Patents by Inventor Rainer POKORNY

Rainer POKORNY 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).

  • BICYCLE GEARBOX HAVING SEGMENTED SPROCKETS
    Publication number: 20230365221
    Abstract: A gearbox may include a drive spindle and several interconnected gear clusters arranged in a housing. A first of the gear clusters is coaxially fastened to the spindle, and has an outboard gear and an inboard gear. The first gear cluster drives a belt to operate one or more of the other gear clusters, and the inboard gear is physically divided into a plurality of segments. A shifting system for the gearbox includes an actuator configured to urge the segments of the inboard gear of the first gear cluster into and out of the plane of the belt, such that a gear ratio of the gearbox is changeable without displacing the belt out of the plane.
    Type: Application
    Filed: February 7, 2023
    Publication date: November 16, 2023
    Inventors: David ALLEN, David M. EARLE, Kyle BENNETT, William A. HILGENBERG, Rainer POKORNY, Ryan Kent MILLER
  • Bicycle gearbox having segmented sprockets
    Patent number: 11572131
    Abstract: A gearbox may include a drive spindle and several interconnected gear clusters arranged in a housing. A first of the gear clusters is coaxially fastened to the spindle, and has an outboard gear and an inboard gear. The first gear cluster drives a belt to operate one or more of the other gear clusters, and the inboard gear is physically divided into a plurality of segments. A shifting system for the gearbox includes an actuator configured to urge the segments of the inboard gear of the first gear cluster into and out of the plane of the belt, such that a gear ratio of the gearbox is changeable without displacing the belt out of the plane.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: February 7, 2023
    Assignee: Praxis Works LLC
    Inventors: David Allen, David M. Earle, Kyle Bennett, William A. Hilgenberg, Rainer Pokorny, Ryan Kent Miller
  • Bicycle gearbox having segmented sprockets
    Patent number: 10989281
    Abstract: A gearbox may include a drive spindle and several interconnected gear clusters arranged in a housing. A first of the gear clusters is coaxially fastened to the spindle, and has an outboard gear and an inboard gear. The first gear cluster drives a chain to operate one or more of the other gear clusters, and the inboard gear is physically divided into a plurality of segments. A shifting system for the gearbox includes an actuator configured to urge the segments of the inboard gear of the first gear cluster into and out of the plane of the chain, such that a gear ratio of the gearbox is changeable without displacing the chain out of the plane.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: April 27, 2021
    Assignee: Praxis Works LLC
    Inventors: David Allen, David M. Earle, Kyle Bennett, William A. Hilgenberg, Rainer Pokorny
  • BICYCLE GEARBOX HAVING SEGMENTED SPROCKETS
    Publication number: 20200377174
    Abstract: A gearbox may include a drive spindle and several interconnected gear clusters arranged in a housing. A first of the gear clusters is coaxially fastened to the spindle, and has an outboard gear and an inboard gear. The first gear cluster drives a belt to operate one or more of the other gear clusters, and the inboard gear is physically divided into a plurality of segments. A shifting system for the gearbox includes an actuator configured to urge the segments of the inboard gear of the first gear cluster into and out of the plane of the belt, such that a gear ratio of the gearbox is changeable without displacing the belt out of the plane.
    Type: Application
    Filed: August 20, 2020
    Publication date: December 3, 2020
    Applicant: Praxis Works LLC
    Inventors: David ALLEN, David M. EARLE, Kyle BENNETT, William A. HILGENBERG, Rainer POKORNY, Ryan Kent MILLER
  • BICYCLE GEARBOX HAVING SEGMENTED SPROCKETS
    Publication number: 20200263767
    Abstract: A gearbox may include a drive spindle and several interconnected gear clusters arranged in a housing. A first of the gear clusters is coaxially fastened to the spindle, and has an outboard gear and an inboard gear. The first gear cluster drives a chain to operate one or more of the other gear clusters, and the inboard gear is physically divided into a plurality of segments. A shifting system for the gearbox includes an actuator configured to urge the segments of the inboard gear of the first gear cluster into and out of the plane of the chain, such that a gear ratio of the gearbox is changeable without displacing the chain out of the plane.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 20, 2020
    Applicant: Praxis Works LLC
    Inventors: David ALLEN, David M. EARLE, Kyle BENNETT, William A. HILGENBERG, Rainer POKORNY