Patents by Inventor John Lachenmayer

John Lachenmayer 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 drive mechanism
    Publication number: 20050051992
    Abstract: A mechanism for a pedaled vehicle such as a bicycle. The drive mechanism includes a first and second pedal connected to a first and second pedal guide. The first and second pedal guide are movably situated in parallel interior tracks. The tops and bottoms of both pedal guides are connected by a first and second chain. The first chain runs over a single first idler gear. The second chain runs over a first free-wheel, a bottom idler gear, and a second free-wheel. The first and second free-wheels convert the linear motion of each pedal and pedal guide into a unidirectional force that is applied to a drive shaft.
    Type: Application
    Filed: October 12, 2004
    Publication date: March 10, 2005
    Inventor: John Lachenmayer
  • Bicycle drive mechanism
    Publication number: 20030173755
    Abstract: A mechanism for a pedaled vehicle such as a bicycle. The drive mechanism includes a first and second pedal connected to a first and second pedal guide. The first and second pedal guide are movably situated in parallel interior tracks. The tops and bottoms of both pedal guides are connected by a first and second chain. The first chain runs over a single first idler gear. The second chain runs over a first free-wheel, a bottom idler gear, and a second free-wheel. The first and second free-wheels convert the linear motion of each pedal and pedal guide into a unidirectional force that is applied to a drive shaft.
    Type: Application
    Filed: February 27, 2003
    Publication date: September 18, 2003
    Inventor: John Lachenmayer