intact even when plastic deformation of the substrate material occurs. In the practice of the process of the invention, the micro-thin film of hard material does not achieve its own modulus of rigidity and, therefore, does not directly absorb impact energy, but transmits the energy to the substrate material for absorption.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: November 7, 1978
    Inventor: Richard P. Riegert