US 12,439,849 B2
Power tool having a variable height or speed
William E. Colber, Lavonia, GA (US); Dayu Feng, Seneca, SC (US); James C. Ferrell, Elberton, GA (US); Jonathan R. Feldkamp, Anderson, SC (US); and Dongyu Wang, Hendersonville, TN (US)
Assigned to TECHTRONIC CORDLESS GP, Anderson, SC (US)
Filed by TECHTRONIC CORDLESS GP, Anderson, SC (US)
Filed on Sep. 8, 2023, as Appl. No. 18/244,002.
Application 18/244,002 is a continuation of application No. 16/774,785, filed on Jan. 28, 2020, abandoned.
Claims priority of provisional application 62/799,437, filed on Jan. 31, 2019.
Prior Publication US 2023/0413725 A1, Dec. 28, 2023
Int. Cl. A01D 34/82 (2006.01); A01D 34/68 (2006.01); A01D 34/74 (2006.01)
CPC A01D 34/824 (2013.01) [A01D 34/68 (2013.01); A01D 34/74 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A lawnmower comprising:
a base chassis;
a first wheel;
a height-adjustment assembly disposed between the base chassis and the first wheel to selectively raise and lower the base chassis, wherein the height-adjustment assembly comprises:
a wheel bracket comprising a plurality of bracket slots, wherein the wheel bracket is rotatable about a height-adjustment axis, and wherein each of the plurality of bracket slots is spaced apart circumferentially about the height-adjustment axis;
a selection rail adjustably coupled to the plurality of bracket slots; and
an adjustment handle comprising a trigger coupled to the selection rail, wherein actuating the trigger releases the selection rail from one of the plurality of bracket slots to permit rotation of the wheel bracket when the adjustment handle is moved in a predetermined roto-translational motion.