US 11,738,817 B2
Adjustable seatpost
Christopher Shipman, Chicago, IL (US); and Brian Jordan, Highland Park, IL (US)
Assigned to SRAM, LLC, Chicago, IL (US)
Filed by SRAM, LLC, Chicago, IL (US)
Filed on Sep. 18, 2020, as Appl. No. 17/25,346.
Application 17/025,346 is a continuation of application No. 16/433,665, filed on Jun. 6, 2019, granted, now 10,807,667.
Application 16/433,665 is a continuation of application No. 15/399,105, filed on Jan. 5, 2017, granted, now 10,358,180, issued on Jul. 23, 2019.
Prior Publication US 2021/0001941 A1, Jan. 7, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. B62J 1/08 (2006.01); B62K 19/36 (2006.01); B62J 43/23 (2020.01); B62J 43/30 (2020.01)
CPC B62J 1/08 (2013.01) [B62J 43/23 (2020.02); B62J 43/30 (2020.02); B62K 19/36 (2013.01); B62J 2001/085 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A seat post assembly for a bicycle, the seat post assembly comprising:
a first tube having a first distal end;
a second tube having a second distal end, the first tube and second tube movable relative to one another to establish a distance between the first distal end and the second distal end along a tube axis;
a first pressure chamber having a loaded pressure proportional to a load applied along the tube axis;
a second pressure chamber having a second pressure not proportional to the load;
a flow path connecting the first pressure chamber and the second pressure chamber; and
a valve having an isolator disposed along the flow path and configured to move between a closed position closing the flow path and an open position opening the flow path between the first pressure chamber and the second pressure chamber,
a head affixed to the second distal end of the upper tube, the head including an electronics module and a saddle clamp mechanism.