Patents by Inventor Bernhard Diessner
Bernhard Diessner 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: 10208593Abstract: The invention relates to a bit holder for an earth working machine, in particular a road milling machine, that comprises a bit receptacle in the region of a working side of a support member and that indirectly or directly carries an insertion projection on an insertion projection side of the support member, the support member comprising two stripping surfaces [first or second stripping surfaces] that form a stripping surface pair and are at an angle to one another. In order to achieve a stable and long-lived configuration with such a bit holder, provision is made according to the present invention that the support member comprises at least one further stripping surface that is at an angle to the two stripping surfaces of the stripping surface pair.Type: GrantFiled: July 31, 2017Date of Patent: February 19, 2019Assignee: Wirtgen GmbHInventors: Thomas Lehnert, Karsten Buhr, Cyrus Barimani, Günter Hähn, Karl Kammerer, Markus Roth, Bernhard Diessner
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Publication number: 20180016898Abstract: The invention relates to a bit holder for an earth working machine, in particular a road milling machine, that comprises a bit receptacle in the region of a working side of a support member and that indirectly or directly carries an insertion projection on an insertion projection side of the support member, the support member comprising two stripping surfaces [first or second stripping surfaces] that form a stripping surface pair and are at an angle to one another. In order to achieve a stable and long-lived configuration with such a bit holder, provision is made according to the present invention that the support member comprises at least one further stripping surface that is at an angle to the two stripping surfaces of the stripping surface pair.Type: ApplicationFiled: July 31, 2017Publication date: January 18, 2018Inventors: Thomas Lehnert, Karsten Buhr, Cyrus Barimani, Günter Hähn, Karl Kammerer, Markus Roth, Bernhard Diessner
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Patent number: 9765620Abstract: The subject matter of the invention is a bit holder for an earth working machine, in particular a road milling machine, having a support member onto which an insertion projection is indirectly or directly attached on an insertion projection side, the insertion projection comprising at least one convex abutment surface and one pressure surface. In a bit holder of this kind, working forces can be dissipated in stress-optimized fashion into an attached base part when provision is made that the insertion projection comprises two convex abutment surfaces that are arranged at a distance from one another.Type: GrantFiled: December 21, 2015Date of Patent: September 19, 2017Assignee: Wirtgen GmbHInventors: Thomas Lehnert, Karsten Buhr, Martin Lenz, Cyrus Barimani, Günter Hähn, Karl Kammerer, Markus Roth, Bernhard Diessner
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Patent number: 9739145Abstract: The invention relates to a bit holder for an earth working machine, in particular a road milling machine, that comprises a bit receptacle in the region of a working side of a support member and that indirectly or directly carries an insertion projection on an insertion projection side of the support member, the support member comprising two stripping surfaces [first or second stripping surfaces] that form a stripping surface pair and are at an angle to one another. In order to achieve a stable and long-lived configuration with such a bit holder, provision is made according to the present invention that the support member comprises at least one further stripping surface that is at an angle to the two stripping surfaces of the stripping surface pair.Type: GrantFiled: January 27, 2016Date of Patent: August 22, 2017Assignee: Wirtgen GmbHInventors: Thomas Lehnert, Karsten Buhr, Cyrus Barimani, Günter Hähn, Karl Kammerer, Markus Roth, Bernhard Diessner
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Patent number: 9719348Abstract: The invention relates to a bit holder for an earth working machine, in particular a road milling machine, having a support member onto which an insertion projection is indirectly or directly attached on an insertion projection side, the support member comprising two first and/or two second stripping surfaces that are at an angle to one another, and the support member having a working side that comprises a bit receptacle. In order to achieve a stable and long-lived configuration for such a bit holder, provision is made according to the present invention that the first and/or second stripping surfaces diverge from the insertion projection side toward the working side.Type: GrantFiled: September 24, 2015Date of Patent: August 1, 2017Assignee: Wirtgen GmbHInventors: Thomas Lehnert, Karsten Buhr, Cyrus Barimani, Günter Hähn, Karl Kammerer, Markus Roth, Bernhard Diessner
