Paul Andrew Carpenter

US Patent:

49289861, May 29, 1990

Filed:

May 6, 1988

Appl. No.:

7/190927

Inventors:

Paul R. Carpenter - Lakewood CO

Assignee:

P. D. Enterprises, Inc. - Lakewood CO

International Classification:

B62M 112

US Classification:

280234

Abstract:

An arm and leg powered cycle using a linear reciprocating motion of arm and leg drive members to provide power. An elongated bicycle chassis has a forward and a rear wheel, a seat with a back rest for the operator, and lower and central support members. The arm drive member includes a rotatably mounted housing in which a plunger linearly reciprocates when an operator "rows" the plunger, using handlebars attached thereto. Pulling on the arm plunger tightens a cable attached at one end to the plunger and at the other end to a chain engaging sprocket, the sprocket being constrained to rotation in one direction by a one-way dog. The chain engaging sprocket engages a drive chain on the pulling or "drive" stroke, thereby pulling the chain through the stroke. This motion is transferred to drive the rear wheel through a series of gears and a transmission chain. Pushing on the leg drive member creates a drive stroke of the same type, also providing power to the drive chain.