Patents by Inventor Michael Rothenwaender
Michael Rothenwaender 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).
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Patent number: 10575923Abstract: Different mechanical drive devices for a medical, dental or surgical tool are described that are designed to put the tool into an oscillating, rotational motion, wherein the oscillating, rotational motion comprises an alternating rotation of the tool by a first angle of rotation in a first rotational direction and by a second angle of rotation in a second rotational direction substantially opposed to the first rotational direction, wherein the first and second angles of rotation may have different values, so that during multiple sequential rotations in the first and second rotational directions, the tool cumulatively experiences a rotational motion in a preferred direction.Type: GrantFiled: November 17, 2015Date of Patent: March 3, 2020Assignee: W&H Dentalwerk Bürmoos GmbHInventors: Michael Rothenwaender, Hermann Rehrl, Josef Spitzauer, Karlheinz Eder
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Patent number: 10092370Abstract: A hand instrument, comprising: a tool-holding device for fastening a treatment tool on the hand instrument, a driveshaft for transmitting a driving movement to the tool-holding device and a stroke gear which is designed to induce the tool-holding device in a stroke movement. According to a first embodiment the hand instrument further has a rotary gear which is designed to induce the tool-holding device to a rotational movement, wherein a drive-side element of the rotary gear and a drive-side element of the stroke gear are arranged jointly on the driveshaft. According to a second embodiment the drive-side element of the stroke gear is designed such, that in a complete revolution of the drive-side element of the stroke gear the tool-holding device runs through more than a double stroke. According to another embodiment the drive-side element of the stroke gear is disposed concentrically around an axis of rotation of the driveshaft.Type: GrantFiled: February 19, 2015Date of Patent: October 9, 2018Assignee: W&H Dentalwerk Bürmoos GmbHInventors: Hannes Wagner, Karlheinz Eder, Michael Rothenwaender, Hermann Rehrl
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Patent number: 9989132Abstract: Various mechanical drive devices, mechanical gears, combinations thereof and medical or dental treatment devices with such mechanical drive devices or gears are described. The mechanical drive devices and mechanical gears convert a unidirectional rotational movement received by a motor drive into a multidirectional movement, so that a tool-holding device of the treatment device can be induced to a multidirectional movement, in particular to a, preferably simultaneous, lifting and rotating movement or to a lifting and oscillating rotational movement with a reduced rotational speed.Type: GrantFiled: May 21, 2014Date of Patent: June 5, 2018Assignee: W&H Dentalwerk Bürmoos GmbHInventors: Karlheinz Eder, Michael Rothenwaender, Josef Spitzauer
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Patent number: 9784289Abstract: A medical or dental fluid-driven handle with a control or regulation circuit for the control or regulation of the rotational speed of a rotary part to a predetermined rotational speed and methods are presented. The handle comprises a rotary part that can be set in rotary motion by a drive fluid, a fluid line carrying the drive fluid to or from the rotary part or a fluid branch line that is connected to a fluid line carrying the drive fluid, and a control or regulation circuit that is designed to control or regulate the rotational speed of the rotary part. An electrodynamic converter is driven by the rotary part for generating electrical energy. An actuator element is configured to act on the drive fluid and is electrically connected to the electrodynamic converter such that the actuator element is supplied with electrical energy generated by the electrodynamic converter.Type: GrantFiled: December 9, 2014Date of Patent: October 10, 2017Assignee: W&H Dentalwerk Bürmoos GmbHInventors: Michael Rothenwaender, Karl Schmiedlechner, Norbert Schatz
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Patent number: 9668752Abstract: Methods for controlling and/or regulating of a compressed-gas-operable medical or dental drive device and a control and/or regulating device for performing such methods are described. In one method according to a first embodiment, a rotor of the drive device is operated at an essentially constant rotational speed (n1) by adjusting the gas pressure and/or the flow rate of the compressed gas through a valve and the rotational speed is reduced on reaching a pressure value (p2) of the compressed gas which is lower than the maximum gas pressure (pmax) of the compressed gas. In the case of a method according to a second embodiment, the gas pressure of the compressed gas and the rotational speed of the rotor are altered on reaching a rotational speed limit value (n2, n3) of the rotor by adjusting the valve.Type: GrantFiled: October 25, 2013Date of Patent: June 6, 2017Assignee: W&H Dentalwerk Bürmoos GmbHInventors: Michael Rothenwaender, Karlheinz Eder, Christian Pruckner
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Publication number: 20160067011Abstract: Different mechanical drive devices for a medical, dental or surgical tool are described that are designed to put the tool into an oscillating, rotational motion, wherein the oscillating, rotational motion comprises an alternating rotation of the tool by a first angle of rotation in a first rotational direction and by a second angle of rotation in a second rotational direction substantially opposed to the first rotational direction, wherein the first and second angles of rotation may have different values, so that during multiple sequential rotations in the first and second rotational directions, the tool cumulatively experiences a rotational motion in a preferred direction.Type: ApplicationFiled: November 17, 2015Publication date: March 10, 2016Applicant: W&H Dentalwerk Bürmoos GmbHInventors: Michael Rothenwaender, Hermann Rehrl, Josef Spitzauer, Karlheinz Eder
