Patents by Inventor Ferdinand Kirsten

Ferdinand Kirsten 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).

  • Side handle
    Patent number: 9701007
    Abstract: A side handle (18) is provided for a handheld power tool (1). The user can grasp the side handle (18) by a grip element (19). A ring-shaped clamp is provided for clamping the side handle (18) onto the handheld power tool (1). The clamp (36) has two ends (32, 33) that can be joined. A pre-tensioned spring (39) presses the joinable ends (32, 33) against a stop (40) in order to join them under a force that acts in an effective direction (29). A release mechanism (41, 43) is held in a normal position by the force of the pre-tensioned spring (29) that acts in the effective direction (29). Against the force of the pre-tensioned spring (39) that acts in the effective direction (29), the user can deflect the release mechanism (41) into a release position in order to cancel the force that presses the joinable ends against the stop.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: July 11, 2017
    Assignee: Hilti Aktiengesellschaft
    Inventors: Markus Holubarsch, Stefan Schmid, Stefan Hammerstingl, Ferdinand Kirsten
  • SIDE HANDLE
    Publication number: 20160114472
    Abstract: A side handle (18) is provided for a handheld power tool (1). The user can grasp the side handle (18) by a grip element (19). A ring-shaped clamp is provided for clamping the side handle (18) onto the handheld power tool (1). The clamp (36) has two ends (32, 33) that can be joined. A pre-tensioned spring (39) presses the joinable ends (32, 33) against a stop (40) in order to join them under a force that acts in an effective direction (29). A release mechanism (41, 43) is held in a normal position by the force of the pre-tensioned spring (29) that acts in the effective direction (29). Against the force of the pre-tensioned spring (39) that acts in the effective direction (29), the user can deflect the release mechanism (41) into a release position in order to cancel the force that presses the joinable ends against the stop.
    Type: Application
    Filed: May 14, 2014
    Publication date: April 28, 2016
    Inventors: Markus Holubarsch, Stefan Schmid, Stefan Hammerstingl, Ferdinand Kirsten