Patents Assigned to SRAM, LLC
  • Chainring
    Patent number: 9493211
    Abstract: A bicycle chainring includes a plurality of teeth extending from a periphery of the chainring wherein roots of the plurality of teeth are disposed adjacent the periphery of the chainring. The plurality of teeth include a first group of teeth and a second group of teeth, each of the first group of teeth wider than each of the second group of teeth. At least some of the second group of teeth arranged alternatingly and adjacently between the first group of teeth, and at least some of the first and/or second group of teeth being asymmetric along the chainring circumference.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: November 15, 2016
    Assignee: SRAM, LLC
    Inventors: Markus Reiter, Raymond Florczyk, Henrik Braedt
  • Hydraulic brake mechanism
    Patent number: 9487199
    Abstract: A hydraulic brake mechanism is described including a housing. A master cylinder assembly is disposed within the housing, and the master cylinder assembly includes a fluid chamber. The fluid chamber includes a first chamber portion having a first diameter and a second chamber portion having a second diameter, with the first diameter greater than the second diameter. The fluid chamber includes a transition region between the first and second chamber portions. The mechanism includes a piston assembly having a piston disposed within the fluid chamber. A first seal is configured to sealingly engage between the first chamber portion and the piston, and a second seal is configured to sealingly engage between the second chamber portion and the piston. The mechanism includes an outlet port extending from the fluid chamber from or adjacent the transition region.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: November 8, 2016
    Assignee: SRAM, LLC
    Inventors: Charles E. Dunlap, Paul Feuerstein
  • Bicycle wheel and counterweight
    Patent number: 9447842
    Abstract: A bicycle wheel including a rim with one or more counterweight assemblies. Each of the one or more counterweight assemblies includes a receiver attached to the rim and a counterweight that is attached to the receiver.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: September 20, 2016
    Assignee: SRAM, LLC
    Inventors: Kevin J. Wesling, Josh Poertner, Nathan Luman
  • Bicycle shifter
    Patent number: 9446813
    Abstract: A bicycle shifter for pulling and releasing a control cable connected to a gear change mechanism mountable at or near an end of the handlebar that returns to a neutral position after each shift operation to decrease aerodynamic drag encountered by the rider. The shifter includes a takeup member, a control mechanism, a holding mechanism and a return assembly. The takeup member is rotatable about a shift axis for winding and unwinding the control cable thereon in a cable-pull direction and a cable-release direction. The control mechanism is movable in a first direction to rotate the takeup member in the cable-pull direction and in a second direction to rotate the takeup member in the cable-release direction. The holding mechanism retains the takeup member in a selected position and the return assembly returns the control mechanism to the neutral position after each shift operation.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: September 20, 2016
    Assignee: SRAM, LLC
    Inventors: Christopher Shipman, Kevin Wesling
  • Bicycle Control Device
    Publication number: 20160264213
    Abstract: 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: Application
    Filed: March 12, 2015
    Publication date: September 15, 2016
    Applicant: SRAM, LLC
    Inventors: Neil Swanson, Mark Santurbane
  • Chainrings and Crank Assemblies
    Publication number: 20160238122
    Abstract: A chainring includes a first section having consecutive first teeth. Each of the first teeth includes a first load flank surface having a first wear resistance. The chainring also includes a second section coupled to the first section. The second section includes consecutive second teeth. Each of the second teeth includes a second load flank surface having a second wear resistance greater than the first wear resistance. The consecutive second teeth span an arc length corresponding to between one twelfth and one third of a circumference of a pitch circle of the chainring.
    Type: Application
    Filed: February 12, 2015
    Publication date: August 18, 2016
    Applicant: SRAM, LLC
    Inventors: Anthony Medaglia, Joseph Wilson
  • Rear derailleur
    Patent number: 9394030
    Abstract: An embodiment of the invention provides an electromechanical rear derailleur for a bicycle including a base member that is configured to be coupled to a frame member of a bicycle. The derailleur includes a movable member and a link mechanism that movably couples the movable member to the base member. A motor is positioned at the movable member to move the movable member.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: July 19, 2016
    Assignee: SRAM, LLC
    Inventors: Christopher Shipman, Brian Jordan
  • Bicycle Steerer Tube with Variant Stiffness
    Publication number: 20160185414
    Abstract: A bicycle steerer tube is adapted to reside in a plane of travel of the bicycle. A thickness at a point on the wall of the steerer tube body in a lower section thereof varies as a function of the cross-sectional angle of the point to the plane of travel, with the wall thickness being at a maximum in the plane of travel. An inner wall of the lower section may be elliptical, with a minor axis aligned with the plane of travel and a major axis orthogonal to the plane of travel.
