Patents Assigned to SRAM, LLC
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Publication number: 20190100279Abstract: A bicycle rear derailleur includes a base member having a first portion and a second portion. The first portion of the base member is mountable to a bicycle frame, and the second portion of the base member is attached to the first portion of the base member and includes at least a portion of a power supply attachment. The bicycle rear derailleur also includes a movable member movably coupled to the first portion of the base member and electrically connected to the second portion of the base member. The bicycle rear derailleur includes a chain guide assembly rotatably connected to the movable member.Type: ApplicationFiled: October 2, 2017Publication date: April 4, 2019Applicant: SRAM, LLCInventors: JOSHUA BROWN, PAUL FEUERSTEIN
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Publication number: 20190100280Abstract: A bicycle rear derailleur or gear changer may include a mounting portion mountable to a bicycle frame, an electrical portion attached to the mounting portion and including power supply alignment and attachment features, and an electrical cable electrically connected to the electrical portion and electrically connectable to a printed circuit board (PCB) of a movable member movably coupleable to the mounting portion. The mounting portion and the electrical portion may be formed of different materials.Type: ApplicationFiled: September 28, 2018Publication date: April 4, 2019Applicant: SRAM, LLCInventors: JOSHUA BROWN, PAUL FEUERSTEIN, DAVID REYES
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Publication number: 20190092421Abstract: A suspension component for a bicycle is provided. The suspension component includes a first tube having a first end and a second tube having a second end, the first tube and the second tube configured in a telescopic arrangement having the first end as a first distal end of the telescopic arrangement and the second end forming a second distal end of the telescopic arrangement, the telescopic arrangement having an interior space bounded by inner walls of the first tube and the second tube. The suspension component also includes a fluid damper disposed in the interior space, the fluid damper having a plurality of operational states configured to dampen or resist movement of the first tube relative to the second tube. Characteristics of the suspension component are controllable and/or the suspension component is configured to operate in different states.Type: ApplicationFiled: September 24, 2018Publication date: March 28, 2019Applicant: SRAM, LLCInventor: GEOFF NICHOLS
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Publication number: 20190084651Abstract: A bicycle control assembly may be provided for operating an electromechanical gear shifting device. The control assembly includes a graspable housing mountable to the bicycle, a power supply connected to the control assembly disposed in the housing, a first operating member movably connected to the housing, and electronic componentry disposed on the first operating member. The electronic componentry may include an electrical switch, a controller in communication with the electrical switch and configured to generate a signal to change a shift position of the gear shifting device responsive to an input from the electrical switch, and an antenna in communication with the controller and configured to send the signal. The control assembly may also include a cable extending from the housing to the first operating member connecting the power supply and the electronic componentry.Type: ApplicationFiled: November 15, 2018Publication date: March 21, 2019Applicant: SRAM, LLCInventors: CHRISTOPHER SHIPMAN, MATTHEW C. MORRIS
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Patent number: 10227104Abstract: A bicycle control device mounting assembly for mounting a bicycle control device to a bicycle handlebar having a handlebar central axis and a handlebar opening disposed in the handlebar a distance removed from an end of the handlebar. The bicycle control device mounting assembly comprises a connector assembly. The connector assembly comprises a first connector moveable relative to the handlebar central axis within a first mounting adjustment range and a second connector moveable relative to the handlebar central axis within a second mounting adjustment range.Type: GrantFiled: December 14, 2015Date of Patent: March 12, 2019Assignee: SRAM, LLCInventors: Chen-Yi Yang, Chih-Min Chang, Nathan Schickel
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Patent number: 10220652Abstract: A bicycle wheel assembly may include a rim, a hub assembly, a plurality of spokes and a damper assembly. The damper assembly includes a damping element configured to apply a damping force against at least one spoke of the plurality of spokes. The damping force may be applied in an axial direction of the bicycle wheel and/or to a segment of the at least one spoke near the hub assembly.Type: GrantFiled: March 11, 2016Date of Patent: March 5, 2019Assignee: SRAM, LLCInventor: Charles Emmett Dunlap, III
