US Patent 11389003 Portable chair

A folding chair can include a seat pan being formed by a pair of seat bars. The seat pan can be tensioned by a pair of vertical legs. The chair can also include a backrest formed by a pair of diagonally extending backrest bars, a front frame formed by a pair of cross bars, a rear frame formed by rear cross bars, and a pair of armrests. The vertical legs can each be provided with a lower leg and an upper leg. The inner leg can be configured to telescope out of the outer leg and at least one of the vertical legs can be provided with a latch for locking the outer leg to the inner leg. The latch can include a trigger and a projection can be configured to rotate the projection out of a slot formed in the inner leg.