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公开(公告)号：US20250083762A1
公开(公告)日：2025-03-13
申请号：US18955066
申请日：2024-11-21
Applicant: SRAM, LLC
Inventor： CHARLES DUNLAP , RAFER CHAMBERS
Abstract: 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.
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公开(公告)号：US20240409178A1
公开(公告)日：2024-12-12
申请号：US18812465
申请日：2024-08-22
Applicant: SRAM, LLC
Inventor： CHARLES DUNLAP , BRIAN JORDAN , BRADEN SNEAD
Abstract: A control device for a hydraulic brake for a bicycle includes a reservoir for hydraulic fluid. The reservoir has a variable volume. The control device also includes a reservoir cover at least partially defining the reservoir, and a support that is attachable to a handlebar of the bicycle via an inner annular surface of the support. A handlebar proximity zone is radially outer relative to the inner annular surface of the support and is within two centimeters of the inner annular surface of the support. At least part of the reservoir cover is within the handlebar proximity zone.
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公开(公告)号：US20170370431A1
公开(公告)日：2017-12-28
申请号：US15252933
申请日：2016-08-31
Applicant: SRAM, LLC
Inventor： CHARLES DUNLAP , BRADEN SNEAD
Abstract: A brake rotor for a bicycle has a brake body formed of a first material and a cooling element with a cooling body, at least part of which is formed of a second material that has a higher thermal conductivity than the first material. The brake body has a generally annular shape with a first axial contact surface. The cooling body is coupled to the first axial contact surface. The cooling body may be in contact with the first axial contact surface around the brake body for a majority of a circumference of the heat dissipation region. The cooling body may be attached to or be an integral part of a carrier coupled to the brake body. The cooling body may include a protrusion.
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公开(公告)号：US20250128783A1
公开(公告)日：2025-04-24
申请号：US18915789
申请日：2024-10-15
Applicant: SRAM, LLC
Inventor： CHARLES DUNLAP , KEVIN WESLING
Abstract: 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.
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公开(公告)号：US20250115323A1
公开(公告)日：2025-04-10
申请号：US18983548
申请日：2024-12-17
Applicant: SRAM, LLC
Inventor： RAFER CHAMBERS , CHRISTOPHER ERIC GOLKIEWICZ , CHI HUI SU , DONALD FREDERICK COFFMAN , ALEX KYLE MCGEE , CHARLES DUNLAP
IPC: B62J1/08
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20240417013A1
公开(公告)日：2024-12-19
申请号：US18333822
申请日：2023-06-13
Applicant: SRAM, LLC
Inventor： CHARLES DUNLAP , BRIAN JORDAN
IPC: B62J1/08
Abstract: 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 and a piston in the upper tube. The piston divides the upper tube into first chamber and second chambers. The first and second chambers are filled with fluid. The height adjustable seat post also includes a valve including a fixed member and a rotatable member forming a face seal between a first face of the fixed member and a second face of the rotatable member. The fixed member has a fluid flow passageway. The rotatable member is rotatable relative to the fixed member between a closed position in which the rotatable member blocks the fluid flow passageway to prevent fluid flow between the first and second chambers and an open position to enable fluid flow through the fluid flow passageway and between the first and second chambers.
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公开(公告)号：US20210403111A1
公开(公告)日：2021-12-30
申请号：US16917436
申请日：2020-06-30
Applicant: SRAM, LLC
Inventor： RAFER CHAMBERS , CHARLES DUNLAP
IPC: B62J1/06
Abstract: 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.
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公开(公告)号：US20250074539A1
公开(公告)日：2025-03-06
申请号：US18950740
申请日：2024-11-18
Applicant: SRAM, LLC
Inventor： SEBASTIAN HEYNA , HENRIK BRAEDT , CHARLES DUNLAP
Abstract: Brake mounts for bicycles are described herein. The brake mounts are for coupling a brake caliper to a bicycle. An example brake mount includes a bracket having a first side and a second side opposite the first side. The bracket has bores to receive fasteners to couple the brake caliper to the bracket. The brake mount includes a sleeve extending from the first side of the bracket. An opening extends through the sleeve and the bracket. The opening is to receive an axle of a hub assembly of the bicycle. The sleeve is to extend into an axle opening in a frame of the bicycle. A distal end of the sleeve is threaded. The brake mount also includes a nut to be threadably coupled to the distal end of the sleeve when the sleeve is inserted into the axle opening in the frame e.
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公开(公告)号：US20250042490A1
公开(公告)日：2025-02-06
申请号：US18784117
申请日：2024-07-25
Applicant: SRAM, LLC
Inventor： CHARLES DUNLAP , KOSTYANTYN KOZIY
IPC: B62J1/08
Abstract: 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 piston defines a fluid passageway between the first chamber and the second chamber. The height adjustable seat post also includes a plug in the fluid passageway. The plug is moveable in a linear direction between an open position to enable fluid flow through the fluid passageway and a closed position to block fluid flow through the fluid passageway. The height adjustable seat post further includes a motor and a cam assembly to convert rotational motion of the motor to linear movement of the plug.
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公开(公告)号：US20230166807A1
公开(公告)日：2023-06-01
申请号：US17539444
申请日：2021-12-01
Applicant: SRAM, LLC
Inventor： SEBASTIAN HEYNA , HENRIK BRAEDT , CHARLES DUNLAP
CPC classification number: B62L1/005 , B60B27/0052 , B60B27/023
Abstract: Brake mounts for bicycles are described herein. The brake mounts are for coupling a brake caliper to a bicycle. An example brake mount includes a bracket having a first side and a second side opposite the first side. The bracket has bores to receive fasteners to couple the brake caliper to the bracket. The brake mount includes a sleeve extending from the first side of the bracket. An opening extends through the sleeve and the bracket. The opening is to receive an axle of a hub assembly of the bicycle. The sleeve is to extend into an axle opening in a frame of the bicycle. A distal end of the sleeve is threaded. The brake mount also includes a nut to be threadably coupled to the distal end of the sleeve when the sleeve is inserted into the axle opening in the frame e.
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