Patents Assigned to SRAM, LLC
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Patent number: 12291297Abstract: Height adjustable seat posts for bicycles are described herein. An example height adjustable seat post includes an upper tube and a lower tube configured in a telescopic arrangement. The height adjustable seat post also includes a shaft coupled to the lower tube and extending into the upper tube a piston assembly coupled to the shaft and disposed in the upper tube. The piston assembly includes a piston dividing the upper tube into a first chamber and a second chamber. The first and second chambers are filled with fluid. The piston assembly includes a valve operable between a closed state in which the fluid is blocked from flowing between the first and second chambers and an open state to enable the fluid to flow between the first and second chambers. The height adjustable seat post also includes a solenoid to control the valve.Type: GrantFiled: February 15, 2023Date of Patent: May 6, 2025Assignee: SRAM, LLCInventors: Rafer Chambers, Christopher Eric Golkiewicz, Chi Hui Su, Donald Frederick Coffman, Alex Kyle McGee, Charles Dunlap
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Patent number: 12286180Abstract: A seat post assembly for a bicycle includes a first tube having a first distal end and a second tube having a second distal end. A distance between the first distal end of the first tube and the second distal end of the second tube is at a maximum when the first tube is in a first position relative to the second tube. The seat post assembly also includes a first chamber and a second chamber that are fluidly coupleable. The first chamber is a positive fluid chamber, and the second chamber is a negative fluid chamber. The seat post assembly includes a fluid volume disposed in the first chamber and the second chamber. The fluid volume includes a compressible fluid. The first chamber is configured to act as a spring configured to bias the first tube towards the first position relative to the second tube.Type: GrantFiled: February 15, 2023Date of Patent: April 29, 2025Assignee: SRAM, LLCInventors: Rafer Chambers, Charles Dunlap
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Publication number: 20250128783Abstract: A control line router for a headset of a bicycle includes a barrier disposed between a component of the bicycle and a segment of a control line within a headtube of the bicycle.Type: ApplicationFiled: October 15, 2024Publication date: April 24, 2025Applicant: SRAM, LLCInventors: CHARLES DUNLAP, KEVIN WESLING
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Patent number: 12280852Abstract: A bicycle crank may include a first lug, a second lug and a transition region. The first lug is for connecting a spindle. The second lug is for connecting a pedal. The transition region interconnects the first lug and the second lug, and is formed from a fiber reinforced thermoplastic material that includes a fiber component and a thermoplastic component.Type: GrantFiled: September 27, 2022Date of Patent: April 22, 2025Assignee: SRAM, LLCInventors: Hong-Chou Lee, Chen-Hsiung Chen, En-Chieh Chen, Joachim Stuermer
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Publication number: 20250121902Abstract: A controller device usable with a bicycle includes a communication interface configured to receive component data from another controller device of the bicycle. The communication interface is configured to receive auxiliary data from outside the bicycle. The controller device includes a processor in communication with the communication interface. The processor being is configured to determine a location of the bicycle based on the auxiliary data, compare the received component data to a plurality of predetermined component datasets for a plurality of bicycles, respectively, and identify at least one bicycle of the plurality of bicycles based on the comparison and the determined location of the bicycle. The at least one bicycle includes the bicycle. The controller device includes a display in communication with the processor. The display is configured to display a representation for each bicycle of the at least one identified bicycle.Type: ApplicationFiled: December 20, 2024Publication date: April 17, 2025Applicant: SRAM, LLCInventors: MARK SANTURBANE, ALEX HO, BRIAN OBERHOLTZER
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Patent number: 12275490Abstract: A bicycle control system includes a housing, a brake lever moveably connected to the housing between an at-rest position and a brake engaging position, and a shift lever moveably connected to the brake lever between an at-rest position and a shift actuating position. An electrical switch is disposed on one of the brake lever or the shift lever. An adjustable shift actuator is moveably coupled to the other of the brake lever or the shift lever. The shift actuator is configured to actuate the electrical switch when the shift lever is moved to the shift actuating position. The shift actuator is adjustably moveable relative to the other of the brake lever or the shift lever so as to adjust the distance between the at-rest position and the shift actuating position.Type: GrantFiled: February 24, 2023Date of Patent: April 15, 2025Assignee: SRAM, LLCInventors: Anneliese Wareham, Rachel Cahan, Thomas Kehrer
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Publication number: 20250115323Abstract: Height adjustable seat posts for bicycles are described herein. An example height adjustable seat post includes an upper tube and a lower tube configured in a telescopic arrangement. The height adjustable seat post also includes a shaft coupled to the lower tube and extending into the upper tube a piston assembly coupled to the shaft and disposed in the upper tube. The piston assembly includes a piston dividing the upper tube into a first chamber and a second chamber. The first and second chambers are filled with fluid. The piston assembly includes a valve operable between a closed state in which the fluid is blocked from flowing between the first and second chambers and an open state to enable the fluid to flow between the first and second chambers. The height adjustable seat post also includes a solenoid to control the valve.Type: ApplicationFiled: December 17, 2024Publication date: April 10, 2025Applicant: SRAM, LLCInventors: RAFER CHAMBERS, CHRISTOPHER ERIC GOLKIEWICZ, CHI HUI SU, DONALD FREDERICK COFFMAN, ALEX KYLE MCGEE, CHARLES DUNLAP