    Type: Application
    Filed: December 30, 2014
    Publication date: June 30, 2016
    Applicant: SRAM, LLC
    Inventors: Jonathan Blair Watt, Robert Powell
  • Support Assembly for a Bicycle Front Derailleur
    Publication number: 20160167742
    Abstract: A support assembly for supporting a front derailleur at a bicycle frame is provided. The bicycle frame includes a longitudinal axis, a support portion arranged lengthwise about the longitudinal axis and a mounting portion projecting outwardly from the support portion. The front derailleur includes a base member attachable to the mounting portion of the bicycle frame at a derailleur mounting axis. The base includes a support mounting surface facing the bicycle frame. The support assembly includes a support member and a support member mount. The support member is displaceable relative to the base member along the support mounting surface of the base member. The support member includes a contact surface configured to contact the support portion of the bicycle frame. The support member mount is configured to attach the support member to the support mounting surface of the base member.
    Type: Application
    Filed: December 12, 2014
    Publication date: June 16, 2016
    Applicant: SRAM, LLC
    Inventors: Mark Santurbane, Brian Jordan
  • CHAINRING
    Publication number: 20160121966
    Abstract: A bicycle chainring for engagement with a drive chain includes a plurality of teeth extending from a periphery of the chainring wherein roots of the plurality of teeth are disposed adjacent the periphery of the chainring. The plurality of teeth include a first group of teeth and a second group of teeth, each of the first group of teeth wider than each of the second group of teeth. At least some of the second group of teeth are arranged alternatingly and adjacently between the first group of teeth, and at least some of the first group of teeth are asymmetrically wider than each of the second group of teeth.
    Type: Application
    Filed: January 11, 2016
    Publication date: May 5, 2016
    Applicant: SRAM, LLC
    Inventors: MARKUS REITER, RAYMOND FLORCZYK, HENRIK BRAEDT
  • Clad chainring
    Patent number: 9328814
    Abstract: A bicycle chainring, including a generally annular body formed of at least an inner material, the inner material including a first side and a second side opposite the first side and a plurality of teeth disposed about a periphery of the body. At least some of the plurality of teeth are formed of both the inner material and an outer material, the outer material disposed on one or both of the first and second sides, the outer material having a greater wear resistance relative to the inner material and a thickness greater than 0.1 millimeter.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: May 3, 2016
    Assignee: SRAM, LLC
    Inventors: Kevin Wesling, Anthony Medaglia
  • Variable rate assembly for a brake system for bicycle
    Patent number: 9290232
    Abstract: A brake assembly for a hydraulic brake system of a handlebar-steered vehicle, the brake assembly including a housing mountable to a handlebar of the vehicle and having a chamber formed therein. The brake assembly is provided with a variable rate linkage. A piston assembly is received and axially guided within the chamber and is provided with a piston adjustment mechanism that does not affect the function of the variable rate linkage.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: March 22, 2016
    Assignee: SRAM, LLC
    Inventor: Braden T. Snead
  • Chainring
    Patent number: 9291250
    Abstract: A solitary chainring of a bicycle front crankset for engaging a drive chain, including a plurality of teeth formed about a periphery of the chainring, the plurality of teeth consisting of an even number. The plurality of teeth includes a first group of teeth and a second group of teeth arranged alternatingly between the first group of teeth. The first group of teeth and the second group of teeth are equal in number. Each of the first and second group of teeth include an outboard side and an inboard side opposite the outboard side and each tooth of the first group of teeth includes at least a first protrusion on the outboard side thereof and each tooth of the second group of teeth are free of the first protrusions on the outboard side and the inboard side.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: March 22, 2016
    Assignee: SRAM, LLC
    Inventors: Markus Reiter, Raymond Florczyk, Henrik Braedt
  • Bicycle derailleur and method
    Patent number: 9284017
    Abstract: A front derailleur for use on devices such as bicycles includes a moveable chain guide for engaging a chain and able to cause the chain to be moved between two or more chainrings. The guide includes a first discrete alignment indicator and a second discrete alignment indicator for aligning the derailleur.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: March 15, 2016
    Assignee: SRAM, LLC
    Inventors: Brian Jordan, Mark V. Santurbane
  • BICYCLE MULTI-GEAR CASSETTE
    Publication number: 20160059932
    Abstract: A bicycle multi-gear cassette mountable to a wheel hub driver mechanism that includes truncated conical shell having a first opening proximate a small shell base and a second opening proximate a large shell base. The openings are coaxial with an axis of the shell. A plurality of toothed sprockets having different numbers of teeth are disposed on the shell and extend radially of the central axis. A torque load transmitting profile is configured on the shell proximate one of the small and large shell bases. A radial load transmitting profile is configured on the shell proximate one of the small and large shell bases. The shell, sprockets, and the load transmitting profiles embody a single piece.
