US 12,491,569 B2
Hole saw arbor having an adjustable connection mechanism
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 Jun. 20, 2022, as Appl. No. 17/844,106.
Application 17/844,106 is a continuation of application No. 16/760,926, granted, now 11,364,558, previously published as PCT/US2018/059021, filed on Nov. 2, 2018.
Claims priority of provisional application 62/719,244, filed on Aug. 17, 2018.
Claims priority of provisional application 62/581,105, filed on Nov. 3, 2017.
Prior Publication US 2022/0314342 A1, Oct. 6, 2022
Int. Cl. B23B 51/04 (2006.01)
CPC B23B 51/0473 (2013.01) [B23B 2260/02 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An arbor for a hole saw, the arbor comprising:
an arbor stem including at least one arm having a threaded portion configured to engage the hole saw;
an actuator rotatable about a central axis of the arbor to move the at least one arm, the actuator including a surface facing the at least one arm and a track, the track being recessed from the surface of the actuator; and
at least one post extending from the at least one arm to engage the track;
wherein the arm is movable in a radial direction in response to rotation of the actuator to vary a circumference of the arbor stem, and
wherein the actuator includes a ramp extending from the surface of the actuator.