Patents by Inventor Zachary Krapfl

Zachary Krapfl 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).

  • Publication number: 20060003868
    Abstract: The present invention provides for a variable stride exercise device having a variable size close curved striding path during use. The exercise device described and depicted herein utilizes various configurations of linkage assemblies, cam members, and other components, connected with a frame to allow a user to dynamically vary his stride path during exercise. An exercise device conforming to aspects of the present invention provides a foot path that adapts to the change in stride length rather than forcing the user into a fixed size path. Some embodiments of the exercise device include a lockout device that selectively eliminates the variable stride features of the exercise device and allows the user to exercise in a stepping motion. Other aspects of the present invention relate to a releasable connection mechanism that can be used to selectively and/or automatically limit or eliminate the variable stride feature of an exercise device.
    Type: Application
    Filed: June 21, 2005
    Publication date: January 5, 2006
    Applicant: Nautilus, Inc.
    Inventors: Andrew Lull, Keith Weier, Zachary Krapfl, Chester Kowalewski, Jonathan Watt
  • Publication number: 20050202939
    Abstract: The present invention provides for a variable stride exercise device having a variable size close curved striding path during use. The exercise device described and depicted herein utilizes various configurations of linkage assemblies, cam members, and other components, connected with a frame to allow a user to dynamically vary his stride path during exercise. An exercise device conforming to aspects of the present invention provides a foot path that adapts to the change in stride length rather than forcing the user into a fixed size path. A user's exertion level may have several components impacting the stride length provided by the machine, such as leg power, torso power, and (in embodiments with arm supports or exercise components) arm power. Other embodiments of the exercise device include a lockout device that selectively eliminates the variable stride features of the exercise device and allows the user to exercise in a stepping motion.
    Type: Application
    Filed: March 21, 2005
    Publication date: September 15, 2005
    Applicant: Nautilus, Inc.
    Inventors: Andrew Lull, Zachary Krapfl, Chester Kowalewski, Jonathan Watt
  • Publication number: 20050026752
    Abstract: The present invention provides for a variable stride exercise device having a variable size close curved striding path during use. The exercise device described and depicted herein utilizes various configurations of linkage assemblies, cam members, and other components, connected with a frame to allow a user to dynamically vary his stride path during exercise. An exercise device conforming to aspects of the present invention provides a foot path that adapts to the change in stride length rather than forcing the user into a fixed size path. A user's exertion level may have several components impacting the stride length provided by the machine, such as leg power, torso power, and (in embodiments with arm supports or exercise components) arm power. Other embodiments of the exercise device include a lockout device that selectively eliminates the variable stride features of the exercise device and allows the user to exercise in a stepping motion.
    Type: Application
    Filed: June 22, 2004
    Publication date: February 3, 2005
    Applicant: Nautilus, Inc.
    Inventors: Andrew Lull, Zachary Krapfl, Chester Kowalewski, Jonathan Watt