US 12,264,469 B2
Drain cleaning machine
Michael C. Reed, Milwaukee, WI (US); and Sean T. Kehoe, Hartland, WI (US)
Assigned to MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Oct. 4, 2023, as Appl. No. 18/480,590.
Application 18/480,590 is a continuation of application No. 17/335,463, filed on Jun. 1, 2021, granted, now 11,821,188.
Application 17/335,463 is a continuation of application No. 16/535,321, filed on Aug. 8, 2019, granted, now 11,021,859, issued on Jun. 1, 2021.
Claims priority of provisional application 62/785,328, filed on Dec. 27, 2018.
Claims priority of provisional application 62/746,040, filed on Oct. 16, 2018.
Claims priority of provisional application 62/726,582, filed on Sep. 4, 2018.
Claims priority of provisional application 62/717,411, filed on Aug. 10, 2018.
Prior Publication US 2024/0026669 A1, Jan. 25, 2024
Int. Cl. E03C 1/302 (2006.01); B08B 9/045 (2006.01)
CPC E03C 1/302 (2013.01) [B08B 9/045 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A drain cleaning machine for moving a snake in a drain, the drain cleaning machine comprising:
a housing;
a snake passage in the housing and defining a snake axis;
a motor configured to move the snake in the drain when the snake is arranged along the snake axis and the motor is activated;
a switch trigger configured to move between a first switch trigger position, in which the motor is not activated, and a second switch trigger position, in which the motor is activated, the switch trigger biased to the first switch trigger position;
an actuating lever moveable between a deactivated position, in which the drain cleaning machine is configured to disengage the snake, and an activated position, in which the drain cleaning machine is configured to engage the snake to move the snake; and
a switch linkage configured to be moved by the actuating lever between a first switch linkage position, in which the switch trigger is moved to the first switch trigger position, and a second switch linkage position, in which the switch trigger is moved to the second switch trigger position;
wherein in response to the actuating lever moving from the deactivated position to the activated position, the switch linkage is moved from the first switch linkage position to the second switch linkage position, and in response to the actuating lever moving from the activated position to the deactivated position, the switch linkage is moved from the second switch linkage position to the first switch linkage position.