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Publication number: 20250115328Abstract: A torque sensor includes a contact sensor and a contactless sensor. An electric drive system for a bicycle includes an electric motor having a rotor rotatable about an axis. An output component is coupled to the electric motor and is rotatable about an axis. An input component is rotatable about the axis and is concentric with the output component and the rotor. A one-way clutch is disposed between the input component and output component. The contact sensor is coupled to the output component. The contact sensor is configured to measure a torque applied to the output component by the input component and provide an input signal. The contactless sensor is disposed between the output component and a fixed component.Type: ApplicationFiled: October 4, 2023Publication date: April 10, 2025Applicant: SRAM, LLCInventor: SAGE HAHN
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Patent number: 12269547Abstract: A seat post assembly includes a first tube moveable along an axis between a first position and a second position and a second tube telescopically moveable along the axis relative to the first tube between a retracted position and an extended position. A positioning assembly configured to adjustably position the second tube relative to the first tube. An electric actuator is adapted to be automatically electrically connected to a power source when the first tube is moved from the first position to the second position, and automatically electrically disconnected from the power source when the first tube is moved from the second position to the first position. The electric actuator is movable to actuate the positioning assembly in response to an electrical current adapted to be transmitted from the power source when the first tube is in the first position to adjustably position the second tube relative to the first tube.Type: GrantFiled: November 21, 2022Date of Patent: April 8, 2025Assignee: SRAM, LLCInventors: Brian Jordan, Charles Dunlap, Sage Hahn
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Patent number: 12269552Abstract: This disclosure discloses various brackets with various mounting interfaces for engaging (e.g., mechanically) with various surfaces that are correspondingly configured. For example, one of such brackets can clamp onto a bar (e.g., a handlebar of a vehicle) and then an electronic device (e.g., a smartphone, a tablet, a dedicated navigational unit) can removably secure (e.g., mate) to that bracket. This form of removable securing can be via that bracket having a latch configured to engage a detent of the electronic device (or vice versa) in order to linearly mount the electronic device onto the bracket (or vice versa) and disengage the detent in order rotationally unmount the electronic device from the bracket (or vice versa).Type: GrantFiled: November 28, 2022Date of Patent: April 8, 2025Assignee: SRAM, LLCInventors: Laurence John Wattrus, Evan Charles Huggins, Robert David Martinez, Zakery Allen Koster, Paul Thomas Reamey
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Publication number: 20250108882Abstract: An electronic component for an electric bicycle is provided. The electric bicycle includes a transmission. The electronic component includes a processor configured to identify an operating condition of the electric bicycle, determine transmission losses of the transmission of the electric bicycle based on the identified operating condition, and control an assist motor of the electric bicycle based on the determined transmission losses.Type: ApplicationFiled: October 2, 2023Publication date: April 3, 2025Applicant: SRAM, LLCInventor: BRIAN JORDAN
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Publication number: 20250108883Abstract: An electronic component for an electric bicycle is provided. The electric bicycle includes a transmission. The electronic component includes a processor configured to identify an operating condition of the electric bicycle, determine transmission losses of the transmission of the electric bicycle based on the identified operating condition, and control an assist motor of the electric bicycle based on the determined transmission losses.Type: ApplicationFiled: September 30, 2024Publication date: April 3, 2025Applicant: SRAM, LLCInventor: BRIAN JORDAN
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Patent number: 12263911Abstract: A bicycle with an electric pedal assist motor capable of driving a chainring independent of cranks includes wheel speed sensors and crank cadence sensors. The wheel speed sensors and the crank cadence sensors measure wheel speed and crank cadence, respectively, and provide the measured wheel speed and crank cadence to controller of the bicycle. The controller activates motor overdrive based on the measured wheel speed and/or the measured crank cadence.Type: GrantFiled: October 28, 2022Date of Patent: April 1, 2025Assignee: SRAM, LLCInventors: Sage Hahn, Brian Jordan, Kevin Wesling
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Publication number: 20250100638Abstract: Height adjustable seat posts for bicycles are described herein. An example height adjustable seat post includes an upper tube and a lower tube configured in a telescopic arrangement. The height adjustable seat post includes a piston in the upper tube that divides the upper tube into a first chamber and a second chamber. The first and second chambers are filled with fluid. The piston defines a fluid passageway between the first chamber and the second chamber. The height adjustable seat post includes a plug and a seal carried by the plug. The plug is moveable in a linear direction between a closed position in which the seal is engaged with the piston to block fluid flow through the fluid passageway and an open position in which the seal is spaced from the piston to enable fluid flow through the fluid passageway.Type: ApplicationFiled: September 25, 2023Publication date: March 27, 2025Applicant: SRAM, LLCInventors: CHRISTOPHER SHIPMAN, SAGE HAHN, BRIAN JORDAN
