Patents by Inventor Christian Antal
Christian Antal 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: 11845511Abstract: A sequential gear shift system for two-way operated speed change gear units of manually propelled vehicles. Mirrored, spaced-apart lever operators, are provided with increasing lever stroke ratio, and actuate sequentially with twin mirrored one-way multi-tooth rack-clutch mechanisms, that rapidly engage with a shift element and convert linear torque to rotate the shift element in diametrically opposite directions. The rack-clutch mechanisms may be disengaged from the shift element when returning to normal. The actuating may occur via independent hydraulic operation of an actuator. The actuator housing and load bearing axle of the speed change gear hub are selectively, releasably, and coaxially interconnected into a rigid gear system load bearing axle, and may be combined at any angle, and a shift direction is selectively reversible.Type: GrantFiled: March 29, 2017Date of Patent: December 19, 2023Assignee: CA TECHNOLOGY SYSTEMS ASInventors: Knut Tore Ljøsne, Christian Antal
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Patent number: 11772745Abstract: A pedally propelled vehicle multi speed gear system includes a gear mechanism including a main shaft; a hollow first shaft and a hollow second shaft, both axially stationary and rotatably arranged about the main shaft; an epicyclical first gear section arranged about the main shaft between the first and second shafts, and including two radially stacked carrier elements; and a first shift mechanism arranged between the first shaft and the first gear section, and configured to rotationally engage the first shaft with either of the two radially stacked carriers. The first shift mechanism includes two first clutches radially stacked about the main shaft.Type: GrantFiled: December 15, 2019Date of Patent: October 3, 2023Assignee: CA TECHNOLOGY SYSTEMS ASInventors: Knut Tore Ljøsne, Christian Antal
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Patent number: 11628909Abstract: A coasting clutch and a gear system with a coasting clutch include mutually facing first and second clutch members. The coasting clutch is arranged to operate in an engaged position, wherein the first and second clutch members are axially in mesh and rotating with the same speed, or overrunning and rotating with different speeds. The coasting clutch includes a coasting mechanism arranged to operate the coasting clutch into a coasting position when the clutch is overrunning. In the coasting position, the first and second clutch members are axially arranged further from each other than in the engaged position.Type: GrantFiled: December 15, 2019Date of Patent: April 18, 2023Assignee: CA TECHNOLOGY SYSTEMS ASInventors: Knut Tore Ljøsne, Christian Antal
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Publication number: 20220073169Abstract: A coasting clutch and a gear system with a coasting clutch include mutually facing first and second clutch members. The coasting clutch is arranged to operate in an engaged position, wherein the first and second clutch members are axially in mesh and rotating with the same speed, or overrunning and rotating with different speeds. The coasting clutch includes a coasting mechanism arranged to operate the coasting clutch into a coasting position when the clutch is overrunning. In the coasting position, the first and second clutch members are axially arranged further from each other than in the engaged position.Type: ApplicationFiled: December 15, 2019Publication date: March 10, 2022Applicant: CA TECHNOLOGY SYSTEMS ASInventors: Knut Tore LJØSNE, Christian ANTAL
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Publication number: 20220055716Abstract: A pedally propelled vehicle multi speed gear system includes a gear mechanism including a main shaft; a hollow first shaft and a hollow second shaft, both axially stationary and rotatably arranged about the main shaft; an epicyclical first gear section arranged about the main shaft between the first and second shafts, and including two radially stacked carrier elements; and a first shift mechanism arranged between the first shaft and the first gear section, and configured to rotationally engage the first shaft with either of the two radially stacked carriers. The first shift mechanism includes two first clutches radially stacked about the main shaft.Type: ApplicationFiled: December 15, 2019Publication date: February 24, 2022Applicant: CA TECHNOLOGY SYSTEMS ASInventors: Knut Tore LJØSNE, Christian ANTAL
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Publication number: 20190283839Abstract: A sequential gear shift system for two-way operated speed change gear units of manually propelled vehicles. Mirrored, spaced-apart lever operators, are provided with increasing lever stroke ratio, and actuate sequentially with twin mirrored one-way multi-tooth rack-clutch mechanisms, that rapidly engage with a shift element and convert linear torque to rotate the shift element in diametrically opposite directions. The rack-clutch mechanisms may be disengaged from the shift element when returning to normal. The actuating may occur via independent hydraulic operation of an actuator. The actuator housing and load bearing axle of the speed change gear hub are selectively, releasably, and coaxially interconnected into a rigid gear system load bearing axle, and may be combined at any angle, and a shift direction is selectively reversible.Type: ApplicationFiled: March 29, 2017Publication date: September 19, 2019Inventors: Knut Tore LJØSNE, Christian ANTAL
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Patent number: 9279480Abstract: A robust and reliable multi-speed gear system for use on pedally or other manually propelled vehicles, comprising simple epicyclical sections 82, 83, 23 in a complex structure, an internal axial tunnel enabling use of a detachable, vertical shear force load carrying through-bolt 15, a rotatable shift axle 25, a main shaft 7 non-rotatably mounted to the vehicle frame 10, axially floating shift mechanisms 20, 22, 65, and a hub shell 1 fully enclosing the gear mechanisms. The multispeed hub is robust, light, easily manufactured, offers many speeds and great gear width, and is rigidly securable to the vehicle frame.Type: GrantFiled: March 5, 2012Date of Patent: March 8, 2016Assignee: CA TECHNOLOGY SYSTEMS ASInventors: Christian Antal, Knut Tore Ljøsne
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Publication number: 20130345013Abstract: A robust and reliable multi-speed gear system for use on pedally or other manually propelled vehicles, comprising simple epicyclical sections 82, 83, 23 in a complex structure, an internal axial tunnel enabling use of a detachable, vertical shear force load carrying through-bolt 15, a rotatable shift axle 25, a main shaft 7 non-rotatably mounted to the vehicle frame 10, axially floating shift mechanisms 20, 22, 65, and a hub shell 1 fully enclosing the gear mechanisms. The multispeed hub is robust, light, easily manufactured, offers many speeds and great gear width, and is rigidly securable to the vehicle frame.Type: ApplicationFiled: March 5, 2012Publication date: December 26, 2013Applicant: CA TECHNOLOGY SYSTEMS ASInventors: Christian Antal, Knut Tore Ljøsne
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Publication number: 20110068618Abstract: The present invention relates to a cartridge-based hub system for a bicycle with at least two frame stays, consisting of a hub shell that is fastened together with the hub wheel rim, and an internal detachable cartridge consisting of the typical elements that a hub contains, made in such a way that the cartridge can be detached from the hub shell and the rest of the wheel by a person not possessing the competence of a specialist, without exposing the inner mechanism. The cartridge-based hub system enables the cyclist to use the same cartridge on multiple wheel sets with for example different rim- and tire solutions, and to use different cartridges with different hub- and power transfer solutions on the same wheel set. Furthermore, a cartridge-based hub system enables the use of detachable power transfer solutions on wheels with synchronously arranged spokes, which strengthens the wheel and eases the process of building a wheel, compared to wheels with asynchronously arranged spokes.Type: ApplicationFiled: May 27, 2009Publication date: March 24, 2011Inventors: Christian Antal, Knut Tore Ljøsne