Patents by Inventor MARTIN KEHRER
MARTIN KEHRER 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: 20250010658Abstract: A freewheel hub for a bicycle includes a driver and a hub sleeve, which are each supported on a hub axle to be rotatable about a common axis of rotation, a detent body arrangement having at least one detent body, supported in a radial detent body recess to be displaceable between a locking position and a release position, and a preloading device, which is configured to preload the detent body towards the locking position, wherein the detent body recess is provided in a component comprising the driver and the hub sleeve, while the other has a radial driving tooth system or is connected for conjoint rotation to the latter, wherein the surface of the detent body has a coupling surface, which rests against a contact surface of the detent body recess in the locking position, while an engagement portion of the detent body engages in the driving tooth system.Type: ApplicationFiled: June 20, 2024Publication date: January 9, 2025Applicant: SRAM DEUTSCHLAND GmbHInventors: JOACHIM GOEBEL, MARTIN KEHRER
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Patent number: 11884363Abstract: An individual chain wheel for a bicycle front crank arrangement for engaging in a drive chain includes a plurality of teeth formed on a circumference of the chain wheel and having a first and a second group of teeth. The teeth of the second group of teeth are arranged in an alternating manner between the teeth of the first group of teeth. Each tooth has a load flank via which force is transmitted between an adjacent roller of the drive chain and the respective tooth. Each tooth of the first group may also have at least one profile with an opening in the vicinity of the flank, in which a portion of an inner link plate of the drive chain, which portion protrudes beyond the roller, engages.Type: GrantFiled: December 6, 2021Date of Patent: January 30, 2024Assignee: SRAM DEUTSCHLAND GmbHInventors: Markus Reiter, Joachim Hanke, Bryn Johnson, Andreas Vonend, Martin Kehrer, Henrik Braedt, Pedro Miguel Nunes Dos Santos, Luis Figueiredo, Rodrigo Antunes
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Patent number: 11353102Abstract: An individual chain wheel for a bicycle front crank arrangement for engaging in a drive chain includes a plurality of teeth formed on a circumference of the chain wheel and having a first and a second group of teeth. The teeth of the second group of teeth are arranged in an alternating manner between the teeth of the first group of teeth. Each tooth has a load flank via which force is transmitted between an adjacent roller of the drive chain and the respective tooth. Each tooth of the first group may also have at least one profile with an opening in the vicinity of the flank, in which a portion of an inner link plate of the drive chain, which portion protrudes beyond the roller, engages.Type: GrantFiled: January 24, 2020Date of Patent: June 7, 2022Assignee: SRAM Deutschland GmbHInventors: Markus Reiter, Joachim Hanke, Bryn Johnson, Andreas Vonend, Martin Kehrer, Henrik Braedt, Pedro Miguel Nunes Dos Santos, Luis Figueiredo, Rodrigo Antunes
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Publication number: 20220090671Abstract: An individual chain wheel for a bicycle front crank arrangement for engaging in a drive chain includes a plurality of teeth formed on a circumference of the chain wheel and having a first and a second group of teeth. The teeth of the second group of teeth are arranged in an alternating manner between the teeth of the first group of teeth. Each tooth has a load flank via which force is transmitted between an adjacent roller of the drive chain and the respective tooth. Each tooth of the first group may also have at least one profile with an opening in the vicinity of the flank, in which a portion of an inner link plate of the drive chain, which portion protrudes beyond the roller, engages.Type: ApplicationFiled: December 6, 2021Publication date: March 24, 2022Applicant: SRAM DEUTSCHLAND GmbHInventors: MARKUS REITER, JOACHIM HANKE, BRYN JOHNSON, ANDREAS VONEND, MARTIN KEHRER, HENRIK BRAEDT, PEDRO MIGUEL NUNES DOS SANTOS, LUIS FIGUEIREDO, RODRIGO ANTUNES
