The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 2020
Filed:
Feb. 22, 2018
John C. Schmertz, Pittsburgh, PA (US);
Robert Godfrey Schmertz, Greenbelt, MD (US);
John C. Schmertz, Pittsburgh, PA (US);
Robert Godfrey Schmertz, Greenbelt, MD (US);
Other;
Abstract
A bicycle drivetrain including a first shaft and a second shaft which rotate in opposing directions, a first pedal connected to a first pedal crank connected to the first shaft and a second pedal connected to a second pedal crank connected to a second shaft, an engaged first spur gear and second spur gear attached to the first shaft and the second shaft, respectively, a first slip clutch mounted to the first shaft and connected to a main sprocket and a second slip clutch mounted to the second shaft, a first sprocket and a second sprocket having the same direction of rotation and attached to the first slip clutch and the second slip clutch, respectively, a rear sprocket attached to a rear wheel and connected to the main sprocket, and a plurality of mechanical stops which prevent unwanted rotation of the bicycle drivetrain.