Patents by Inventor Brian K. Haman

Brian K. Haman 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).

  • Reciprocating tool with fluid driven counterweight
    Patent number: 9981372
    Abstract: In one embodiment, a reciprocating tool includes a first variable volume fluid chamber, a second variable volume fluid chamber in fluid communication with the first variable volume fluid chamber, a plunger configured to modify the volume of the first variable volume fluid chamber by movement generally in a first direction along a plunge axis such that a portion of a fluid moves from one of the first and second variable volume fluid chamber to the other of the first and second variable volume fluid chamber, a counterweight configured such that the movement of the portion of the fluid results in a movement of the counterweight generally in a second direction along the plunge axis, the second direction opposite to the first direction, and a chuck assembly supported by the plunger.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: May 29, 2018
    Assignees: Robert Bosch Tool Corporation, Robert Bosch GmbH
    Inventor: Brian K. Haman
  • Reciprocating Tool with Fluid Driven Counterweight
    Publication number: 20140182871
    Abstract: In one embodiment, a reciprocating tool includes a first variable volume fluid chamber, a second variable volume fluid chamber in fluid communication with the first variable volume fluid chamber, a plunger configured to modify the volume of the first variable volume fluid chamber by movement generally in a first direction along a plunge axis such that a portion of a fluid moves from one of the first and second variable volume fluid chamber to the other of the first and second variable volume fluid chamber, a counterweight configured such that the movement of the portion of the fluid results in a movement of the counterweight generally in a second direction along the plunge axis, the second direction opposite to the first direction, and a chuck assembly supported by the plunger.
    Type: Application
    Filed: December 27, 2013
    Publication date: July 3, 2014
    Applicants: ROBERT BOSCH GMBH, ROBERT BOSCH TOOL CORPORATION
    Inventor: Brian K. Haman