Patents by Inventor Robert R. Ferenc

Robert R. Ferenc 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 applying a precision amount of sealant to exposed fasteners
    Patent number: 4971745
    Abstract: A method for applying a uniform sealant coating over the portion of a fastener exposed above a panel includes applying a sealant retaining shell over the exposed portion of the fastener to define a closed volume between the shell, fastener and panel. The shell has an aperture, removed from the mouth of the shell, for receiving sealant therethrough. An injection nozzle receiving structure for receiving a sealant injector nozzle therein is provided adjacent and substantially aligned with the aperture. Sealant is injected into the shell through the injection nozzle receiving structure and through the aperture therein to fill the area between the fastener and the shell. A pressure is selected for injecting the sealant such that injection is stopped when the shell is filled. The sealant is allowed to cure and the retaining shell is removed.
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: November 20, 1990
    Assignee: LTV Aerospace & Defense Company
    Inventors: Robert R. Ferenc, Jay B. Mize
  • Device for trimming to a net shape the edge of a metal skin
    Patent number: 4761884
    Abstract: A metal skin trimming device which cuts an edge of a first metal skin to a net shape that is complementary to the edge of a second metal skin that has been previously attached to a frame, such as the airframe of an aircraft fuselage. A guide carried by the device is adjustable to set the gap that will appear between the edges of the first and second metal skins when they are attached as by riveting to the airframe.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: August 9, 1988
    Assignee: General Dynamics Corporation/Convair Division
    Inventors: Peter D. Nguyen, Robert R. Ferenc
  • Method and apparatus for applying a sealant to exposed fasteners
    Patent number: 4519974
    Abstract: A method and apparatus for applying a uniform sealant coating over the portion of a fastener (14) exposed above a panel (10, 12) includes depositing an amount of uncured sealant (S) in a cavity (44) in a sealant retaining shell (40). The shell and sealant is applied over the exposed portion (22) of the fastener (14) and the retaining shell is brought into contact with the panel such that the uncured sealant is entrapped between the shell and the exposed portion of the fastener and the panel. As descent is made onto the fastener, a slight rotating motion may be used to adjust the sealant around the fastener equally. The sealant is allowed to cure and thereafter the shell is removed leaving a uniform sealant coating over the fastener exposed end.
    Type: Grant
    Filed: August 12, 1983
    Date of Patent: May 28, 1985
    Assignee: LTV Aerospace and Defense Company
    Inventors: Thomas H. Bravenec, Roger L. Boyd, Robert R. Ferenc