Patents by Inventor Johann Stempfle

Johann Stempfle 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: 12102493
    Abstract: The invention provides for a dental or surgical handpiece with an elongated handle sleeve (110) and a head piece (50) attached to the front end of the handle sleeve (110) that serves to to detachably receive a dental tool as well as for a clamping mechanism (20) formed in the head piece (50) to detachably hold the tool, the clamping mechanism (20) having a push-button (10) for actuating the clamping mechanism (20). The handpiece further has an RFID transponder (5) for identifying the handpiece. The push-button (10) consists of a heat-insulating electrically non-conductive plastic or m ceramic material with a plate-shaped recess that holds the RFID transponder (5). The push-button (10) has a flat round shape so that the RFID transponder (5), because of the equally flat round shape of its coil, can be integrated very well into it. Particularly advantageous ambient electrical conditions can be achieved for the RFID transponder as the push-button (10) is made of an electrically non-conductive material.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: October 1, 2024
    Assignee: KAVO DENTAL GMBH
    Inventors: Johannes Sauter, Johann Stempfle
  • Publication number: 20210386509
    Abstract: The invention provides for a dental or surgical handpiece with an elongated handle sleeve (110) and a head piece (50) attached to the front end of the handle sleeve (110) that serves to to detachably receive a dental tool as well as for a clamping mechanism (20) formed in the head piece (50) to detachably hold the tool, the clamping mechanism (20) having a push-button (10) for actuating the clamping mechanism (20). The handpiece further has an RFID transponder (5) for identifying the handpiece. The push-button (10) consists of a heat-insulating electrically non-conductive plastic or m ceramic material with a plate-shaped recess that holds the RFID transponder (5). The push-button (10) has a flat round shape so that the RFID transponder (5), because of the equally flat round shape of its coil, can be integrated very well into it. Particularly advantageous ambient electrical conditions can be achieved for the RFID transponder as the push-button (10) is made of an electrically non-conductive material.
    Type: Application
    Filed: September 25, 2019
    Publication date: December 16, 2021
    Inventors: Johannes Sauter, Johann Stempfle
  • Patent number: 9537376
    Abstract: An electric motor arrangement for a medical, especially dental, tool handle, which is extremely compact and resistant to sterilizing temperatures due to a plurality of advantageous embodiments. The electric motor arrangement is characterized by the following properties: the use of a light source based on SMD-LED or LED as a semiconductor chip; the shortening of the INTRAmatic coupling to between 20 mm and 25 mm; a hermetically extruded stator comprising integrated media tubes and molded connection sockets; the stator winding is embodied as a coil segment winding instead of an H winding or triangle; and the winding head has openings for media tubes.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: January 3, 2017
    Assignee: KALTENBACH & VOIGT GMBH
    Inventors: Josef Duesing, Alfons Mader, Johann Stempfle
  • Patent number: 9522049
    Abstract: An electric-motor arrangement for a medical, in particular dental, handpiece that has a motor housing and a rotor which is arranged in the motor housing so that it can be rotated about an axis via a first bearing and a second bearing. A stator is arranged around the rotor in relation to the axis. The first bearing is received in a first bearing flange, and the second bearing is received in a second bearing flange. Both bearing flanges are composed of metal and adjoin the motor housing directly by way of their circumferential faces. As a result, running noise and vibrations can be reduced. Moreover, premature wear and/or failure can be prevented.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: December 20, 2016
    Assignee: Kaltenbach & Voigt GmbH
    Inventors: Josef Duesing, Alfons Mader, Johann Stempfle
  • Patent number: 9318934
    Abstract: An electric motor arrangement for a medical, especially dental, tool handle, which is extremely compact and resistant to sterilizing temperatures due to a plurality of advantageous embodiments. The electric motor arrangement is characterized by the following properties: the use of a light source based on SMD-LED or LED as a semiconductor chip; the shortening of the INTRAmatic coupling to between 20 mm and 25 mm; a hermetically extruded stator comprising integrated media tubes and molded connection sockets; the stator winding is embodied as a coil segment winding instead of an H winding or triangle; and the winding head has openings for media tubes.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: April 19, 2016
    Assignee: KALTENBACH & VOIGT GMBH
    Inventors: Josef Duesing, Alfons Mader, Johann Stempfle
  • Publication number: 20150209454
    Abstract: A device and method for disinfecting, sterilizing, and/or looking after medical, in particular dental, instruments, comprising a rinsing chamber in which there are holders for receiving the instruments, wherein at least parts of the walls of the rinsing chamber or elements located in the rinsing chamber can be cooled.
