Patents by Inventor Olaf Haehndel

Olaf Haehndel 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: 20230302615
    Abstract: A drive-in tool for driving fasteners into a workpiece, wherein the tool comprises in particular: a safety device for transferring the drive-in tool from a trip-ready state into a secured state after expiry of a delay, wherein the safety device comprises a control volume and an activation element, wherein in the first position of the activation element a charging connection is defined between the control volume and the gas pressure source connection, and wherein in the second position of the activation element a discharging connection is defined between the control volume and a pressure sink, wherein one connection from the charging connection and the discharging connection comprises a smallest cross-sectional flow area which, together with a gas pressure of the gas pressure source, determines the delay time of the safety device. The present disclosure also relates to a corresponding method for operating a drive-in tool.
    Type: Application
    Filed: May 16, 2023
    Publication date: September 28, 2023
    Inventor: Olaf Hähndel
  • Patent number: 11667017
    Abstract: A drive-in tool for driving fasteners into a workpiece, wherein the tool comprises in particular: a safety device (8) which is coupled with the trigger element (6) and is set up to bring about a transfer of the drive-in tool (1) from a trip-ready state (100) into a secured state (101) after expiry (820) of a delay time which proceeds from an activation (810) of the safety device (8), wherein the safety device (8) comprises a control volume (15), wherein the safety device (8) comprises an activation element (33) which is changeable between a first and a second position by way of the trigger element (6), wherein in the first position of the activation element (33) a first pneumatic connection is defined between the control volume (15) and the gas pressure source connection (23), which is hereafter referred to as charging connection (27.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: June 6, 2023
    Assignee: Illinois Tool Works Inc.
    Inventor: Olaf Hähndel
  • Patent number: 11491622
    Abstract: This relates to a driving tool for driving fastening means, nails/staples, into a workpiece, a trigger lever, which can be actuated manually, and a workpiece contact element, which can be actuated by placing the tool onto the workpiece, the tool operates in a single shot mode, in which each individual sequence of an actuation of the workpiece contact element with subsequent actuation of the trigger lever triggers a driving-in cycle, the tool operates in a bump firing mode, in which, with the trigger lever continuously actuated, each individual actuation of the workpiece contact element triggers a driving-in cycle, a resetting assembly providing, by means of which the tool is resettable from the bump firing mode into single shot mode in an automatic, time-controlled resetting operation. It is proposed that a signaling assembly, which emits a feedback signal to the user before, after or during each automatic resetting operation, is provided.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: November 8, 2022
    Assignee: Illinois Tool Works Inc.
    Inventors: Torsten Weigmann, Klaus Von Soest, Olaf Haehndel
  • Patent number: 11224959
    Abstract: A driving tool for driving fasteners into a workpiece and operable in a single shot mode and in a bump fire mode, wherein the driving tool includes a resetting assembly including a control volume, wherein the resetting assembly is activatable in the bump fire mode by movement of a piston during each fastener driving-in cycle so that a fluid path from a cylinder to the control volume facilitates an increase in pressure to the control volume, and wherein responsive to a pressure in the control volume falling below a limit value due to venting of air from the control volume, the resetting assembly is operable to prevent actuation of a workpiece contact element from causing a valve piston to move to an actuation position until a trigger lever is released.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: January 18, 2022
    Assignee: Illinois Tool Works Inc.
    Inventors: Torsten Weigmann, Klaus Von Soest, Olaf Haehndel
  • Publication number: 20210339369
    Abstract: A drive-in tool for driving fasteners into a workpiece, wherein the tool comprises in particular: a safety device (8) which is coupled with the trigger element (6) and is set up to bring about a transfer of the drive-in tool (1) from a trip-ready state (100) into a secured state (101) after expiry (820) of a delay time which proceeds from an activation (810) of the safety device (8), wherein the safety device (8) comprises a control volume (15), wherein the safety device (8) comprises an activation element (33) which is changeable between a first and a second position by way of the trigger element (6), wherein in the first position of the activation element (33) a first pneumatic connection is defined between the control volume (15) and the gas pressure source connection (23), which is hereafter referred to as charging connection (27.
