US 12,186,928 B2
Tubing cutter
Steven W. Hyma, Milwaukee, WI (US); Matthew W. Naiva, Wauwatosa, WI (US); and Chen Jian Fan, Tai Shan (CN)
Assigned to Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed by Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed on Apr. 13, 2021, as Appl. No. 17/229,443.
Application 17/229,443 is a continuation of application No. 16/172,138, filed on Oct. 26, 2018, abandoned.
Application 16/172,138 is a continuation of application No. 15/183,567, filed on Jun. 15, 2016, granted, now 10,150,225.
Claims priority of provisional application 62/175,846, filed on Jun. 15, 2015.
Claims priority of application No. 201520411748.0 (CN), filed on Jun. 15, 2015.
Prior Publication US 2021/0229307 A1, Jul. 29, 2021
Int. Cl. B26D 3/16 (2006.01); B23D 21/08 (2006.01); B26B 25/00 (2006.01); B26D 1/22 (2006.01)
CPC B26D 3/169 (2013.01) [B23D 21/08 (2013.01); B26B 25/005 (2013.01); B26D 1/22 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A tubing cutter, comprising:
a cutting wheel;
a pair of rollers, each roller having a groove that is configured to receive a flare of a cut workpiece;
a first housing defining a threaded cavity, the first housing coupled to the cutting wheel;
a second housing defining a wall surrounding an opening, the second housing coupled to the pair of rollers;
a shaft threadably engaging with the threaded cavity of the first housing and passing through the opening in the wall of the second housing, the shaft comprising:
a first threaded end and a second free end opposite the first threaded end;
a shaft axis extending from the first threaded end of the shaft to the second free end of the shaft, wherein rotation of the shaft around the shaft axis causes movement of the first housing relative to the second housing along the shaft axis to increase or decrease a distance between the cutting wheel and the pair of rollers;
an expanded section of the shaft located within a cavity of the second housing, the expanded section of the shaft having a width greater than a width of the opening such that the expanded section prevents the shaft from moving out of the opening of the second housing; and
a knob coupled to the second free end of the shaft outside the second housing, wherein the knob has a non-symmetrical shape defined by opposite circular sector portions and opposite lever portions, each lever portion extending along an imaginary tangent line from an adjacent circular sector portion to an associated end;
wherein the expanded section and the shaft are a single continuous part, wherein the expanded section is annular surrounding the shaft and the second housing includes a collar surrounding the opening and located adjacent the expanded section, and wherein the expanded section includes a surface that abuts the collar.