ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,180, issued on April 29, was assigned to SRAM LLC (Chicago).
"Pneumatic only height adjust seat post assembly" was invented by Rafer Chambers (Colorado Springs, Colo.) and Charles Dunlap (Manitou Springs, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A seat post assembly for a bicycle includes a first tube having a first distal end and a second tube having a second distal end. A distance between the first distal end of the first tube and the second distal end of the second tube is at a maximum when the first tube is in a first position relative to the second tube. The seat post assembly also includes a first chamber and a second chamber that a...