    Type: Application
    Filed: September 8, 2015
    Publication date: March 3, 2016
    Applicant: SRAM, LLC
    Inventor: HENRIK BRAEDT
  • CHAINRING
    Publication number: 20160052597
    Abstract: A bicycle chainring includes a plurality of teeth extending from a periphery of the chainring wherein roots of the plurality of teeth are disposed adjacent the periphery of the chainring. The plurality of teeth include a first group of teeth and a second group of teeth, each of the first group of teeth wider than each of the second group of teeth. At least some of the second group of teeth arranged alternatingly and adjacently between the first group of teeth, and at least some of the first and/or second group of teeth being asymmetric along the chainring circumference.
    Type: Application
    Filed: November 2, 2015
    Publication date: February 25, 2016
    Applicant: SRAM, LLC
    Inventors: MARKUS REITER, RAYMOND FLORCZYK, HENRIK BRAEDT
  • CHAINRING
    Publication number: 20160052599
    Abstract: A bicycle chainring includes a plurality of teeth extending from a periphery of the chainring wherein roots of the plurality of teeth are disposed adjacent the periphery of the chainring. The plurality of teeth include a first group of teeth and a second group of teeth, each of the first group of teeth wider than each of the second group of teeth, and at least some of the second group of teeth arranged alternatingly and adjacently between the first group of teeth, wherein the center of a top land of at least some of the first and second groups of teeth are offset from a plane in a direction toward one of the inboard and outboard sides of the chainring.
    Type: Application
    Filed: November 2, 2015
    Publication date: February 25, 2016
    Applicant: SRAM, LLC
    Inventors: MARKUS REITER, RAYMOND FLORCZYK, HENRIK BRAEDT
  • CHAINRING
    Publication number: 20160052598
    Abstract: A bicycle chainring includes a plurality of teeth extending from a periphery of the chainring wherein roots of the plurality of teeth are disposed adjacent the periphery of the chainring. The plurality of teeth including a first group of teeth and a second group of teeth, each of the first group of teeth wider than each of the second group of teeth. At least some of the second group of teeth are arranged alternatingly and adjacently between the first group of teeth, each of the plurality of teeth includes an outboard side and an inboard side opposite the outboard side and one of the inboard and outboard sides of each of the second group of teeth includes a link-receiving recess formed in the chainring.
    Type: Application
    Filed: November 2, 2015
    Publication date: February 25, 2016
    Applicant: SRAM, LLC
    Inventors: MARKUS REITER, RAYMOND FLORCZYK, HENRIK BRAEDT
  • CHAINRING
    Publication number: 20160052596
    Abstract: A bicycle chainring includes a plurality of teeth extending from a periphery of the chainring wherein roots of the plurality of teeth are disposed adjacent the periphery of the chainring. The plurality of teeth include a first group of teeth and a second group of teeth, each of the first group of teeth wider than each of the second group of teeth. At least some of the second group of teeth are arranged alternatingly and adjacently between the first group of teeth, and wherein the periphery of the chainring is generally non-circular.
    Type: Application
    Filed: November 2, 2015
    Publication date: February 25, 2016
    Applicant: SRAM, LLC
    Inventors: MARKUS REITER, RAYMOND FLORCZYK, HENRIK BRAEDT
  • Disc brake rotor portion
    Patent number: D749477
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: February 16, 2016
    Assignee: SRAM, LLC
    Inventor: Charles Emmett Dunlap, III