Patents by Inventor David A. Hempe

David A. Hempe 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).

  • Patent number: 11827394
    Abstract: A cable tie application tool is described that includes an electro-mechanical tensioning system. When the electro-mechanical tensioning system is controlled by a processor to tighten a cable, a reactionary force through a drive nut that is pivotally mounted to a tension bar can be monitored and measured by a strain gauge, a load cell, or other sensing system. This reactionary force is an indication of tension on the cable tie and is monitored by the processor until the tension reaches a predetermined tension, at which point, the processor causes a motor in the tensioning system to stop increasing the tension on the cable tie. The processor activates a cut-off system to cut the cable tie that has been tightened to the predetermined tension.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: November 28, 2023
    Assignee: HellermannTyton Corporation
    Inventors: David A. Hempe, Roger D. Neitzell, Peter David Joseph, Blaine G. Kuehmichel, Jonathan Paul Loeck, Nicholas Alexander Matiash
  • Publication number: 20230060775
    Abstract: A cable tie application tool is described that includes an electro-mechanical tensioning system. When the electro-mechanical tensioning system is controlled by a processor to tighten a cable, a reactionary force through a drive nut that is pivotally mounted to a tension bar can be monitored and measured by a strain gauge, a load cell, or other sensing system. This reactionary force is an indication of tension on the cable tie and is monitored by the processor until the tension reaches a predetermined tension, at which point, the processor causes a motor in the tensioning system to stop increasing the tension on the cable tie. The processor activates a cut-off system to cut the cable tie that has been tightened to the predetermined tension.
    Type: Application
    Filed: October 26, 2022
    Publication date: March 2, 2023
    Inventors: David A. Hempe, Roger D. Neitzell, Peter David Joseph, Blaine G. Kuehmichel, Jonathan Paul Loeck, Nicholas Alexander Matiash
  • Patent number: 11511894
    Abstract: A cable tie application tool is described that includes an electro-mechanical tensioning system. When the electro-mechanical tensioning system is controlled by a processor to tighten a cable, a reactionary force through a drive nut that is pivotally mounted to a tension bar can be monitored and measured by a strain gauge, a load cell, or other sensing system. This reactionary force is an indication of tension on the cable tie and is monitored by the processor until the tension reaches a predetermined tension, at which point, the processor causes a motor in the tensioning system to stop increasing the tension on the cable tie. The processor activates a cut-off system to cut the cable tie that has been tightened to the predetermined tension.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: November 29, 2022
    Assignee: HellermannTyton Corporation
    Inventors: David A. Hempe, Roger D. Neitzell, Peter David Joseph, Blaine G. Kuehmichel, Jonathan Paul Loeck, Nicholas Alexander Matiash
  • Publication number: 20210094713
    Abstract: A cable tie application tool is described that includes an electro-mechanical tensioning system. When the electro-mechanical tensioning system is controlled by a processor to tighten a cable, a reactionary force through a drive nut that is pivotally mounted to a tension bar can be monitored and measured by a strain gauge, a load cell, or other sensing system. This reactionary force is an indication of tension on the cable tie and is monitored by the processor until the tension reaches a predetermined tension, at which point, the processor causes a motor in the tensioning system to stop increasing the tension on the cable tie. The processor activates a cut-off system to cut the cable tie that has been tightened to the predetermined tension.
    Type: Application
    Filed: September 1, 2020
    Publication date: April 1, 2021
    Inventors: David A. Hempe, Roger D. Neitzell, Peter David Joseph, Blaine G. Kuehmichel, Jonathan Paul Loeck, Nicholas Alexander Matiash
  • Patent number: 7658012
    Abstract: A reciprocating saw generally includes a housing and a motor supported by the housing. A spindle is mounted for reciprocation relative to the housing, the spindle having a front end for supporting a saw blade and being movable through a cutting stroke and a return stroke, and the cutting stroke may have a stroke length. A rotary member may be supported for rotation about a rotary axis. The saw may further include an adjusting assembly operable to adjust the stroke length of the spindle. Also, the saw may include a counterweight supported for movement relative to the housing, a movement of the counterweight substantially balancing at least a portion of movement of the spindle, and an adjusting assembly operable to adjust the movement of the counterweight.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: February 9, 2010
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Thomas P. James, Roger D. Neitzell, David A. Hempe
  • Patent number: 7521826
    Abstract: A method of assembling a power tool, a power tool, a method of assembling an electrical device, and an electrical device includes a switched reluctance motor. The electrical device is preferably a hand-held power tool, however, any type of electrical device that includes a switched reluctance motor may benefit from any number of aspects of the invention. In one independent aspect, the invention provides a construction that reduces tolerance stack-up. In another independent aspect, the invention provides a self-contained electronics package that plugs into a switched reluctance motor to provide control operation of the switched reluctance motor. In another independent aspect, the invention provides enhanced cooling that increases the efficiency of the electrical device using a switched reluctance motor. In another independent aspect, the invention provides an encapsulated magnet that allows for contaminant free motor control over the life of the SR motor.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: April 21, 2009
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: David A. Hempe, Gary D. Meyer, Roderick N. Ebben, Jeffrey M. Brozek
  • Publication number: 20060175913
    Abstract: A method of assembling a power tool, a power tool, a method of assembling an electrical device, and an electrical device includes a switched reluctance motor. The electrical device is preferably a hand-held power tool, however, any type of electrical device that includes a switched reluctance motor may benefit from any number of aspects of the invention. In one independent aspect, the invention provides a construction that reduces tolerance stack-up. In another independent aspect, the invention provides a self-contained electronics package that plugs into a switched reluctance motor to provide control operation of the switched reluctance motor. In another independent aspect, the invention provides enhanced cooling that increases the efficiency of the electrical device using a switched reluctance motor. In another independent aspect, the invention provides an encapsulated magnet that allows for contaminant free motor control over the life of the SR motor.
