US 12,486,721 B2
Core drill assembly
Jonathan E. Schmitz, Wauwatosa, WI (US); Terry L. Timmons, Oconomowoc, WI (US); Karly M. Schober, Milwaukee, WI (US); Dane Laitinen, Wauwatosa, WI (US); Andrew Medeiros-Nicholson, Wauwatosa, WI (US); Paul W. Eiche, Oconomowoc, WI (US); Casey A. Ketterhagen, Hartland, WI (US); Sara Burch, Milwaukee, WI (US); and Guo Qian Qin, Dongguan (CN)
Assigned to MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Apr. 4, 2024, as Appl. No. 18/627,045.
Application 18/627,045 is a continuation of application No. 17/524,605, filed on Nov. 11, 2021, granted, now 11,982,184.
Claims priority of provisional application 63/113,505, filed on Nov. 13, 2020.
Claims priority of application No. 202120373677.5 (CN), filed on Feb. 10, 2021.
Prior Publication US 2024/0247545 A1, Jul. 25, 2024
Int. Cl. F16M 11/00 (2006.01); B25H 1/00 (2006.01); E21B 3/02 (2006.01); E21B 7/02 (2006.01)
CPC E21B 7/027 (2013.01) [B25H 1/0042 (2013.01); E21B 3/02 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A drill assembly comprising:
a core drill; and
a stand upon which the core drill is mounted, the stand including
a base supportable upon a mounting surface;
a mast defining a longitudinal axis and extending upward from the base;
a carriage moveably coupled to the mast and configured to support the core drill thereon;
first and second legs pivotably coupled to the base between a deployed position, in which the legs extend away from the base, and a stowed position, the first and second legs being located on opposite sides of the base;
a biasing member that biases each of the legs towards the stowed position; and
a leg extension formed on a distal end of each of the legs, wherein the leg extension is pivotable between a deployed position, in which the leg extensions are oriented perpendicular to the respective legs, and a stowed position, in which the leg extensions are oriented coaxial with the respective legs.