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Publication number: 20250100639Abstract: Height adjustable seat posts for bicycles are described herein. An example height adjustable seat post includes an upper tube and a lower tube configured in a telescopic arrangement. The height adjustable seat post includes a piston assembly in the upper tube that divides the upper tube into a first chamber and a second chamber. The piston assembly includes a valve to control fluid flow between the first and second chambers. The height adjustable seat post also includes an actuator to operate the valve. The height adjustable seat post further includes a connector assembly connected to the lower tube. The connector assembly is to be connected to a mating connector assembly on the bicycle. The connector assembly includes a magnetic connector including a housing having an end surface with an opening, first and second electrical contacts in the opening, and a magnet disposed in the housing and spaced from the end surface of the housing.Type: ApplicationFiled: September 25, 2023Publication date: March 27, 2025Applicant: SRAM, LLCInventors: CHRISTOPHER SHIPMAN, SAGE HAHN, BRIAN JORDAN
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Publication number: 20250100640Abstract: Height adjustable seat posts for bicycles are described herein. An example apparatus includes a height adjustable seat post including a valve and an internal actuator to operate the valve to enable the seat post to expand or contract. The apparatus also includes a control device including a housing and a microcontroller in the housing. The control device is outside of the seat post. The microcontroller is to control power to the internal actuator based on wireless signals from a seat post actuator on the bicycle. The apparatus also includes a cable to electrically couple the seat post and the control device.Type: ApplicationFiled: April 9, 2024Publication date: March 27, 2025Applicant: SRAM, LLCInventors: CHRISTOPHER SHIPMAN, SAGE HAHN, BRIAN JORDAN
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Publication number: 20250100648Abstract: A bicycle wheel hub includes a driver rotatable about an axis at a first rotational speed, wherein the driver includes a mating feature configured to engage a cassette. A shell is rotatable about the axis at a second rotational speed. A non-adjustable gear train is coupled between the driver and the shell, wherein the gear train defines a single fixed gear ratio greater than 1:1 between the driver and the shell. A bicycle drive train includes a drive unit having a user input component rotatable about a first axis at a first rotational speed, a chain ring rotatable about a second axis at a second rotational speed, and a gear train coupled between the user input component and the chain ring. The gear train defines a gear ratio less than 1:1 between the user input component and the chain ring. A method of propelling a bicycle is also provided.Type: ApplicationFiled: September 27, 2023Publication date: March 27, 2025Applicant: SRAM, LLCInventors: CHRISTOPHER SHIPMAN, BRIAN JORDAN, ANTHONY MEDAGLIA
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Publication number: 20250083762Abstract: A seat post assembly for a bicycle includes a first tube having a first distal end, and a second tube having a second distal end. The first tube is movable relative to the second tube to establish a distance between the first distal end and the second distal end. The distance is at a maximum distance when the first tube is in a first position relative to the second tube. The seat post assembly includes a seal disposed within the second tube and connected to the first tube or the second tube. The seat post assembly includes a piston coupled to the seal when the first tube is in the first position. A position of the seal relative to the second distal end is adjustable, such that the first position of the first tube relative to the second tube is adjustable via the coupling between the piston and the seal.Type: ApplicationFiled: November 21, 2024Publication date: March 13, 2025Applicant: SRAM, LLCInventors: CHARLES DUNLAP, RAFER CHAMBERS
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Patent number: 12246795Abstract: An e-bike interface is a hybrid wired/wireless e-bike control system that integrates wireless bicycle components into operation of an e-bike. The e-bike interface provides a frame-mounted control and display that is wired to, for example, an assist motor and a battery, and provides a wireless communication bridge between wireless bicycle components and corresponding wireless controls located on a handlebar.Type: GrantFiled: November 23, 2020Date of Patent: March 11, 2025Assignee: SRAM, LLCInventors: Sage Hahn, Sven Baumann, Dominique Fuss, Jochen Bierwerth
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Publication number: 20250074107Abstract: A rim for a bicycle wheel includes a radially inner portion disposed along an inner circumference of the rim, a first sidewall, a second sidewall spaced apart from the first sidewall, a radially outer tire engaging portion disposed along an outer circumference of the rim, and an opening. The first sidewall, the second sidewall, the radially outer tire engaging portion, the radially inner portion, or any combination thereof includes a composite laminate. The composite laminate includes one or more compressed layers of a first composite material, which includes a matrix of a polymer-based material and natural fibers for a reinforcing material, and one or more compressed layers of a second composite material that is different than the first composite material. The opening extends through at least one layer of the one or more compressed layers of the second composite material, such that the second composite material surrounds the opening.Type: ApplicationFiled: August 28, 2023Publication date: March 6, 2025Applicant: SRAM, LLCInventors: RUAN TROUW, DAVID MORSE, BRIAN JORDAN