Patents by Inventor John D. Jacobsen

John D. Jacobsen 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).

  • Machine tool mounted marking apparatus and method
    Patent number: 6824337
    Abstract: A nosepiece adapter (10) for connecting a nosepiece (20) to a tool holder shank (30), wherein said nosepiece adapter (10) is comprised of a shaft (60) and an opposing nosepiece end (50) to receive said nosepiece (20), wherein a longitudinal cavity (70) extends through said nosepiece adapter (10) and opens at both ends of said nosepiece adapter (10); an escape valve cavity (80) extending from the outer surface of the nosepiece end (50) to said longitudinal cavity (70); wherein said shaft (60) includes a shaft attachment means for connecting said shaft (60) to said tool holder shank (30); and, wherein said nosepiece end (50) includes a nosepiece attachment means to connect said nosepiece (20) to said nosepiece end (50).
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: November 30, 2004
    Assignee: Dapra Corporation
    Inventors: Richard E. Pentz, John D. Jacobsen, William D. Sangster
  • Machine tool mounted marking apparatus and method
    Publication number: 20030039524
    Abstract: A nosepiece adapter (10) for connecting a nosepiece (20) to a tool holder shank (30), wherein said nosepiece adapter (10) is comprised of a shaft (60) and an opposing nosepiece end (50) to receive said nosepiece (20), wherein a longitudinal cavity (70) extends through said nosepiece adapter (10) and opens at both ends of said nosepiece adapter (10); an escape valve cavity (80) extending from the outer surface of the nosepiece end (50) to said longitudinal cavity (70); wherein said shaft (60) includes a shaft attachment means for connecting said shaft (60) to said tool holder shank (30); and, wherein said nosepiece end (50) includes a nosepiece attachment means to connect said nosepiece (20) to said nosepiece end (50).
    Type: Application
    Filed: September 19, 2002
    Publication date: February 27, 2003
    Inventors: Richard E Pentz, John D Jacobsen, William D Sangster