Patents by Inventor Daniel F. Vasconcellos

Daniel F. Vasconcellos 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: 4365816
    Abstract: A self-damping bellows seal assembly for providing a seal between a rotatable shaft and a stationary member through which the shaft extends. The assembly includes a flexible bellows surrounding the shaft and secured at one end thereto. An annular face seal is fixed and sealed to the other end of the bellows and is biased by the bellows into sealing engagement with the stationary member. The means which secures and seals the face seal to the bellows includes a flexible member which closely surrounds the shaft and dampens vibrations induced in the bellows. The bellows seal assembly includes stamped sheet-metal parts and can be used when the assembly is to be secured to the stationary member and the face seal to engage a radial face on the shaft.
    Type: Grant
    Filed: October 29, 1980
    Date of Patent: December 28, 1982
    Assignee: EG&G Sealol, Inc.
    Inventors: Norman E. Johnson, Daniel F. Vasconcellos