Allsop, Inc.

Cirrus Cycles, Inc.

Paul E Barkley

James D Allsop

David E Calapp

Charlie Heggem

Calvin O Collander

Bicycle handlebar suspension

A bicycle seat suspension assembly has a parallelogram pivoting linkage connecting the frame with the seat. The parallelogram linkage has a frame link, seat link, upper link, and lower link. An upper spring assembly pivotally engages the frame link on one end and extends up to pivotally engage the upper link. A lower spring assembly pivotally engages the frame link on one end and the lower link on the other end. The suspension assembly is movable between an uppermost position wherein the upper and lower spring assemblies are pre-compressed, and a second position wherein the upper and lower spring assemblies are further compressed. In some embodiments one or both of the spring assemblies have a compression spring that can be swapped out with another compression spring to adjust the spring rate of the assembly.

Suspension systems and methods for bicycles

A bicycle including a novel bicycle frame and seat support as disclosed. Bicycle frame includes a top tube as a first section extends substantially vertically from the second section extends diagonally downward towards the rear tube to which two frame stays which are joined to chain stays adjacent the rear wheel hub are attached. A center tube extends from a bottom bracket to the top tube section adjacent where the frame stays are joined to the top tube. A beam seat support formed out of a pair of elongated beams is attached to the frame top tube first section. A bicycle seat is attached to the end of the beam seat support.

Shock absorber for a vehicle

Bicycle

Bicycle frame

Growing community of inventors

Bellingham, WA, United States of America

Paul E Barkley