Patents by Inventor David H. Perrone

David H. Perrone 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).

  • Method for bonding thermally-mismatched elements of a traveling wave tube
    Patent number: 5501390
    Abstract: A method for bonding thermally-mismatched elements of a traveling wave tube employs a metallic plate of undulating character. The plate is located at the region of the interface between tube elements formed of materials of materially-differing thermal character such as the ceramic termination piece and an adjacent sever pole piece of copper. Through either a brazing or a sintering process, pluralities of bonds are formed at points of tangency between the plate and the two elements of differing thermal expansion coefficients. As a result, a good heat flow path, accompanied by a more stable r.f. interface, is formed between the materials that is not subject to fracture as are prior art diffusion bonds.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: March 26, 1996
    Assignee: Litton Systems, Inc.
    Inventors: Curtis G. Allen, David H. Perrone, David M. Rossi
  • Traveling wave tube with plate for bonding thermally-mismatched elements
    Patent number: 5402032
    Abstract: A method for bonding thermally-mismatched elements of a traveling wave tube employs a metallic plate of undulating character. The plate is located at the region of the interface between tube elements formed of materials of materially-differing thermal character such as the ceramic termination piece and an adjacent sever pole piece of copper. Through either a brazing or a sintering process, pluralities of bonds are formed at points of tangency between the plate and the two elements of differing thermal expansion coefficients. As a result, a good heat flow path, accompanied by a more stable r.f. interface, is formed between the materials that is not subject to fracture as are prior art diffusion bonds.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: March 28, 1995
    Assignee: Litton Systems, Inc.
    Inventors: Curtis G. Allen, David H. Perrone, David M. Rossi
  • Traveling wave tube with thermally-insensitive loss button structure
    Patent number: 5391963
    Abstract: A loss button for a traveling wave tube. The front and rear planar surfaces of the ceramic pill-shaped button body are of coated metallic composition. The periphery is uncoated to permit r.f. energy to enter the button through thee cavity of the planar, metallic spacer into which the button is inserted. By coating the body surfaces, the button itself acts as a resonant cavity for attenuation of a predetermined bandwidth so that the dimensional changes that occur during heating to the surrounding and adjacent metallic elements, including the cavity in the spacer for receiving the button and the adjacent braze washers, will not affect the attenuation band of the tube.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: February 21, 1995
    Assignee: Litton Systems, Inc.
    Inventors: Curtis G. Allen, David H. Perrone, David M. Rossi