Patent · US Active

Drive system

US11034403B2 · kind B2 · utility

1Cited by
10References
12Claims
0Family size

Inventor

Key dates

Filing dateJul 27, 2019
Grant dateJun 15, 2021
Priority date—
Expiry dateFeb 26, 2040

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB62M2009/005
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A drive system comprises a frame, a first extension member, a second extension member, a crank shaft, a hub, a bearing, a cross shaft, a first arm assembly, a second arm assembly, a first chain assembly, a second chain assembly, a first rotatable pedal, a second rotatable pedal, and a steering column. The first arm assembly comprises a first frame arm, a first connecting arm, a first main arm, and a first crank arm. The second arm assembly comprises a second frame arm, a second connecting arm, a second main arm, and a second crank arm. The first arm assembly further comprises a first roller track assembly. The second arm assembly further comprises a second roller track assembly.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.