Patents by Inventor Louis G. DeGrace, Jr.

Louis G. DeGrace, Jr. 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).

  • Fuel injector
    Patent number: 6056214
    Abstract: A fuel injector having pressure equalization passages is provided to equalize the pressure differential across an armature in high vapor pressure fuels. At least one through passage is included that extends from a chamber beneath the armature to a chamber atop the armature to prevent differential pressure buildup when the injector is closed. The passages enable communication between the areas above and below the armature to rapidly equalize the pressure acting on the armature as the boiling bubbles burst and the fuel "explodes".
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: May 2, 2000
    Assignee: Siemens Automotive Corporation
    Inventor: Louis G. DeGrace, Jr.
  • Fuel rail for bottom and side fed injectors
    Patent number: 5211149
    Abstract: A fuel rail for a side- or bottom- fed injector wherein the rail contains conductors, and the injectors are connected to the conductors simultaneously with the insertion of the injectors into through-holes in the rail.
    Type: Grant
    Filed: February 7, 1992
    Date of Patent: May 18, 1993
    Assignee: Siemens Automotive L.P.
    Inventor: Louis G. DeGrace, Jr.
  • Method of making fuel rail for bottom and side fed injectors by extrusion
    Patent number: 5168625
    Abstract: A fuel rail for a side- or bottom- fed injector wherein the rail contains conductors, and the injectors are connected to the conductors simultaneously with the insertion of the injectors into through-holes in the rail. The fuel rail is made by extruding material to a desired transverse shape, cutting the material and machinery transverse through holes in the extruded material.
    Type: Grant
    Filed: February 7, 1992
    Date of Patent: December 8, 1992
    Assignee: Siemens Automotive L.P.
    Inventor: Louis G. DeGrace, Jr.
  • Fuel rail for bottom and side fed injectors
    Patent number: 5111794
    Abstract: A fuel rail for a side- or bottom- fed injector wherein the rail contains conductors, and the injectors are connected to the conductors simultaneously with the insertion of the injectors into through-holes in the rail.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: May 12, 1992
    Assignee: Siemens Automotive L.P.
    Inventor: Louis G. DeGrace, Jr.