Patents by Inventor DAVID BOUGHTON

DAVID BOUGHTON 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).

  • Publication number: 20220169336
    Abstract: A multi-sprocket assembly for attachment to a rear axle assembly of a bicycle comprises at least one first sprocket, at least one second sprocket, and at least one damping member. The at least one first sprocket has a toothed ring, a coupling opening and a connecting portion connecting the toothed ring to the coupling opening. The at least one damping member extends from the at least one first sprocket toward the at least one second sprocket. The at least one damping member is disposed at least on an axial side surface of the connecting portion of the at least one first sprocket.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 2, 2022
    Applicant: SRAM DEUTSCHLAND GmbH
    Inventors: PETER GEIST, DAVID BOUGHTON
  • Patent number: 11345190
    Abstract: The present invention relates to a freewheel hub for a bicycle, comprising a freewheel device which optionally allows relative rotation between a hub sleeve and a driver or couples the hub sleeve and the driver in a torque-transmitting manner. The freewheel device has at least one first clutch ring and at least one second clutch ring, wherein the first clutch ring is coupled or coupleable to the hub sleeve in a torque-transmitting manner, and wherein the second clutch ring is coupleable or coupled to the driver in a torque-transmitting manner, and wherein the first and the second clutch ring are displaceable axially relative to the hub axle between an engaged position and a freewheel position. Provision is made here for at least one magnet arrangement accommodated in apertures in the first clutch ring to keep the clutch rings in the engaged position.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: May 31, 2022
    Assignee: SRAM Deutschland GmbH
    Inventors: Henrik Braedt, Joachim Göbel, Vasco Correia, David Boughton
  • Publication number: 20190381826
    Abstract: The present invention relates to a freewheel hub for a bicycle, comprising a freewheel device which optionally allows relative rotation between a hub sleeve and a driver or couples the hub sleeve and the driver in a torque-transmitting manner. The freewheel device has at least one first clutch ring and at least one second clutch ring, wherein the first clutch ring is coupled or coupleable to the hub sleeve in a torque-transmitting manner, and wherein the second clutch ring is coupleable or coupled to the driver in a torque-transmitting manner, and wherein the first and the second clutch ring are displaceable axially relative to the hub axle between an engaged position and a freewheel position. Provision is made here for at least one magnet arrangement accommodated in apertures in the first clutch ring to keep the clutch rings in the engaged position.
    Type: Application
    Filed: August 29, 2019
    Publication date: December 19, 2019
    Applicant: SRAM Deutschland GmbH
    Inventors: HENRIK BRAEDT, JOACHIM GÖBEL, VASCO CORREIA, DAVID BOUGHTON
  • Patent number: 10421316
    Abstract: The present invention relates to a freewheel hub for a bicycle, comprising a freewheel device which optionally allows relative rotation between a hub sleeve and a driver or couples the hub sleeve and the driver in a torque-transmitting manner. The freewheel device has at least one first clutch ring and at least one second clutch ring, wherein the first clutch ring is coupled or coupleable to the hub sleeve in a torque-transmitting manner, and wherein the second clutch ring is coupleable or coupled to the driver in a torque-transmitting manner, and wherein the first and the second clutch ring are displaceable axially relative to the hub axle between an engaged position and a freewheel position. Provision is made here for at least one magnet arrangement accommodated in apertures in the first clutch ring to keep the clutch rings in the engaged position.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: September 24, 2019
    Assignee: SRAM DEUTSCHLAND GMBH
    Inventors: Henrik Braedt, Joachim Göbel, Vasco Correia, David Boughton
  • Publication number: 20170015137
    Abstract: The present invention relates to a freewheel hub for a bicycle, comprising a freewheel device which optionally allows relative rotation between a hub sleeve and a driver or couples the hub sleeve and the driver in a torque-transmitting manner. The freewheel device has at least one first clutch ring and at least one second clutch ring, wherein the first clutch ring is coupled or coupleable to the hub sleeve in a torque-transmitting manner, and wherein the second clutch ring is coupleable or coupled to the driver in a torque-transmitting manner, and wherein the first and the second clutch ring are displaceable axially relative to the hub axle between an engaged position and a freewheel position. Provision is made here for at least one magnet arrangement accommodated in apertures in the first clutch ring to keep the clutch rings in the engaged position.
    Type: Application
    Filed: July 13, 2016
    Publication date: January 19, 2017
    Applicant: SRAM Deutschland GmbH
    Inventors: HENRIK BRAEDT, JOACHIM GÖBEL, VASCO CORREIA, DAVID BOUGHTON