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Publication number: 20150230881Abstract: A hand instrument, comprising: a tool-holding device for fastening a treatment tool on the hand instrument, a driveshaft for transmitting a driving movement to the tool-holding device and a stroke gear which is designed to induce the tool-holding device in a stroke movement. According to a first embodiment the hand instrument further has a rotary gear which is designed to induce the tool-holding device to a rotational movement, wherein a drive-side element of the rotary gear and a drive-side element of the stroke gear are arranged jointly on the driveshaft. According to a second embodiment the drive-side element of the stroke gear is designed such, that in a complete revolution of the drive-side element of the stroke gear the tool-holding device runs through more than a double stroke. According to another embodiment the drive-side element of the stroke gear is disposed concentrically around an axis of rotation of the driveshaft.Type: ApplicationFiled: February 19, 2015Publication date: August 20, 2015Applicant: W&H DENTALWERK BÜRMOOS GMBHInventors: Hannes Wagner, Karlheinz Eder, Michael Rothenwaender, Hermann Rehrl
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Publication number: 20150090472Abstract: A medical or dental fluid-driven handle with a control or regulation circuit for the control or regulation of the rotational speed of a rotary part to a predetermined rotational speed and methods are presented. The handle comprises a rotary part that can be set in rotary motion by a drive fluid, a fluid line carrying the drive fluid to or from the rotary part or a fluid branch line that is connected to a fluid line carrying the drive fluid, and a control or regulation circuit that is designed to control or regulate the rotational speed of the rotary part. An electrodynamic converter is driven by the rotary part for generating electrical energy. An actuator element is configured to act on the drive fluid and is electrically connected to the electrodynamic converter such that the actuator element is supplied with electrical energy generated by the electrodynamic converter.Type: ApplicationFiled: December 9, 2014Publication date: April 2, 2015Applicant: W&H Dentalwerk Bürmoos GmbHInventors: Michael Rothenwaender, Karl Schmiedlechner, Norbert Schatz
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Patent number: 8936104Abstract: A medical or dental, fluid-driven handle with a control or regulation circuit for the limiting, control or regulation to a maximum or predetermined rotational speed and a corresponding process are presented. The handle comprises a rotary part that can be set in rotary motion by a drive fluid, a fluid line carrying the drive fluid to or from the rotary part or a fluid branch line that is connected to a fluid line carrying drive fluid, and a control or regulation circuit designed to limit, control or regulate the rotational speed of the rotary part. An electrodynamic converter is driven by the rotary part for generating electrical energy and at least one actuator element is configured to act on the drive fluid. The actuator element is electrically connected to the electrodynamic converter such that it is supplied with electrical energy generated by the electrodynamic converter.Type: GrantFiled: October 27, 2011Date of Patent: January 20, 2015Assignee: W&H Dentalwerk Bürmoos GmbHInventors: Michael Rothenwaender, Karl Schmiedlechner, Norbert Schatz
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Publication number: 20140318287Abstract: Various mechanical drive devices, mechanical gears, combinations thereof and medical or dental treatment devices with such mechanical drive devices or gears are described. The mechanical drive devices and mechanical gears convert a unidirectional rotational movement received by a motor drive into a multidirectional movement, so that a tool-holding device of the treatment device can be induced to a multidirectional movement, in particular to a, preferably simultaneous, lifting and rotating movement or to a lifting and oscillating rotational movement with a reduced rotational speed.Type: ApplicationFiled: May 21, 2014Publication date: October 30, 2014Applicant: W&H Dentalwerk Bürmoos GmbHInventors: Karlheinz Eder, Michael Rothenwaender, Josef Spitzauer
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Publication number: 20140120496Abstract: Methods for controlling and/or regulating of a compressed-gas-operable medical or dental drive device and a control and/or regulating device for performing such methods are described. In one method according to a first embodiment, a rotor of the drive device is operated at an essentially constant rotational speed (n1) by adjusting the gas pressure and/or the flow rate of the compressed gas through a valve and the rotational speed is reduced on reaching a pressure value (p2) of the compressed gas which is lower than the maximum gas pressure (pmax) of the compressed gas. In the case of a method according to a second embodiment, the gas pressure of the compressed gas and the rotational speed of the rotor are altered on reaching a rotational speed limit value (n2, n3) of the rotor by adjusting the valve.Type: ApplicationFiled: October 25, 2013Publication date: May 1, 2014Inventors: Michael Rothenwaender, Karlheinz Eder, Christian Pruckner