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Patent number: 10207767Abstract: Responsive to a hydraulic piston advancing out of a piston housing in a second brake arm and contacting a piston cam surface of a first brake arm, the second brake arm pivots around a second pivot. As this is happening, a cam surface in the second brake arm lifts a contact surface of a first force transfer member of the first brake arm, imparting torque to the first brake arm which then pivots around a first pivot. The cam surface is shaped to impart synchronous motion to the first and second pad holders. Splitting one of the brake arms with a centering member permits a centering adjust feature.Type: GrantFiled: September 10, 2015Date of Patent: February 19, 2019Assignee: SRAM, LLCInventors: Charles Dunlap, III, Brian Jordan
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Patent number: 10189305Abstract: A hub for a bicycle, including a hub body, and a torque tube disposed in the hub body. A first mating element is disposed at a first end of the torque tube and a second mating element is disposed at a second end thereof. Each of the first mating element and the second mating element includes an anti-rotation hub feature, and the torque tube transfers torque between the first mating element and the second mating element.Type: GrantFiled: August 29, 2011Date of Patent: January 29, 2019Assignee: SRAM, LLCInventors: Russell L. Rose, Jesse Jakomait
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Patent number: 10184849Abstract: A power meter for a bicycle includes a body having a torque input section and a torque output section, the body configured to transmit power between the torque input section and the torque output section. The power meter also includes a printed circuit board (“PCB”) having a substrate and at least one strain measurement device which may be attached to the PCB.Type: GrantFiled: March 31, 2017Date of Patent: January 22, 2019Assignee: SRAM, LLCInventors: Ryan Jennings, John Eppen, Owen Anders Britton, Jesse Parker
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Patent number: 10183723Abstract: A bicycle control device for use with a road bicycle includes a hydraulic brake control device and a shift control device. The brake and shift control devices are disposed within a housing. The brake control device includes a master cylinder arranged in the housing. A piston assembly includes a piston slidably disposed within the master cylinder. A brake lever is operatively coupled to the piston such that the brake lever pulls the piston from a rest position to an actuated position.Type: GrantFiled: March 12, 2015Date of Patent: January 22, 2019Assignee: SRAM, LLCInventors: Neil Swanson, Mark Santurbane
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Publication number: 20190009857Abstract: Responsive to a hydraulic piston advancing out of a piston housing in a second brake arm and contacting a piston cam surface of a first brake arm, the second brake arm pivots around a second pivot. As this is happening, a cam surface in the second brake arm lifts a contact surface of a first force transfer member of the first brake arm, imparting torque to the first brake arm which then pivots around a first pivot. The cam surface is shaped to impart synchronous motion to the first and second pad holders. Splitting one of the brake arms with a centering member permits a centering adjust feature.Type: ApplicationFiled: September 11, 2018Publication date: January 10, 2019Applicant: SRAM, LLCInventors: Charles Dunlap, III, Brian Jordan
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Publication number: 20190001763Abstract: A pressure measuring device for a bicycle has a housing that includes a pressure chamber. The pressure chamber has a valve disposed in a first opening and a second opening into or out of a tire assembly volume of a tire assembly. A sense element is in pressure communication with the pressure chamber along a flow path between the first and second openings.Type: ApplicationFiled: June 28, 2017Publication date: January 3, 2019Applicant: SRAM, LLCInventors: BRIAN JORDAN, BENJAMIN ROTHSCHILD, GEOFF NICHOLS
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Publication number: 20190002051Abstract: A fluid device for a bicycle may be provided to vent fluid from a hydraulic chamber of a seating component such as an adjustable seating assembly for a bicycle. The fluid device may be operable to vent a compressible fluid or a mixed combination flow of compressible and non-compressible fluids in a metered volume. The fluid device may recycle fluids preferentially.Type: ApplicationFiled: June 25, 2018Publication date: January 3, 2019Applicant: SRAM, LLCInventors: CHRISTOPHER SHIPMAN, BRIAN JORDAN, KEVIN WESLING, RAFER CHAMBERS, JESSE JAKOMAIT
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Publication number: 20190002057Abstract: A wireless control system for a bicycle may include a base part attachable to a bicycle and a movable part. The control system may also include an electric motor disposed on the electromechanical component and a control unit disposed on the electromechanical component for operating the electric motor to operate the electromechanical component, the control unit including a wireless receiver. The control system includes a wake sensor connected to the control unit, the wake sensor configured to cause the control unit and the wireless receiver to become operational in response to detected vibrations of the bicycle.Type: ApplicationFiled: August 20, 2018Publication date: January 3, 2019Applicant: SRAM, LLCInventors: BRIAN JORDAN, TODD SQUIRES
