Patents by Inventor Bartholomaus Reisacher
Bartholomaus Reisacher 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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Publication number: 20220347812Abstract: In a device for recording deformation of a rotor head of a work spindle, at least one magnet is arranged on a stator or a rotor of the spindle, the magnetic field of which penetrates a measurement section of the rotor head, which is traversed by an axial flow of force during clamping of a tool or tool carrier on the rotor head by a tool clamping device arranged in the rotor. The rotor head has a magnetizability or magnetization that varies in the axial direction in its measurement section, and at least one direction-sensitive magnetic field sensor is arranged on the stator radially opposite the measurement section, which is connected to an evaluation device to determine axial deformation of the rotor head as a function of rotation angle from the strength of the magnetic field as a function of rotation angle recorded by the sensor during one revolution of the rotor.Type: ApplicationFiled: April 29, 2022Publication date: November 3, 2022Applicant: Ott-Jakob Spanntechnik GmbHInventors: Josef GREIF, Wolfgang BECHTELER, Bartholomäus REISACHER, JR., Florian MERZ
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Patent number: 10646929Abstract: A clamping device for clamping a workpiece or a tool or, more specifically, a tool holding fixture in a machine part of a machine tool includes a tension rod slidably mounted within the machine part; a clamping set movable by the tension rod between clamped and released positions; a tension spring dedicated to the tension rod so as to generate the pull-in force of the clamping set; and a release mechanism, by which the clamping set can be moved against the force of the tension spring into the released position by the tension rod. To make possible effective clamping at optimum force, the tension spring is clamped between first and second rod parts of the tension rod. The second rod part can move relative to the first rod part, and, as the clamping set moves into the released position, is compressed on both ends by the release mechanism by moving the two rod parts in opposite directions.Type: GrantFiled: March 28, 2018Date of Patent: May 12, 2020Assignee: Ott-Jakob Spanntechnik GmbHInventors: Josef Greif, Peter Mohr, Conrad Rösch, Bartholomäus Reisacher
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Patent number: 10124414Abstract: A clamping assembly for a clamping device for clamping of a workpiece or tool or a toolholder on machine component with a clamping cone movable axially via a tension rod and several clamping elements arranged spaced from each other in the peripheral direction on the outside of the clamping cone, which can be moved between a radially outer clamped position and a radially inner released position by axial movement of the tension rod. The clamping cone includes two parts movable opposite each other in the axial direction.Type: GrantFiled: December 6, 2016Date of Patent: November 13, 2018Assignee: OTT-JAKOB SPANNTECHNIK GMBHInventors: Josef Greif, Conrad Rösch, Bartholomäus Reisacher, Jr.
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Publication number: 20180290215Abstract: A clamping device for clamping a workpiece or a tool or, more specifically, a tool holding fixture in a machine part of a machine tool includes a tension rod slidably mounted within the machine part; a clamping set movable by the tension rod between clamped and released positions; a tension spring dedicated to the tension rod so as to generate the pull-in force of the clamping set; and a release mechanism, by which the clamping set can be moved against the force of the tension spring into the released position by the tension rod. To make possible effective clamping at optimum force, the tension spring is clamped between first and second rod parts of the tension rod. The second rod part can move relative to the first rod part, and, as the clamping set moves into the released position, is compressed on both ends by the release mechanism by moving the two rod parts in opposite directions.Type: ApplicationFiled: March 28, 2018Publication date: October 11, 2018Applicant: Ott-Jakob Spanntechnik GmbHInventors: Josef GREIF, Peter MOHR, Conrad RÖSCH, Bartholomäus REISACHER
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Patent number: 9962772Abstract: A clamping device for clamping a workpiece or a tool or a tool holder to a machine component of a machine tool, having an axially movable tension rod, a clamping assembly which can be moved by the tension rod between a clamped position and a released position, a spring assembly dedicated to the tension rod with a plurality of series-connected spring units for generating the clamping and draw-in force of the clamping assembly, and a releasing unit by which the clamping assembly can be moved by the tension rod against the force of the spring assembly into the released position. To ensure the most uniform load possible, the axial spring deflection of the spring units is limited by a stop when the spring assembly is compressed.Type: GrantFiled: October 27, 2016Date of Patent: May 8, 2018Assignee: OTT-JAKOB SPANNTECHNIK GMBHInventors: Josef Greif, Peter Mohr, Bartholomäus Reisacher, Jr.