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Patent number: 8500447Abstract: Medical treatment devices, such as dental treatment devices, include at least a drive unit for driving a tool configured to act on a treatment site, a light-emitting device and a cooling media dispensing device for dispensing at least one cooling medium onto a tool and/or a treatment site. The device can be controlled, such as with a controller, to substantially alternatingly operate the light-emitting device and the dispensing device, thereby intermittently illuminating the tool and/or the treatment site and dispensing cooling medium toward the tool and/or the treatment site, respectively, which provides a user with an improved view of the tool, the treatment site, or both.Type: GrantFiled: October 9, 2009Date of Patent: August 6, 2013Assignee: W&H Dentalwerk Bürmoos GmbHInventors: Michael Rothenwaender, Christoph Kment, Juergen Koelndorfer, Herbert Weissenboeck, Martin Milojkovic
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Patent number: 8324765Abstract: A fluid-operated medical or dental handle with a device for limiting the rotational speed to a maximum rotational speed value is disclosed. The handle comprises a rotating part that can be induced to rotation by a driving fluid for driving a tool connectable to the rotating part, an electrodynamic transducer driven by the rotating part for induction of an electric voltage, wherein the electrodynamic transducer has at least one coil and a magnetic element and at least one switch element for optional opening and closing of a circuit between the two ends of the at least one coil, so that with the circuit closed, an electric current and an induced magnetic field that decelerates the rotational speed of the rotating part and the tool connectable thereto can be induced in the coil of the electrodynamic transducer.Type: GrantFiled: August 25, 2009Date of Patent: December 4, 2012Assignee: W&H Dentalwerk Bürmoos GmbHInventors: Michael Rothenwaender, Christoph Kment, Juergen Koelndorfer, Wilhelm Brugger
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Publication number: 20120111590Abstract: A medical or dental, fluid-driven handle with a control or regulation circuit for the limiting, control or regulation to a maximum or predetermined rotational speed and a corresponding process are presented. The handle comprises a rotary part that can be set in rotary motion by a drive fluid, a fluid line carrying the drive fluid to or from the rotary part or a fluid branch line that is connected to a fluid line carrying drive fluid, and a control or regulation circuit designed to limit, control or regulate the rotational speed of the rotary part. An electrodynamic converter is driven by the rotary part for generating electrical energy and at least one actuator element is configured to act on the drive fluid. The actuator element is electrically connected to the electrodynamic converter such that it is supplied with electrical energy generated by the electrodynamic converter.Type: ApplicationFiled: October 27, 2011Publication date: May 10, 2012Inventors: Michael Rothenwaender, Karl Schmiedlechner, Norbert Schatz
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Publication number: 20110281232Abstract: A medical or dental handpiece comprises a grip sleeve, a handpiece head, an engagement element and a retaining member. The handpiece head comprises a head housing and a hollow connecting sleeve extending from the head housing for connecting the handpiece head to the grip sleeve. The engagement element has a first end positionable to extend through the grip sleeve and a second end engageable within an opening in the handpiece head. The retaining member is spaced proximally from the handpiece head. The first end of the engagement element is connectable with the retaining member to secure the second end of the engagement element against the handpiece head and to retain the grip sleeve around the engagement element and against the handpiece head.Type: ApplicationFiled: May 17, 2011Publication date: November 17, 2011Inventors: Juergen Brandner, Michael Rothenwaender
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Publication number: 20100092908Abstract: Medical treatment devices, such as dental treatment devices, comprise a drive unit for driving a tool configured to act on a treatment site, a light-emitting device and a cooling media dispensing device for dispensing at least one cooling medium onto a tool and/or a treatment site. The device can be controlled, such as with a controller, to substantially alternatingly operate the light-emitting device and the dispensing device, thereby intermittently illuminating the tool and/or the treatment site and dispensing cooling medium toward the tool and/or the treatment site, respectively, which provides a user with an improved view of the tool, the treatment site, or both.Type: ApplicationFiled: October 9, 2009Publication date: April 15, 2010Inventors: Michael Rothenwaender, Christoph Kment, Juergen Koelndorfer, Herbert Weissenboeck, Martin Milojkovic
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Publication number: 20100055642Abstract: A fluid-operated medical or dental handle with a device for limiting the rotational speed to a maximum rotational speed value is disclosed. The handle comprises a rotating part that can be induced to rotation by a driving fluid for driving a tool connectable to the rotating part, an electrodynamic transducer driven by the rotating part for induction of an electric voltage, wherein the electrodynamic transducer has at least one coil and a magnetic element and at least one switch element for optional opening and closing of a circuit between the two ends of the at least one coil, so that with the circuit closed, an electric current and an induced magnetic field that decelerates the rotational speed of the rotating part and the tool connectable thereto can be induced in the coil of the electrodynamic transducer.Type: ApplicationFiled: August 25, 2009Publication date: March 4, 2010Inventors: Michael Rothenwaender, Christoph Kment, Juergen Koelndorfer, Wilhelm Brugger