Patents by Inventor Eric Jon Christianson

Eric Jon Christianson 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: 7493770
    Abstract: A check valve is provided that includes a valve housing that has a side wall and a flow path therethrough, the side wall defining the flow path. The flow path includes an inlet, an outlet, and a centerline extending between the inlet and the outlet. At least one control member is positioned in the flow path and movable between a first position, wherein fluid flow through the valve housing is substantially prohibited and a second position wherein fluid flow is permitted. The side wall includes a stop configured to limit movement of the at least one control member at a pre-determined stop angle relative to the flow path centerline.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: February 24, 2009
    Assignee: General Electric Company
    Inventors: Eric Jon Christianson, Jerry Wayne Myers, John Mathew Hand, Kevin Todd Bowers
  • Patent number: 7040666
    Abstract: A gimballed joint includes an annular bellows seal circumscribed about a joint centerline mounted within forward and aft shrouds having clevises with lugs and a threaded hole disposed through each of lugs. A ring circumscribed about the lugs has counterbored holes. Each of the counterbored holes is aligned with one of the threaded holes. Pins having heads and shanks extending inwardly therefrom are disposed through and the heads engage the counterbored holes. Externally threaded portions of the shanks are threaded into internally threaded holes in the each of the lugs. A key is disposed through a key hole extending inwardly through each of the heads and through threaded together portions of external threads of each of the externally threaded portions and internal threads of each of the internally threaded holes. In one embodiment wear bushings are disposed in the counterbored holes between the heads and the ring.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: May 9, 2006
    Assignee: General Electric Company
    Inventors: Eric Jon Christianson, John Samuel Hill, Anthony Fredric Damele
  • Publication number: 20040245770
    Abstract: A gimballed joint includes an annular bellows seal circumscribed about a joint centerline mounted within forward and aft shrouds. The forward and aft shrouds have devises with lugs and a threaded hole is disposed through each of lugs. A ring circumscribed about the lugs has counterbored holes. Each of the counterbored holes is aligned with one of the threaded holes. Pins having heads and shanks extending inwardly therefrom are disposed through and the heads engage the counterbored holes. Externally threaded portions of the shanks are threaded into internally threaded holes in the each of the lugs. A key is disposed through a key hole extending inwardly through each of the heads and through threaded together portions of external threads of each of the externally threaded portions and internal threads of each of the internally threaded holes. In one embodiment wear bushings are disposed in the counterbored holes between the heads and the ring.
    Type: Application
    Filed: June 6, 2003
    Publication date: December 9, 2004
    Inventors: Eric Jon Christianson, John Samuel Hill, Anthony Fredric Damele