    Type: Application
    Filed: January 13, 2006
    Publication date: August 10, 2006
    Inventors: David Hempe, Gary Meyer, Roderick Ebben, Jeffrey Brozek
  • Patent number: 7064462
    Abstract: A method of assembling a power tool, a power tool, a method of assembling an electrical device, and an electrical device includes a switched reluctance motor. The electrical device is preferably a hand-held power tool, however, any type of electrical device that includes a switched reluctance motor may benefit from any number of aspects of the invention. In one independent aspect, the invention provides a construction that reduces tolerance stack-up. In another independent aspect, the invention provides a self-contained electronics package that plugs into a switched reluctance motor to provide control operation of the switched reluctance motor. In another independent aspect, the invention provides enhanced cooling that increases the efficiency of the electrical device using a switched reluctance motor. In another independent aspect, the invention provides an encapsulated magnet that allows for contaminant free motor control over the life of the SR motor.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: June 20, 2006
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: David A. Hempe, Gary D. Meyer, Roderick N. Ebben, Jeffrey M. Brozek
  • Publication number: 20060104735
    Abstract: Carrying systems, connecting systems and methods. The system connects a power tool and a component. In some constructions and in some aspects, the power tool includes a housing and a U-shaped receptacle defined by the housing. In some constructions and in some aspects, the component includes a stud selectively engageable with the receptacle to connect the power tool and the component. A locking mechanism is positioned within the receptacle and includes a cam. The locking mechanism is engageable with the stud to restrict movement of the stud with respect to the receptacle. The stud includes a recess at an end of the stud. The cam is selectively engageable with the recess to retain the stud within the receptacle. The cam is movable between a lock position and a released position. In the locked position, the cam extends into the recess and engages the stud. In the released position, the cam is retracted from the recess and is disengaged with the stud.
    Type: Application
    Filed: March 14, 2003
    Publication date: May 18, 2006
    Inventors: Jeffrey Zeiler, Thomas James, Pamela Stegehuis, David Hempe, Burton Yanke
  • Publication number: 20040187324
    Abstract: A reciprocating saw generally includes a housing and a motor supported by the housing. A spindle is mounted for reciprocation relative to the housing, the spindle having a front end for supporting a saw blade and being movable through a cutting stroke and a return stroke, and the cutting stroke may have a stroke length. A rotary member may be supported for rotation about a rotary axis. The saw may further include an adjusting assembly operable to adjust the stroke length of the spindle. Also, the saw may include a counterweight supported for movement relative to the housing, a movement of the counterweight substantially balancing at least a portion of movement of the spindle, and an adjusting assembly operable to adjust the movement of the counterweight.
    Type: Application
    Filed: December 22, 2003
    Publication date: September 30, 2004
    Inventors: Thomas P. James, Roger D. Neitzell, David A. Hempe
  • Publication number: 20030163924
    Abstract: A method of assembling a power tool, a power tool, a method of assembling an electrical device, and an electrical device includes a switched reluctance motor. The electrical device is preferably a hand-held power tool, however, any type of electrical device that includes a switched reluctance motor may benefit from any number of aspects of the invention. In one independent aspect, the invention provides a construction that reduces tolerance stack-up. In another independent aspect, the invention provides a self-contained electronics package that plugs into a switched reluctance motor to provide control operation of the switched reluctance motor. In another independent aspect, the invention provides enhanced cooling that increases the efficiency of the electrical device using a switched reluctance motor. In another independent aspect, the invention provides an encapsulated magnet that allows for contaminant free motor control over the life of the SR motor.
    Type: Application
    Filed: February 4, 2003
    Publication date: September 4, 2003
    Inventors: David A. Hempe, Gary D. Meyer, Roderick N. Ebben, Jeffrey M. Brozek