Patents by Inventor Robert Bruce Bentley

Robert Bruce Bentley 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).

  • Punch and draw stud having multi-start threads, and method of engaging same
    Patent number: 11820037
    Abstract: A punch according to some embodiments of the disclosure includes a body having a punching edge and a wall forming a passageway therethrough, the wall having a multi-start thread formed thereon, and a draw stud according to some embodiments of the disclosure includes an elongated cylinder having a multi-start thread thereon which is configured to be coupled to the multi-start thread of the punch. The number of starts provided on the punch corresponds to the number of starts provided on the draw stud. The multi-start thread on the punch is engaged with the multi-start thread on the draw stud in use. A method using same to punch a hole in sheet metal is also provided.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: November 21, 2023
    Assignee: EMERSON PROFESSIONAL TOOLS, LLC
    Inventors: Arthur A. Piper, Robert Bruce Bentley, Andrew Troy, Ryan McManus
  • PUNCH AND DRAW STUD HAVING MULTI-START THREADS, AND METHOD OF ENGAGING SAME
    Publication number: 20230030817
    Abstract: A punch according to some embodiments of the disclosure includes a body having a punching edge and a wall forming a passageway therethrough, the wall having a multi-start thread formed thereon, and a draw stud according to some embodiments of the disclosure includes an elongated cylinder having a multi-start thread thereon which is configured to be coupled to the multi-start thread of the punch. The number of starts provided on the punch corresponds to the number of starts provided on the draw stud. The multi-start thread on the punch is engaged with the multi-start thread on the draw stud in use. A method using same to punch a hole in sheet metal is also provided.
    Type: Application
    Filed: July 15, 2022
    Publication date: February 2, 2023
    Inventors: ARTHUR A. PIPER, ROBERT BRUCE BENTLEY, ANDREW TROY, RYAN MCMANUS
  • Step bit
    Patent number: 10245656
    Abstract: A step bit according to some embodiments includes a body including one or more flutes having a cutting edge configured to cut a hole in a workpiece, and a plurality of steps provided on the body. The steps progressively increase in diameter from a first distal step to a terminal proximal step. One or more of the steps have first and second lands. An outer diameter of the first land is less than the outer diameter of the second land. A length of the first land is less than a length of the second land.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: April 2, 2019
    Assignee: GREENLEE TOOLS, INC.
    Inventors: Arthur Anton Piper, John Jeremiah Morton, Nalin Devalam, Robert Bruce Bentley
  • STEP BIT
    Publication number: 20190030620
    Abstract: A step bit according to some embodiments includes a body including one or more flutes having a cutting edge configured to cut a hole in a workpiece, and a plurality of steps provided on the body. The steps progressively increase in diameter from a first distal step to a terminal proximal step. One or more of the steps have first and second lands. An outer diameter of the first land is less than the outer diameter of the second land. A length of the first land is less than a length of the second land.
    Type: Application
    Filed: July 27, 2017
    Publication date: January 31, 2019
    Inventors: Arthur Anton Piper, John Jeremiah Morton, Nalin Devalam, Robert Bruce Bentley