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Publication number: 20160208606Abstract: The invention relates to a bit holder for an earth working machine, in particular a road milling machine, that comprises a bit receptacle in the region of a working side of a support member and that indirectly or directly carries an insertion projection on an insertion projection side of the support member, the support member comprising two stripping surfaces [first or second stripping surfaces] that form a stripping surface pair and are at an angle to one another. In order to achieve a stable and long-lived configuration with such a bit holder, provision is made according to the present invention that the support member comprises at least one further stripping surface that is at an angle to the two stripping surfaces of the stripping surface pair.Type: ApplicationFiled: January 27, 2016Publication date: July 21, 2016Inventors: Thomas Lehnert, Karsten Buhr, Cyrus Barimani, Günter Hähn, Karl Kammerer, Markus Roth, Bernhard Diessner
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Publication number: 20160177717Abstract: The subject matter of the invention is a bit holder for an earth working machine, in particular a road milling machine, having a support member onto which an insertion projection is indirectly or directly attached on an insertion projection side, the insertion projection comprising at least one convex abutment surface and one pressure surface. In a bit holder of this kind, working forces can be dissipated in stress-optimized fashion into an attached base part when provision is made that the insertion projection comprises two convex abutment surfaces that are arranged at a distance from one another.Type: ApplicationFiled: December 21, 2015Publication date: June 23, 2016Inventors: Thomas Lehnert, Karsten Buhr, Martin Lenz, Cyrus Barimani, Günter Hähn, Karl Kammerer, Markus Roth, Bernhard Diessner
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Publication number: 20160076370Abstract: The invention relates to a bit holder for an earth working machine, in particular a road milling machine, having a support member onto which an insertion projection is indirectly or directly attached on an insertion projection side, the support member comprising two first and/or two second stripping surfaces that are at an angle to one another, and the support member having a working side that comprises a bit receptacle. In order to achieve a stable and long-lived configuration for such a bit holder, provision is made according to the present invention that the first and/or second stripping surfaces diverge from the insertion projection side toward the working side.Type: ApplicationFiled: September 24, 2015Publication date: March 17, 2016Inventors: Thomas Lehnert, Karsten Buhr, Cyrus Barimani, Günter Hähn, Karl Kammerer, Markus Roth, Bernhard Diessner
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Patent number: 9267373Abstract: The invention relates to a bit holder having an insertion projection and having a bore-shaped bit receptacle that has a longitudinal center axis, a convexly curved support surface being provided on a base part. A bit holder of this kind can be implemented in compact and stable fashion in particular by the fact that the longitudinal center axis of the bit receptacle intersects the support surface.Type: GrantFiled: December 2, 2011Date of Patent: February 23, 2016Assignee: Wirtgen GmbHInventors: Karl Kammerer, Markus Roth, Bernhard Diessner, Thomas Lehnert, Karsten Buhr, Martin Lenz, Cyrus Barimani, Günter Hähn
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Patent number: 9260965Abstract: The invention relates to a bit holder for an earth working machine, in particular a road milling machine, that comprises a bit receptacle in the region of a working side of a support member and that indirectly or directly carries an insertion projection on an insertion projection side of the support member, the support member comprising two stripping surfaces [first or second stripping surfaces] that form a stripping surface pair and are at an angle to one another. In order to achieve a stable and long-lived configuration with such a bit holder, provision is made according to the present invention that the support member comprises at least one further stripping surface that is at an angle to the two stripping surfaces of the stripping surface pair.Type: GrantFiled: June 28, 2012Date of Patent: February 16, 2016Assignee: Wirtgen GmbHInventors: Thomas Lehnert, Karsten Buhr, Cyrus Barimani, Günter Hähn, Karl Kammerer, Markus Roth, Bernhard Diessner
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Patent number: 9228434Abstract: The subject matter of the invention is a bit holder for an earth working machine, in particular a road milling machine, having a support member onto which an insertion projection is indirectly or directly attached on an insertion projection side, the insertion projection comprising at least one convex abutment surface and one pressure surface. In a bit holder of this kind, working forces can be dissipated in stress-optimized fashion into an attached base part when provision is made that the insertion projection comprises two convex abutment surfaces that are arranged at a distance from one another.Type: GrantFiled: December 2, 2011Date of Patent: January 5, 2016Assignee: Wirtgen GmbHInventors: Thomas Lehnert, Karsten Buhr, Martin Lenz, Cyrus Barimani, Günter Hähn, Karl Kammerer, Markus Roth, Bernhard Diessner