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Publication number: 20190002050Abstract: A bypass device for a seating component such as an adjustable seating assembly for a bicycle may be provided to redistribute fluid preferentially by density. The bypass device may be operable to redistribute a low density compressible fluid or a mixed phase of low density compressible and high density non-compressible fluids within the seating component.Type: ApplicationFiled: June 25, 2018Publication date: January 3, 2019Applicant: SRAM, LLCInventors: CHRISTOPHER SHIPMAN, BRIAN JORDAN
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Publication number: 20190001765Abstract: A pressure measuring device for a bicycle has a housing that includes a pressure chamber. The pressure chamber has a valve disposed in a first opening and a second opening into or out of a tire assembly volume of a tire assembly. A sense element is in pressure communication with the pressure chamber along a flow path between the first and second openings.Type: ApplicationFiled: April 16, 2018Publication date: January 3, 2019Applicant: SRAM, LLCInventors: BRIAN JORDAN, TREVOR KRUGMAN, GEOFF NICHOLS, BENJAMIN ROTHSCHILD, DAVID JONATHAN HUFT
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Publication number: 20180370598Abstract: A bicycle rear derailleur includes a movable member and a chain guide assembly rotatably connected to the movable member. The bicycle rear derailleur also includes a pivot member non-rotatably coupled to the chain guide assembly and having an outer annular surface, a biasing device configured to bias the chain guide assembly in a first rotational direction relative to the movable member, and a damper device disposed between the chain guide assembly and the movable member. The damper device is operable to apply a damping force to the chain guide assembly when the chain guide assembly rotates in a second rotational direction relative to the movable member. The damper device includes a friction device that is radially inner relative to the biasing device. The friction device includes a friction member having at least one friction surface biased against and in frictional engagement with the pivot member.Type: ApplicationFiled: June 26, 2017Publication date: December 27, 2018Applicant: SRAM, LLCInventor: Jih-Hung Chang
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Publication number: 20180346058Abstract: A bicycle rear derailleur has a base member mountable to a bicycle frame, a movable member movably coupled to the base member, a chain guide assembly rotatably connected to the movable member, a biasing element configured to bias the chain guide assembly in a first rotational direction relative to the movable member, and a damper device disposed between the chain guide assembly and the movable member. The damper device is operable to apply a damping force to the chain guide assembly when the chain guide assembly rotates in a second rotational direction relative to the movable member. The damper device includes a friction member having a first end and an outer annular surface. The first end is non-rotatably attached to the chain guide assembly. The outer annular surface of the friction member is in frictional engagement with an inner annular surface of the movable member.Type: ApplicationFiled: June 6, 2017Publication date: December 6, 2018Applicant: SRAM, LLCInventors: JOSHUA BROWN, ANDREW SAMWAYS
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Publication number: 20180313432Abstract: A roller-type chain for a bicycle is configured with asymmetrical chain link plates, the chain link plates applicable for use with a chain with reduced chain width as in use on chain drives with a high number of gear ratios. The chain link plates are configured at the inner side of the chain loop for engagement on the teeth of the rear sprocket and of the front chain wheel. The chain link plates are further configured at the outer side of the chain loop for interaction with the chain-guiding roller on the rear gearshift mechanism.Type: ApplicationFiled: November 3, 2017Publication date: November 1, 2018Applicant: SRAM, LLCInventors: Bruno RIBEIRO, Pedro SANTOS, Diogo SILVA, Matthias REINBOLD, Henrik BRAEDT, John COLLEN
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Publication number: 20180304952Abstract: Example bicycle suspension components and analysis devices are described herein. An example suspension component includes a first tube and a second tube configured in a telescopic arrangement having an interior space, a spring system including a pneumatic chamber containing a mass of a gas forming a pneumatic spring configured to resist compression of the telescopic arrangement, and a suspension component analysis (SCA) device. The SCA device may include a pressure sensor to detect a pressure of the gas in the pneumatic chamber and provide a signal indicative of the detected pressure and circuitry configured to receive the signal. The circuitry and the pressure sensor are at least partially disposed in the interior space.Type: ApplicationFiled: April 16, 2018Publication date: October 25, 2018Applicant: SRAM, LLCInventors: TREVOR KRUGMAN, JACK GREETIS, JAMES MEYER, KEVIN WESLING