US 12,138,702 B2
Portable pipe threader
Joseph J. Pechstein, West Bend, WI (US); Sean T. Kehoe, Hartland, WI (US); Aaron Grode, Germantown, WI (US); and Timothy Hilger, Waterford, WI (US)
Assigned to MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Mar. 31, 2021, as Appl. No. 17/218,919.
Application 17/218,919 is a continuation in part of application No. 17/086,755, filed on Nov. 2, 2020.
Claims priority of provisional application 63/002,621, filed on Mar. 31, 2020.
Claims priority of provisional application 62/929,462, filed on Nov. 1, 2019.
Prior Publication US 2021/0229200 A1, Jul. 29, 2021
Int. Cl. B23G 1/24 (2006.01); B23G 1/22 (2006.01)
CPC B23G 1/225 (2013.01) [B23G 1/24 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A portable pipe threader comprising:
a stand upon which a pipe is supported;
a housing having a set of guide rails extending from an end of the housing and a battery receptacle recessed within the housing;
a carriage supported by the guide rails, the carriage supporting at least one pipe threading tool;
a spindle including a plurality of chuck jaws for clamping the pipe, the chuck jaws configured to move radially inward along a travel path toward an outer surface of the pipe;
a sensor system configured to determine a location of the chuck jaws along the travel path and relative to the outer surface of the pipe, the sensor system configured to output a signal corresponding to the location of each of the chuck jaws when engaged with the outer surface of the pipe;
a die head supported on the carriage, the die head including a plurality of cutting dies and a toothed portion; and
an electronic controller in communication with the sensor system, wherein, in response to the signal output from the sensor system, the electronic controller is configured to determine an outer diameter of the pipe and actuate a single motor to drive an input gear coupled to the toothed portion of the die head to extend or retract the plurality of cutting dies at the same time to a same radial position depending on the outer diameter of the pipe, wherein the plurality of cutting dies do not operate independent of each other.