Patents by Inventor James Van Essen

James Van Essen 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).

  • Publication number: 20250025945
    Abstract: An accessory tool includes an effector end including a body having first end and a second end opposite the first end, and a base shoulder adjacent the second end. The accessory tool further includes a shank coupled to the effector end. The shank includes a tool engagement portion configured to be received within a tool and having a hexagonal cross section defining a maximum outer width, a first reduced diameter portion disposed adjacent the effector end and defining a minimum outer dimension that is less than the maximum outer width, a fillet extending contiguous from the first reduced diameter portion and flaring outward to the base shoulder, and a second reduced diameter portion disposed adjacent the tool engagement portion and configured to receive a ball detent. The fillet defines a first radius of curvature, and the second reduced diameter portion defines a second radius of curvature.
    Type: Application
    Filed: October 7, 2024
    Publication date: January 23, 2025
    Inventors: James Van Essen, Douglas W. Allen, Brett Parendo, Michael J. Zimmermann
  • Patent number: 12138694
    Abstract: An accessory tool includes an adapter end, and a shank coupled to the adapter end and including a first length. The shank includes a tool engagement portion, and a first reduced portion disposed between the tool engagement portion and the adapter end. The first reduced portion has a second length. The shank additionally includes a second reduced portion formed in the tool engagement portion between the first reduced portion and an end of the shank. The second length is 2.5% to 15% of a total length of the accessory tool.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: November 12, 2024
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: James Van Essen, Douglas W. Allen, Brett Parendo, Michael J. Zimmermann
  • Publication number: 20210170502
    Abstract: An accessory tool includes an adapter end, and a shank coupled to the adapter end and including a first length. The shank includes a tool engagement portion, and a first reduced portion disposed between the tool engagement portion and the adapter end. The first reduced portion has a second length. The shank additionally includes a second reduced portion formed in the tool engagement portion between the first reduced portion and an end of the shank. The second length is 2.5% to 15% of a total length of the accessory tool.
    Type: Application
    Filed: February 19, 2021
    Publication date: June 10, 2021
    Inventors: James Van Essen, Douglas W. Allen, Brett Parendo, Michael J. Zimmermann
  • Patent number: 10953479
    Abstract: An accessory tool includes an adapter end having a maximum outer dimension, and a shank coupled to the adapter end. The shank includes a tool engagement portion including a cross section having a maximum outer width, a first reduced portion disposed between the tool engagement portion and the adapter end and having a first minimum outer dimension and a first length, and a second reduced portion formed in the tool engagement portion between the first reduced portion and an end of the shank. The second reduced portion is engaged by the tool to secure the shank to the tool, and has a second minimum outer dimension and a second length. The maximum outer dimension is greater than the maximum outer width. The maximum outer width is greater than the first minimum outer dimension and greater the second minimum outer dimension. The first length is greater than the second length.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: March 23, 2021
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: James Van Essen, Douglas W. Allen, Brett Parendo, Michael J. Zimmermann
  • Publication number: 20190314905
    Abstract: An accessory tool includes an adapter end having a maximum outer dimension, and a shank coupled to the adapter end. The shank includes a tool engagement portion including a cross section having a maximum outer width, a first reduced portion disposed between the tool engagement portion and the adapter end and having a first minimum outer dimension and a first length, and a second reduced portion formed in the tool engagement portion between the first reduced portion and an end of the shank. The second reduced portion is engaged by the tool to secure the shank to the tool, and has a second minimum outer dimension and a second length. The maximum outer dimension is greater than the maximum outer width. The maximum outer width is greater than the first minimum outer dimension and greater the second minimum outer dimension. The first length is greater than the second length.
    Type: Application
    Filed: June 4, 2019
    Publication date: October 17, 2019
    Inventors: James Van Essen, Douglas W. Allen, Brett Parendo, Michael J. Zimmermann
  • Patent number: 10421130
    Abstract: An accessory tool includes an effector end and a shank coupled to the effector end. The shank includes a tool engagement portion that is configured to be received within a tool and a reduced diameter portion disposed between the tool engagement portion and the effector end. The shank defines a first length, and the reduced diameter portion defines a second length that is 10% to 45% of the first length.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: September 24, 2019
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: James Van Essen, Douglas W. Allen, Brett Parendo, Michael J. Zimmermann
  • Publication number: 20170165766
    Abstract: An accessory tool includes an effector end and a shank coupled to the effector end. The shank includes a tool engagement portion that is configured to be received within a tool and a reduced diameter portion disposed between the tool engagement portion and the effector end. The shank defines a first length, and the reduced diameter portion defines a second length that is 10% to 45% of the first length.
    Type: Application
    Filed: December 9, 2016
    Publication date: June 15, 2017
    Inventors: James Van Essen, Douglas W. Allen, Brett Parendo, Michael J. Zimmermann