Christopher Boulton Bartlett
Engineers at Lincoln Pl, Boulder, CO

5201782, Apr 13, 1993

May 26, 1992

7/888978

Christopher B. Bartlett - Boulder CO

G01B 5255

3320319

A bicycle wheel truing tool includes a middle and two outer elongated rigid segments having the same lengths and shapes. The segments are pivotally connected together to permit erecting of the tool from a storage condition in which the segments are retracted to a nested relationship to an operational condition in which the segments are extended to an end-to-end relationship. The tool has a length in the storage condition which is about one-third that in the operational condition. Each tool segment is similarly progressively twisted along its longitudinal extent such that the opposite end portions of the segment lie in respective planes oriented in a generally transverse relationship to one another. The truing tool also includes a pair of releasably adjustable clamping mechanism pivotally connecting opposite end portions of the middle segment with adjacent end portions of the two outer segments. In the operational condition of the tool, one outer segment at one end portion thereof can be temporarily fixedly mounted to an end of the wheel axle.

8181977, May 22, 2012

Apr 8, 2009

12/384692

Christopher B. Bartlett - Boulder CO, US

B62M 1/12

280233, 280234, 2802421, 280244, 280247

A bicycle arm-drive apparatus includes a stationary mounting structure, an arm drive input mechanism, a drive motion transmission mechanism, and a plurality of connectors. One end of the mounting structure attaches to the front-center portion of the bicycle. The arm drive input mechanism includes a pair of control arms that pivotally attach to the other end of the mounting structure and generally extend rearward and outward from there. The operator grips each control arm, inputting arm power by driving them fore-and-aft. The drive motion transmission mechanism includes a pair of connecting rod assemblies running down opposite sides of the bicycle frame between the control arms and bicycle pedals. A plurality of connectors link the connecting rod assemblies to the pedals and control arms in order to transmit control arm fore-and-aft movement via the connecting rod assemblies to the pedals to enable the arm power to assist with bicycle pedaling.