US 11,925,993 B2
Accessories for oscillating power tools
Andrew Reist, Springfield, MA (US); Matthew Christopher Green, Amherst, MA (US); Matthew Savarino, Simsbury, CT (US); and Kevin M. Howe, Ludlow, MA (US)
Assigned to BLACK & DECKER INC., New Britain, CT (US)
Filed by BLACK & DECKER INC., New Britain, CT (US)
Filed on Jan. 26, 2021, as Appl. No. 17/158,877.
Claims priority of provisional application 62/966,275, filed on Jan. 27, 2020.
Prior Publication US 2021/0229198 A1, Jul. 29, 2021
Int. Cl. B23D 61/00 (2006.01); B23D 49/11 (2006.01); B23D 51/10 (2006.01); B25F 3/00 (2006.01)
CPC B23D 61/006 (2013.01) [B23D 49/11 (2013.01); B23D 51/10 (2013.01); B25F 3/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An accessory comprising:
an attachment portion configured to be coupled to an oscillating power tool;
a working portion coupled to the attachment portion and extending generally along a longitudinal axis, the working portion having a planar wedge shaped body bounded at least partially by a non-cutting rear end with a first width, a front cutting edge opposite the rear end with a second width that is greater than the first width, a first side cutting edge extending from a first end of the rear end to a first end of the front cutting edge at a first angle to the longitudinal axis, and a second side cutting edge opposite the first side cutting edge and extending from a second end of the rear end to a second end of the front cutting edge at a second angle to the longitudinal axis, wherein the front cutting edge includes a straight central portion and first and second convex curved lateral portions continuous with and extending laterally outward from the central portion, the central portion having a third width that is at least half of the second width.