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Patent number: 10703441Abstract: A drive arrangement for a bicycle may include a plurality of sprockets arranged at a rear wheel of the bicycle. The sprockets may be particularly arranged to have a spacing that facilitates the configuration of an increasing number of sprockets in the plurality of sprockets. A singular front sprocket or chain ring may be used to drive the rear plurality of sprockets. The singular front chain ring may include first and second groups of teeth, the first group of teeth being wider than the second group of teeth. The drive arrangement may also include a rear derailleur. A chain having inner link plates with recesses may also be include in the drive arrangement.Type: GrantFiled: January 5, 2018Date of Patent: July 7, 2020Assignee: SRAM DEUTSCHLAND GmbHInventors: Pedro Miguel Nunes Dos Santos, Markus Reiter, Joachim Hanke, Bryn Johnson, Andreas Vonend, Martin Kehrer, Henrik Braedt, Luis Figueiredo, Rodrigo Antunes, Bruno Miguel Ferreira Da Silva Ribeiro
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Publication number: 20200158224Abstract: An individual chain wheel for a bicycle front crank arrangement for engaging in a drive chain includes a plurality of teeth formed on a circumference of the chain wheel and having a first and a second group of teeth. The teeth of the second group of teeth are arranged in an alternating manner between the teeth of the first group of teeth. Each tooth has a load flank via which force is transmitted between an adjacent roller of the drive chain and the respective tooth. Each tooth of the first group may also have at least one profile with an opening in the vicinity of the flank, in which a portion of an inner link plate of the drive chain, which portion protrudes beyond the roller, engages.Type: ApplicationFiled: January 24, 2020Publication date: May 21, 2020Applicant: SRAM DEUTSCHLAND GmbHInventors: MARKUS REITER, JOACHIM HANKE, BRYN JOHNSON, ANDREAS VONEND, MARTIN KEHRER, HENRIK BRAEDT, PEDRO MIGUEL NUNES DOS SANTOS, LUIS FIGUEIREDO, RODRIGO ATUNES
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Patent number: 10578201Abstract: An individual chain wheel for a bicycle front crank arrangement for engaging in a drive chain includes a plurality of teeth formed on a circumference of the chain wheel and having a first and a second group of teeth. The teeth of the second group of teeth are arranged in an alternating manner between the teeth of the first group of teeth. Each tooth has a load flank via which force is transmitted between an adjacent roller of the drive chain and the respective tooth. Each tooth of the first group may also have at least one profile with an opening in the vicinity of the flank, in which a portion of an inner link plate of the drive chain, which portion protrudes beyond the roller, engages.Type: GrantFiled: July 8, 2016Date of Patent: March 3, 2020Assignee: SRAM DEUTSCHLAND GMBHInventors: Markus Reiter, Joachim Hanke, Bryn Johnson, Andreas Vonend, Martin Kehrer, Henrik Braedt, Pedro Miguel Nunes Dos Santos, Luis Figueiredo, Rodrigo Antunes
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Publication number: 20180194433Abstract: A drive arrangement for a bicycle may include a plurality of sprockets arranged at a rear wheel of the bicycle. The sprockets may be particularly arranged to have a spacing that facilitates the configuration of an increasing number of sprockets in the plurality of sprockets. A singular front sprocket or chain ring may be used to drive the rear plurality of sprockets. The singular front chain ring may include first and second groups of teeth, the first group of teeth being wider than the second group of teeth. The drive arrangement may also include a rear derailleur. A chain having inner link plates with recesses may also be include in the drive arrangement.Type: ApplicationFiled: January 5, 2018Publication date: July 12, 2018Applicant: SRAM DEUTSCHLAND GmbHInventors: PEDRO MIGUEL NUNES DOS SANTOS, MARKUS REITER, JOACHIM HANKE, BRYN JOHNSON, ANDREAS VONEND, MARTIN KEHRER, HENRIK BRAEDT, LUIS FIGUEIREDO, RODRIGO ANTUNES, BRUNO MIGUEL FERREIRA DA SILVA RIBEIRO
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Publication number: 20170146109Abstract: An individual chain wheel for a bicycle front crank arrangement for engaging in a drive chain includes a plurality of teeth formed on a circumference of the chain wheel and having a first and a second group of teeth. The teeth of the second group of teeth are arranged in an alternating manner between the teeth of the first group of teeth. Each tooth has a load flank via which force is transmitted between an adjacent roller of the drive chain and the respective tooth. Each tooth of the first group may also have at least one profile with an opening in the vicinity of the flank, in which a portion of an inner link plate of the drive chain, which portion protrudes beyond the roller, engages.Type: ApplicationFiled: July 8, 2016Publication date: May 25, 2017Applicant: SRAM Deutschland GmbHInventors: MARKUS REITER, JOACHIM HANKE, BRYN JOHNSON, ANDREAS VONEND, MARTIN KEHRER, HENRIK BRAEDT, PEDRO MIGUEL NUNES DOS SANTOS, LUIS FIGUEIREDO, RODRIGO ANTUNES