    Type: Application
    Filed: July 15, 2021
    Publication date: November 4, 2021
    Inventor: Olaf Hähndel
  • Patent number: 11065747
    Abstract: A drive-in tool for driving fasteners into a workpiece, wherein the tool comprises in particular: a safety device for transferring the drive-in tool from a trip-ready state into a secured state after expiry of a delay, wherein the safety device comprises a control volume and an activation element, wherein in the first position of the activation element a charging connection is defined between the control volume and the gas pressure source connection, and wherein in the second position of the activation element a discharging connection is defined between the control volume and a pressure sink, wherein one connection from the charging connection and the discharging connection comprises a smallest cross-sectional flow area which, together with a gas pressure of the gas pressure source, determines the delay time of the safety device. The present disclosure also relates to a corresponding method for operating a drive-in tool.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: July 20, 2021
    Assignee: Illinois Tool Works Inc.
    Inventor: Olaf Hähndel
  • Publication number: 20200269403
    Abstract: This relates to a driving tool for driving fastening means, nails/staples, into a workpiece, a trigger lever, which can be actuated manually, and a workpiece contact element, which can be actuated by placing the tool onto the workpiece, the tool operates in a single shot mode, in which each individual sequence of an actuation of the workpiece contact element with subsequent actuation of the trigger lever triggers a driving-in cycle, the tool operates in a bump firing mode, in which, with the trigger lever continuously actuated, each individual actuation of the workpiece contact element triggers a driving-in cycle, a resetting assembly providing, by means of which the tool is resettable from the bump firing mode into single shot mode in an automatic, time-controlled resetting operation. It is proposed that a signaling assembly, which emits a feedback signal to the user before, after or during each automatic resetting operation, is provided.
    Type: Application
    Filed: May 14, 2020
    Publication date: August 27, 2020
    Inventors: Torsten Weigmann, Klaus Von Soest, Olaf Haehndel
  • Publication number: 20200215673
    Abstract: Various embodiments of the present disclosure provide a combustion-powered The invention relates to a driving tool for driving fastening means, in particular nails or staples, into a workpiece, an actuator unit being provided, by means of which the fastening means can be driven into the workpiece in driving-in cycles, a triggering assembly being provided, by means of which the driving-in cycles of the actuator unit can be triggered, the triggering assembly having a trigger lever, which can be actuated manually, and a workpiece contact element, which can be actuated by placing the driving tool onto the workpiece, the driving tool being able to operate in a single shot mode, in which each individual sequence of an actuation of the workpiece contact element with subsequent actuation of the trigger lever triggers a driving-in cycle, the driving tool being able to operate in a bump firing mode, in which, with the trigger lever continuously actuated, each individual actuation of the workpiece contact element trigge
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Inventors: Torsten Weigmann, Klaus Von Soest, Olaf Haehndel
  • Patent number: 10688641
    Abstract: This relates to a driving tool for driving fastening means, nails/staples, into a workpiece, a trigger lever, which can be actuated manually, and a workpiece contact element, which can be actuated by placing the tool onto the workpiece, the tool operates in a single shot mode, in which each individual sequence of an actuation of the workpiece contact element with subsequent actuation of the trigger lever triggers a driving-in cycle, the tool operates in a bump firing mode, in which, with the trigger lever continuously actuated, each individual actuation of the workpiece contact element triggers a driving-in cycle, a resetting assembly providing, by means of which the tool is resettable from the bump firing mode into single shot mode in an automatic, time-controlled resetting operation. It is proposed that a signaling assembly, which emits a feedback signal to the user before, after or during each automatic resetting operation, is provided.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: June 23, 2020
    Assignee: Illinois Tool Works Inc.
