US 12,070,803 B2
Accessories for oscillating power tools
Thomas R. Kaye, Jr., Fallston, MD (US); and Bradley J. Nohr, Bel Air, MD (US)
Assigned to BLACK & DECKER INC., New Britain, CT (US)
Filed by BLACK & DECKER INC., New Britain, CT (US)
Filed on May 28, 2020, as Appl. No. 16/886,228.
Application 16/886,228 is a continuation of application No. 16/278,348, filed on Feb. 18, 2019, granted, now 10,702,927.
Application 16/278,348 is a continuation of application No. 15/406,940, filed on Jan. 16, 2017, granted, now 10,265,778, issued on Apr. 23, 2019.
Prior Publication US 2020/0290130 A1, Sep. 17, 2020
Int. Cl. B23B 31/10 (2006.01); B23D 61/00 (2006.01); B24B 23/04 (2006.01); B26D 7/26 (2006.01); B27B 19/00 (2006.01); B23B 31/19 (2006.01)
CPC B23B 31/10 (2013.01) [B23D 61/006 (2013.01); B24B 23/04 (2013.01); B26D 7/2614 (2013.01); B27B 19/006 (2013.01); B23B 31/19 (2013.01); B26D 7/2621 (2013.01); Y10T 279/33 (2015.01)] 16 Claims
OG exemplary drawing
 
1. An accessory for an oscillating power tool comprising:
a working portion defining and extending along a working axis and configured to perform an operation on a workpiece; and
an attachment portion coupled to the working portion, the attachment portion including: (a) a top wall lying in a first plane, having a top peripheral edge that forms a portion of a 12-point star shape, and having a generally U-shaped central opening extending along an attachment axis at an obtuse angle to the working axis, the U-shaped portion open to a first gap in the peripheral edge of the top wall, the top wall also including a plurality of openings spaced about the central opening; (b) a peripheral wall extending away from the top peripheral edge at an angle to the top wall, the peripheral wall having a plurality of sidewalls joined to form a portion of a 12-point star shape and defining a hollow space beneath the top wall, the peripheral wall including a second gap in communication with the first gap with the peripheral wall extending entirely around the top wall except for the second gap such that the peripheral wall is asymmetric relative to the working axis; (c) a bottom wall lying in a second plane that is parallel to the first plane, the bottom wall having an inner peripheral edge that forms a portion of a 12-point star shape, the bottom wall extending radially outward from the inner peripheral edge to an outer peripheral edge that is coupled to the working portion, and the bottom wall including a third gap in communication with the second gap with the bottom wall extending entirely around the top wall except for the third gap,
wherein the attachment portion is configured to be coupled alternately to: (a) a first attachment mechanism of a first oscillating power tool that includes a central projection receivable in the central opening and a plurality of projections receivable in the plurality of openings in the top wall; and (b) a second attachment mechanism of a second oscillating power tool that includes at least two legs receivable in the U-shaped opening and expandable to engage an underside of the top wall and a circumferential wall with an inner surface that forms at least a portion of a 12-point star shape to engage the peripheral wall.