Patents by Inventor Senobio Campos

Senobio Campos 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: 3974746
    Abstract: A mono-seal pump piston comprising a mono-seal assembly including a central seal-supporting hub having a plurality of annular support ribs and a pair of resilient seals oppositely disposed on either side of the supporting hub, the seals including an outer annular sealing lip for sealing engagement with an inner wall of a pump cylinder and an inner annular seaing lip for sealing engagement about the piston rod which passes therethrough. The pump piston is retained on the piston rod by a pair of mounting followers positioned on either side of the piston assembly and held thereon by a nut.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: August 17, 1976
    Inventor: Senobio Campos