US 11,896,987 B1
Systems for high production exterior wall spraying
Robert W. Kinne, Columbia Heights, MN (US); James C. Schroeder, Ramsey, MN (US); William M. Blenkush, Becker, MN (US); and Barry W. Mattson, Elk River, MN (US)
Assigned to Graco Minnesota Inc., Minneapolis, MN (US)
Filed by Graco Minnesota Inc., Minneapolis, MN (US)
Filed on Dec. 7, 2020, as Appl. No. 17/114,094.
Claims priority of provisional application 62/944,908, filed on Dec. 6, 2019.
Claims priority of provisional application 62/944,918, filed on Dec. 6, 2019.
Claims priority of provisional application 62/944,895, filed on Dec. 6, 2019.
Int. Cl. B05B 15/00 (2018.01); B05B 13/00 (2006.01); B05B 15/68 (2018.01); B05B 12/12 (2006.01); B05B 12/00 (2018.01)
CPC B05B 13/005 (2013.01) [B05B 12/002 (2013.01); B05B 12/124 (2013.01); B05B 15/68 (2018.02)] 21 Claims
OG exemplary drawing
 
1. A mobile lift for moving an arm along a wall, the lift comprising:
a mobile base;
an arm extending out from and beyond the mobile base, the arm configured to articulate in three dimensions relative to the mobile base;
one or more motors configured to articulate the arm in the three dimensions relative to the mobile base;
at least one sensor supported by the arm and configured to output an indication of a separation distance between the sensor and the wall;
a user input configured to receive an input corresponding to a command to move an end of the arm along the wall in a first direction, the first direction being one of vertically or horizontally along the wall;
a sprayer configured to spray fluid from a spray nozzle supported by the arm onto the wall while the end of the arm moves along the wall in the first direction; and
control circuitry configured to:
receive the indication of the separation distance between the sensor and the wall, receive the input,
based on receiving the input and the indication of the separation distance, control the one or more motors to articulate the arm in at least two dimensions so that the end of the arm moves along the wall in the first direction responsive to the input while maintaining the separation distance responsive to the indication of the separation distance by at least one of the one or more motors causing the arm to lengthen or shorten horizontally relative to the mobile base based on the indication from the sensor to maintain the separation distance simultaneous with the end of the arm moving along the wall in the first direction.