US 12,447,538 B2
Hole saw arbor assembly
Bryan C. Ward, Wauwatosa, WI (US)
Assigned to MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed by MILWAUKEE ELECTRIC TOOL CORPORATION, Brookfield, WI (US)
Filed on Oct. 20, 2021, as Appl. No. 17/505,804.
Application 17/505,804 is a continuation of application No. 16/704,735, filed on Dec. 5, 2019, granted, now 11,154,940.
Application 16/704,735 is a continuation of application No. 15/712,268, filed on Sep. 22, 2017, granted, now 10,532,412, issued on Oct. 14, 2020.
Claims priority of provisional application 62/398,619, filed on Sep. 23, 2016.
Prior Publication US 2022/0097150 A1, Mar. 31, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B23B 51/04 (2006.01)
CPC B23B 51/0473 (2013.01) [B23B 51/0426 (2013.01); B23B 51/044 (2013.01); B23B 2231/0204 (2013.01); B23B 2240/00 (2013.01); B23B 2251/02 (2013.01); B23B 2251/606 (2013.01); B23B 2260/022 (2013.01); B23B 2260/136 (2013.01); Y10T 408/8957 (2015.01); Y10T 408/95 (2015.01)] 11 Claims
OG exemplary drawing
 
1. A cutting tool comprising:
a cutting accessory;
a pilot bit; and
an arbor assembly including
a shank removably coupled to the cutting accessory and to the pilot bit,
a body moveable relative to the shank,
a first engagement member moveable relative to the shank, the first engagement member configured to engage the cutting accessory to releasably couple the cutting accessory to the shank, and
a second engagement member moveable relative to the shank, the second engagement member configured to engage the pilot bit to releasably couple the pilot bit to the shank,
wherein the body is moveable between a first position where the first engagement member engages the cutting accessory and the second engagement member engages the pilot bit, securing the cutting accessory and the pilot bit to the arbor assembly, a second position where the first engagement member disengages the cutting accessory, allowing removal of the cutting accessory from the shank, and a third position where the second engagement member disengages the pilot bit, allowing removal of the pilot bit from the shank;
wherein moving the body from the first position to the second position moves the first engagement member radially inwards towards the shank, wherein radially inward movement of the first engagement member disengages the cutting accessory, and
wherein moving the body from the second position to the first position moves the first engagement member radially outwards from the shank, wherein the radially outward movement of the first engagement member engages the cutting accessory.