    Type: Application
    Filed: January 28, 2014
    Publication date: July 30, 2015
    Applicant: KALTENBACH & VOIGT GMBH
    Inventors: Hans-Dieter Wiek, Johann Stempfle, Herbert Lott, Frank Saur
  • Patent number: 9017619
    Abstract: Device and method for disinfecting, sterilizing, and/or looking after medical, in particular dental, instruments, comprising a rinsing chamber in which there are holders for receiving the instruments, wherein at least parts of the walls of the rinsing chamber or elements located in the rinsing chamber can be cooled.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: April 28, 2015
    Assignee: Kaltenbach & Voigt GmbH
    Inventors: Hans-Dieter Wiek, Johann Stempfle, Herbert Lott, Frank Saur
  • Patent number: 8853895
    Abstract: The invention relates to an electric-motor arrangement for a medical, in particular dental, hand piece which has a motor housing (2) and a rotor (4) which is arranged in the motor housing (2) so that it can be rotated about an axis (L) via a first bearing (6) and a second bearing (8). A stator (14) is arranged around the rotor (4) in relation to the axis (L). The first bearing (6) is received in a first bearing flange (10), and the second bearing (8) is received in a second bearing flange (12). Both bearing flanges (10, 12) are composed of metal and adjoin the motor housing (2) directly by way of their circumferential faces (101, 121). As a result, running noise and vibrations can be reduced. Moreover, premature wear and/or failure can be prevented.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: October 7, 2014
    Assignee: Kaltenbach & Voigt GmbH
    Inventors: Josef Duesing, Alfons Mader, Johann Stempfle
  • Publication number: 20140093840
    Abstract: An electric-motor arrangement for a medical, in particular dental, handpiece that has a motor housing and a rotor which is arranged in the motor housing so that it can be rotated about an axis via a first bearing and a second bearing. A stator is arranged around the rotor in relation to the axis. The first bearing is received in a first bearing flange, and the second bearing is received in a second bearing flange. Both bearing flanges are composed of metal and adjoin the motor housing directly by way of their circumferential faces. As a result, running noise and vibrations can be reduced. Moreover, premature wear and/or failure can be prevented.
    Type: Application
    Filed: December 4, 2013
    Publication date: April 3, 2014
    Inventors: Josef Duesing, Alfons Mader, Johann Stempfle
  • Patent number: 8641981
    Abstract: A device for the disinfection, sterilization and/or maintenance of medical, in particular dental instruments. The device is optimized in various areas, facilitating the fully automatic, reliable and reproducible preparation of dental instruments.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: February 4, 2014
    Assignee: Kaltenbach & Voigt GmbH
    Inventors: Hans Heckenberger, Hans-Dieter Wiek, Herbert Lott, Frank Saur, Johann Stempfle
  • Publication number: 20130342050
    Abstract: An electric motor arrangement for a medical, especially dental, tool handle, which is extremely compact and resistant to sterilizing temperatures due to a plurality of advantageous embodiments. The electric motor arrangement is characterized by the following properties: the use of a light source based on SMD-LED or LED as a semiconductor chip; the shortening of the INTRAmatic coupling to between 20 mm and 25 mm; a hermetically extruded stator comprising integrated media tubes and molded connection sockets; the stator winding is embodied as a coil segment winding instead of an H winding or triangle; and the winding head has openings for media tubes.
    Type: Application
    Filed: August 29, 2013
    Publication date: December 26, 2013
    Applicant: KALTENBACH & VOIGT GMBH
    Inventors: Josef Duesing, Alfons Mader, Johann Stempfle
  • Publication number: 20120068557
    Abstract: An electric motor arrangement for a medical, especially dental, tool handle, which is extremely compact and resistant to sterilizing temperatures due to a plurality of advantageous embodiments. The electric motor arrangement is characterized by the following properties: the use of a light source based on SMD-LED or LED as a semiconductor chip; the shortening of the INTRAmatic coupling to between 20 mm and 25 mm; a hermetically extruded stator comprising integrated media tubes and molded connection sockets; the stator winding is embodied as a coil segment winding instead of an H winding or triangle; and the winding head has openings for media tubes.
    Type: Application
    Filed: March 19, 2010
    Publication date: March 22, 2012
    Applicant: Kaltenbach & Voigt GmbH
    Inventors: Josef Duesing, Alfons Mader, Johann Stempfle
  • Publication number: 20120058014
    Abstract: A device for disinfecting, sterilizing and/or maintaining medical, particularly dental, instruments comprises connecting units for connecting supply containers for media used by the device, in particular cleaning or care products, wherein the connecting units comprise control and/or identification means, which enable an identification of the supply container.
    Type: Application
    Filed: March 19, 2010
    Publication date: March 8, 2012
    Applicant: KALTENBACH & VOIGT GmbH
    Inventors: Hans Heckenberger, Hans-Dieter Wiek, Johann Stempfle, Bernd Gugel, Herbert Lott
  • Publication number: 20120058007
    Abstract: A device for the disinfection, sterilization and/or maintenance of medical, in particular dental instruments. The device is optimized in various areas, facilitating the fully automatic, reliable and reproducible preparation of dental instruments.