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Patent number: 9931700Abstract: A clamping device for clamping a workpiece or a tool or a tool holder to a machine component of a machine tool, including an axially movable tension rod, a clamping assembly which can be moved by the tension rod between a clamped position and a released position, a spring assembly dedicated to the tension rod for generating the clamping and draw-in force of the clamping assembly, and a releasing unit by which the clamping assembly can be moved by the tension rod against the force of the spring assembly into the released position. The spring assembly has a minimum of one spring unit with a plurality of flexible spring members disposed between a first and a second spring holder, with the first and second spring holders being secured against torsion relative to the tension rod.Type: GrantFiled: October 27, 2016Date of Patent: April 3, 2018Assignee: OTT-JAKOB SPANNTECHNIK GMBHInventors: Josef Greif, Peter Mohr, Bartholomäus Reisacher, Jr.
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Publication number: 20170157679Abstract: A clamping assembly for a clamping device for clamping of a workpiece or tool or a toolholder on machine component with a clamping cone movable axially via a tension rod and several clamping elements arranged spaced from each other in the peripheral direction on the outside of the clamping cone, which can be moved between a radially outer clamped position and a radially inner released position by axial movement of the tension rod. The clamping cone includes two parts movable opposite each other in the axial direction.Type: ApplicationFiled: December 6, 2016Publication date: June 8, 2017Applicant: OTT-JAKOB SPANNTECHNIK GMBHInventors: Josef GREIF, Conrad RÖSCH, Bartholomäus Reisacher, JR.
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Publication number: 20170129020Abstract: A clamping device for clamping a workpiece or a tool or a tool holder to a machine component of a machine tool, having an axially movable tension rod, a clamping assembly which can be moved by the tension rod between a clamped position and a released position, a spring assembly dedicated to the tension rod with a plurality of series-connected spring units for generating the clamping and draw-in force of the clamping assembly, and a releasing unit by which the clamping assembly can be moved by the tension rod against the force of the spring assembly into the released position. To ensure the most uniform load possible, the axial spring deflection of the spring units is limited by a stop when the spring assembly is compressed.Type: ApplicationFiled: October 27, 2016Publication date: May 11, 2017Applicant: Ott-Jakob Spanntechnik GmbHInventors: Josef GREIF, Peter MOHR, Bartholomäus REISACHER, JR.
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Publication number: 20170129019Abstract: A clamping device for clamping a workpiece or a tool or a tool holder to a machine component of a machine tool, including an axially movable tension rod, a clamping assembly which can be moved by the tension rod between a clamped position and a released position, a spring assembly dedicated to the tension rod for generating the clamping and draw-in force of the clamping assembly, and a releasing unit by which the clamping assembly can be moved by the tension rod against the force of the spring assembly into the released position. The spring assembly has a minimum of one spring unit with a plurality of flexible spring members disposed between a first and a second spring holder, with the first and second spring holders being secured against torsion relative to the tension rod.Type: ApplicationFiled: October 27, 2016Publication date: May 11, 2017Applicant: Ott-Jakob Spanntechnik GmbHInventors: Josef GREIF, Peter MOHR, Bartholomäus REISACHER, JR.
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Patent number: 5022686Abstract: The rotating union for two different fluids comprises a hollow shaft (2) mounted rotatably in a stationary housing (1), with two separate axial throughflow channels (4, 5). A slide ring packing assembly is provided between the hollow shaft (2) and two separate inlet channels (9, 17) provided in the housing (1) for the two fluids. This includes a common slide ring (8) which is connected at its face to the hollow shaft (2) and comprises a central bore (8a) and several axial passages (8b) arranged concentrically thereto, and in the housing (1) a central slide ring (11) and a slide ring (14) concentrically surrounding the latter. The concentric slide ring (14) comprises several axial passages (14a) which are arranged in a circle concentric to the axis of rotation (A) and connected to the inlet channel (17) for the second fluid.Type: GrantFiled: November 2, 1989Date of Patent: June 11, 1991Assignee: Ott Maschinentechnik GmbHInventors: Helmut Heel, Karl Bauch, Bartholomaus Reisacher, Stefan Worner