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Patent number: 9151157Abstract: The invention relates to a bit holder for an earth working machine, in particular a road milling machine, having a support member onto which an insertion projection is indirectly or directly attached on an insertion projection side, the support member comprising two first and/or two second stripping surfaces that are at an angle to one another, and the support member having a working side that comprises a bit receptacle. In order to achieve a stable and long-lived configuration for such a bit holder, provision is made according to the present invention that the first and/or second stripping surfaces diverge from the insertion projection side toward the working side.Type: GrantFiled: December 2, 2011Date of Patent: October 6, 2015Assignee: Wirtgen GmbHInventors: Thomas Lehnert, Karsten Buhr, Cyrus Barimani, Günter Hähn, Karl Kammerer, Markus Roth, Bernhard Diessner
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Publication number: 20130307318Abstract: The invention relates to a bit holder having an insertion projection and having a bore-shaped bit receptacle that has a longitudinal center axis, a convexly curved support surface being provided on a base part. A bit holder of this kind can be implemented in compact and stable fashion in particular by the fact that the longitudinal center axis of the bit receptacle intersects the support surface.Type: ApplicationFiled: December 2, 2011Publication date: November 21, 2013Applicants: BETEK GmbH & Co. KG, WIRTGEN GmbHInventors: Karl Kammerer, Markus Roth, Bernhard Diessner
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Patent number: 5683144Abstract: A cylindrical cutting element for a cutting machine which includes base ps arranged at a uniform distance from each other. A chisel holder which receives an exchangeable chisel is secured with respect to each base element. The chisel holder has a plug connector which allows the chisel holder to be inserted into a plug receiver of the base element, where it is held by a pressure screw on the base part that grips the plug connector. To relieve the plug connector from the forces acting on the chisel, the base part has a projection which extends in an approximately parallel direction to the running direction of the cutting element and a stop that follows the projection in the running direction and forms an angle therewith. The stop limits the insertion of the chisel holder into the base element and absorbs forces transmitted through the chisel to the chisel holder.Type: GrantFiled: July 8, 1996Date of Patent: November 4, 1997Assignees: Wirtgen GmbH, Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon GmbH & Co. KGInventors: Karl Kammerer, Bernhard Diessner, Dieter Simons, Bernd Holl
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Patent number: 5378050Abstract: A cylinder-shaped cutting body for a coal cutting machine with a clearing and loading worm or clearing screw comprising basic parts disposed at even spacings and placed on the cutting body surface so that it projects away from the cutting body surface whereby a chisel holder interchangeably receiving a chisel can be connected to each basic part. The chisel holder has a plug-in neck which, in the direction of a chisel receptacle, has a shoulder for limiting the insertion movement of the plug-in neck into a plug-in receptacle of the basic part. Looking in the direction of running of the cutting body, behind the chisel receptacle of the chisel holder, a pressure screw, accessible from the top of the basic part, is disposed in the basic part and is adjustable with respect to the plug-in neck of the chisel holder so that it exerts a retracting force on the plug-in neck of the chisel holder.Type: GrantFiled: August 31, 1993Date of Patent: January 3, 1995Assignee: BETEK Bergbau- und Hartmetalltechnik Karl-HeinzInventors: Karl Kammerer, Bernhard Diessner
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Patent number: D667854Type: GrantFiled: October 10, 2011Date of Patent: September 25, 2012Assignee: BETEK GmbH & Co. KGInventors: Karl Kammerer, Markus Roth, Bernhard Diessner
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Patent number: D667855Type: GrantFiled: October 10, 2011Date of Patent: September 25, 2012Assignee: BETEK GmbH & Co. KGInventors: Karl Kammerer, Markus Roth, Bernhard Diessner
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Patent number: D667856Type: GrantFiled: October 10, 2011Date of Patent: September 25, 2012Assignee: BETEK GmbH & Co. KGInventors: Karl Kammerer, Markus Roth, Bernhard Diessner