Patents by Inventor Jeffrey L. Sturtevant

Jeffrey L. Sturtevant 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 machining a stainless steel exhaust manifold for a multi-cylinder combustion engine
    Patent number: 6993839
    Abstract: A method is provided for machining the stainless steel automotive exhaust components that allows such components to be machined in high volumes and at a reasonable cost. An exemplary embodiment of the method includes the steps of: (a) supporting the manifold on a work structure; (b) clamping the manifold to the work structure; and (c) machining the supported and clamped manifold; (d) where the clamping step includes the step of clamping each of the plurality of inlet coupling flanges of the manifold separately; and (e) the machining step includes the step of machining the interface surfaces of the inlet coupling flanges. In a more detailed embodiment, the supporting and clamping steps orient the planes of the interface surfaces of the inlet coupling flanges of the manifold perpendicular to a spindle access of the milling machine.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: February 7, 2006
    Assignee: Omni Integrated Technologies, Inc.
    Inventors: Jeffrey L. Sturtevant, Timothy W. Chapman
  • Method for machining a stainless steel exhaust manifold for a multi-cylinder combustion engine
    Publication number: 20040006871
    Abstract: A method is provided for machining the stainless steel automotive exhaust components that allows such components to be machined in high volumes and at a reasonable cost. An exemplary embodiment of the method includes the steps of: (a) supporting the manifold on a work structure; (b) clamping the manifold to the work structure; and (c) machining the supported and clamped manifold; (d) where the clamping step includes the step of clamping each of the plurality of inlet coupling flanges of the manifold separately; and (e) the machining step includes the step of machining the interface surfaces of the inlet coupling flanges. In a more detailed embodiment, the supporting and clamping steps orient the planes of the interface surfaces of the inlet coupling flanges of the manifold perpendicular to a spindle access of the milling machine.
    Type: Application
    Filed: July 15, 2002
    Publication date: January 15, 2004
    Inventors: Jeffrey L. Sturtevant, Timothy W. Chapman