    Type: Application
    Filed: March 19, 2010
    Publication date: March 8, 2012
    Inventors: Hans Heckenberger, Hans-Dieter Wiek, Herbert Lott, Frank Saur, Johann Stempfle
  • Publication number: 20120048883
    Abstract: An assembly for removing a medium from a pressurized container, the assembly having a cut-off valve that is located on an outlet line for the container and a sensor for detecting the pressure prevailing in the container. The assembly is also provided with a control unit that controls the cut-off valve on the basis of the pressure determined by the sensor in order to remove the desired quantity of medium.
    Type: Application
    Filed: March 19, 2010
    Publication date: March 1, 2012
    Applicant: Kaltenbach & Voigt GmbH
    Inventors: Hans Heckenberger, Hans-Dieter Wiek, Johann Stempfle, Herbert Lott
  • Publication number: 20110269101
    Abstract: The invention relates to an electric-motor arrangement for a medical, in particular dental, hand piece which has a motor housing (2) and a rotor (4) which is arranged in the motor housing (2) so that it can be rotated about an axis (L) via a first bearing (6) and a second bearing (8). A stator (14) is arranged around the rotor (4) in relation to the axis (L). The first bearing (6) is received in a first bearing flange (10), and the second bearing (8) is received in a second bearing flange (12). Both bearing flanges (10, 12) are composed of metal and adjoin the motor housing (2) directly by way of their circumferential faces (101, 121). As a result, running noise and vibrations can be reduced. Moreover, premature wear and/or failure can be prevented.
    Type: Application
    Filed: April 22, 2011
    Publication date: November 3, 2011
    Applicant: Kaltenbach & Voigt GmbH
    Inventors: Josef Duesing, Alfons Mader, Johann Stempfle
  • Publication number: 20110206555
    Abstract: Device and method for disinfecting, sterilizing, and/or looking after medical, in particular dental, instruments, comprising a rinsing chamber in which there are holders for receiving the instruments, wherein at least parts of the walls of the rinsing chamber or elements located in the rinsing chamber can be cooled.
    Type: Application
    Filed: March 20, 2009
    Publication date: August 25, 2011
    Applicant: Kaltenbach & Voigt GmbH
    Inventors: Hans-Dieter Wiek, Johann Stempfle, Herbert Lott, Frank Saur
  • Publication number: 20110070553
    Abstract: A light source for use in a device, for example in a dental device, comprising a semiconductor element disposed in a housing wherein the semiconductor element comprises a light-emitting surface. The light source further comprises a socket that extends from a side of the semiconductor element opposite the light-emitting surface, the socket being provided for being placed in a frame located in the device, wherein the socket comprises contact elements and lines for power supply to the semiconductor element. The light source is particularly robust and long-lasting.
    Type: Application
    Filed: March 13, 2009
    Publication date: March 24, 2011
    Applicant: Kaltenbach & Voigt GmbH
    Inventors: Johann Stempfle, Bernd Gugel
  • Patent number: 6969156
    Abstract: A droplet generator for microdroplets (6), in particular a nozzle head for inkjet printers, having groups of piezo electrically actuated bending converters (1) disposed in a casing (11), wherein the bending converters (1) are disposed at a distance from each other and are guided in recesses separated by wall thicknesses, wherein liquid longitudinal channels (12) run below the flexible fingers (5) and having a liquid chamber (13) with a nozzle (7), can maintain a high liquid flow, in the case of sufficiently thick chamber walls, wherein the chamber walls do not allow a deformation to occur having in each case an edge bead (15) run around an opening (14) of the liquid chamber (13), wherein the edge bead (15) serves to limit a stroke of a respective one of the flexible fingers (5) and wherein a shaft (16) having at least the width of the flexible finger (5) and the height level of the base plate (1a) follows the opening (14).
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: November 29, 2005
    Assignee: Tally Computer Drucker GmbH
    Inventors: Gerhard Beurer, Thomas Franke, Gerhard Schmidt, Johann Stempfle
  • Publication number: 20030090549
    Abstract: A droplet generator for microdroplets (6), in particular a nozzle head for inkjet printers, having groups of piezo electrically actuated bending converters (1) disposed in a casing (11), wherein the bending converters (1) are disposed at a distance from each other and are guided in recesses separated by wall thicknesses, wherein liquid longitudinal channels (12) run below the flexible fingers (5) and having a liquid chamber (13) with a nozzle (7), can maintain a high liquid flow, in the case of sufficiently thick chamber walls, wherein the chamber walls do not allow a deformation to occur having in each case an edge bead (15) run around an opening (14) of the liquid chamber (13), wherein the edge bead (15) serves as a stroke limitation for the flexible finger (5) and wherein a shaft (16) having at least the width of the flexible finger (5) and the height level of the base plate (1a) follows the opening (14).
    Type: Application
    Filed: August 12, 2002
    Publication date: May 15, 2003
    Inventors: Gerhard Beurer, Thomas Franke, Gerhard Schmidt, Johann Stempfle