US 12,186,864 B2
Power tool to tool bit extension adapter
Max R. Sawa, Palatine, IL (US)
Assigned to MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Sep. 1, 2023, as Appl. No. 18/459,652.
Application 18/459,652 is a division of application No. 16/753,023, granted, now 11,780,063, previously published as PCT/US2018/054919, filed on Oct. 9, 2018.
Claims priority of provisional application 62/570,297, filed on Oct. 10, 2017.
Prior Publication US 2023/0405777 A1, Dec. 21, 2023
Int. Cl. B25B 23/00 (2006.01)
CPC B25B 23/0035 (2013.01) 17 Claims
OG exemplary drawing
 
1. An extension adapter configured to couple a tool bit to a power tool, the power tool configured to drive the extension adapter and the tool bit about a rotational axis, the extension adapter comprising:
a body including a front portion, a rear portion, and a flange separating the front portion from the rear portion, the front portion having a larger diameter than the rear portion, the body also including an inner surface defining a bore configured to receive the tool bit; and
a collar moveable along the rear portion of the body between an unlocked position in which the tool bit is removable from the bore and a locked position in which the tool bit is secured to the body, the collar having a diameter that is substantially the same as the larger diameter of the front portion; and
a gasket coupled to the rear portion of the body and abutting the flange;
wherein the gasket is compressed between the flange and the collar when the collar is in the locked position to block dust and debris from entering the bore.