    Inventors: Torsten Weigmann, Klaus Von Soest, Olaf Haehndel
  • Patent number: 10596690
    Abstract: This disclosure relates to a driving tool for driving fastening means into a workpiece, an actuator unit allows the fastening means to be driven into the workpiece in driving-in cycles, a triggering assembly triggers the driving-in cycles of the actuator unit and a workpiece contact element, which is actuated by placing the driving tool onto the workpiece. The tool is operable in single shot mode. Each sequence of an actuation of the workpiece contact element with subsequent actuation of a trigger lever triggers a driving-in cycle. The tool is operable in a bump firing mode, in which, with the trigger lever continuously actuated, each actuation of the workpiece contact element triggers a driving-in cycle, a resetting assembly, which can be activated in the bump firing mode and, after a delay time starting from the activation, results in transferring the tool from the bump firing mode into the single shot mode.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: March 24, 2020
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Torsten Weigmann, Klaus Von Soest, Olaf Haehndel
  • Patent number: 9975229
    Abstract: The invention is directed to a nail driving device, comprising a driving ram having a drive unit and a feed mechanism for a nail strip that is transportable in a transporting direction, wherein a guide member and/or a transporting member of the feed mechanism acts in operation on the receiving ribbon. It is proposed that the guide member and/or transporting member is formed to operate on receiving ribbons of different widths.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: May 22, 2018
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Olaf Haehndel, Torsten Weigmann
  • Publication number: 20160136797
    Abstract: The invention relates to a driving tool for driving fastening means, in particular nails or staples, into a workpiece, a trigger lever, which can be actuated manually, and a workpiece contact element, which can be actuated by placing the driving tool onto the workpiece, being provided, the driving tool being able to operate in a single shot mode, in which each individual sequence of an actuation of the workpiece contact element with subsequent actuation of the trigger lever triggers a driving-in cycle, the driving tool being able to operate in a bump firing mode, in which, with the trigger lever continuously actuated, each individual actuation of the workpiece contact element triggers a driving-in cycle, a resetting assembly being provided, by means of which the driving tool can be reset from the bump firing mode into the single shot mode in an automatic, time-controlled resetting operation.
    Type: Application
    Filed: April 23, 2014
    Publication date: May 19, 2016
    Inventors: Torsten WEIGMANN, Klaus VON SOEST, Olaf HAEHNDEL
  • Publication number: 20160114470
    Abstract: The invention relates to a driving tool for driving fastening means, in particular nails or staples, into a workpiece, an actuator unit being provided, by means of which the fastening means can be driven into the workpiece in driving-in cycles, a triggering assembly being provided, by means of which the driving-in cycles of the actuator unit can be triggered, the triggering assembly having a trigger lever, which can be actuated manually, and a workpiece contact element, which can be actuated by placing the driving tool onto the workpiece, the driving tool being able to operate in a single shot mode, in which each individual sequence of an actuation of the workpiece contact element with subsequent actuation of the trigger lever triggers a driving-in cycle, the driving tool being able to operate in a bump firing mode, in which, with the trigger lever continuously actuated, each individual actuation of the workpiece contact element triggers a driving-in cycle, a resetting assembly being provided, which can be ac
    Type: Application
    Filed: April 23, 2014
    Publication date: April 28, 2016
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventors: Torsten WEIGMANN, Klaus VON SOEST, Olaf HAEHNDEL
  • Publication number: 20150136827
    Abstract: The invention is directed to a nail driving device, comprising a driving ram having a drive unit and a feed mechanism for a nail strip that is transportable in a transporting direction, wherein a guide member and/or a transporting member of the feed mechanism acts in operation on the receiving ribbon. It is proposed that the guide member and/or transporting member is formed to operate on receiving ribbons of different widths.
    Type: Application
    Filed: May 2, 2013
    Publication date: May 21, 2015
    Applicant: Illinois Tool Works Inc.
    Inventors: Olaf Haehndel, Torsten Weigmann