Milwaukee Electric Tool Corporation

Bryan C Ward

Peter Russell Heath

Steven W Hyma

Austin J Kazda

Andrew J Weber

Jacob N Zimmerman

Marcus Wechselberger

Christopher J Rechlin

Matthew B Lois

Michael S Steele

Robb Dennert

Christopher S Hoppe

Aaron S Blumenthal

James Wekwert

Max R Sawa

James Ernest Pangerc

Leonard F Mikat-Stevens

Kenneth D Peterson

Caroline Hope

Andrew J Schulz

Brett A Parendo

Marcus Carli

An arbor for a hole saw an arbor stem, an actuator, and at least one post. The arbor stem includes at least one arm having a threaded portion configured to engage the hole saw. The actuator is rotatable about a central axis of the arbor to move the at least one arm. The actuator includes a surface facing the at least one arm and a track. The track is recessed from the surface of the actuator. The at least one post extends from the at least one arm to engage the track. The arm is movable in a radial direction in response to rotation of the actuator to vary a circumference of the arbor stem.

Hole saw arbor having an adjustable connection mechanism

A cutting tool includes a hole saw, a pilot bit, and an arbor assembly. The arbor assembly includes a shank, a body, a first engagement member moveable relative to the shank, the first engagement member engaging the hole saw to releasably secure the hole saw to the shank, and a second engagement member moveable relative to the shank, the second engagement member engaging the pilot bit to releasably secure the pilot bit to the shank. The body is moveable to a first position where the hole saw and the pilot bit are secured to the arbor assembly, to a second position where the first engagement member disengages the hole saw, allowing removal of the hole saw from the shank, and to a third position where the second engagement member disengages the pilot bit, allowing removal of the pilot bit from the shank.

Hole saw arbor assembly

A hole saw including a plurality of sidewall openings is provided. The sidewall openings are shaped and grouped in patterns that improve debris ejection of the hole saw and that allow for easy access to the interior of the hole saw for manual debris removal by the user. The opening groups are space from each other by larger uninterrupted areas such that the hole saw has a high strength despite the number and size of openings provided in the saw sidewall.

Hole saw with hex sidewall holes

A saw blade includes a cutting portion having consecutive first, second, and third cutting teeth. Each cutting tooth includes a rake surface, a relief surface, and a tip. The first cutting tooth includes a protrusion extending from the relief surface of the first cutting tooth. The cutting portion includes a first gullet positioned between the first cutting tooth and the second cutting tooth and a second gullet sized differently than the first gullet positioned between the second cutting tooth and the third cutting tooth. The cutting portion includes a first pitch extending over the first gullet from the tip of the first cutting tooth to the tip of the second cutting tooth. The cutting portion includes a second pitch different than the first pitch extending over the second gullet from the tip of the second cutting tooth to the tip of the third cutting tooth.

Saw blade including a cutting tooth with a protrusion

A fastener driver includes an outer cylinder having a cylindrical first end and an opposite, second end, an inner cylinder positioned within the outer cylinder, a moveable piston positioned within the inner cylinder, and a driver blade attached to the piston and movable therewith between a top-dead-center position and a bottom-dead-center position along a drive axis. The outer cylinder defining a longitudinal axis and a storage chamber configured to be filled with pressurized gas. The inner cylinder being in communication with the pressurized gas within the storage chamber. A frame has first end adjacent the cylindrical first end of the outer cylinder and a second end extending outward from the cylindrical first end of the outer cylinder in the direction of the longitudinal axis. The frame is integrally formed with the outer cylinder as a single piece and a nosepiece supported by the frame.

Powered fastener driver

A fastener driver includes a cylinder, a moveable piston positioned within the cylinder, and a driver blade attached to the piston and movable therewith between a top-dead-center (TDC) position and a bottom-dead-center (BDC) position. The driver blade including a body and a plurality of teeth extending therefrom. A lifter is operable to move the driver blade from the BDC position toward the TDC position. The lifter including a plurality of lugs engageable with the teeth of the driver blade when moving the driver blade from the BDC position toward the TDC position. The body of the driver blade has a first thickness and at least a first of the teeth has a second thickness that is greater than the first thickness and the first tooth has a stepped configuration relative to the body.

Hole saw

A dust collector is operable to collect dust and debris generated during operation of a power tool. The dust collector includes a mounting base configured to couple to the power tool, a tether coupled to the mounting base, and a shroud extending from the mounting base. The mounting base defines a longitudinal axis. The tether is configured to be wrapped around a portion of the power tool. The shroud includes a first end adjacent the mounting base, a second end operable to contact a workpiece, and a sleeve extending between the first end and the second end.

Dust collector for power tool

A fastener driver includes a cylinder, a moveable piston positioned within the cylinder, and a driver blade attached to the piston and movable therewith between a top-dead-center (TDC) position and a bottom-dead-center (BDC) position. A lifter is operable to move the driver blade from the BDC position toward the TDC position. A transmission is provided for providing torque to the lifter. The lifter includes a hub and a plurality of lugs extending therefrom. Each lug is engageable with the driver blade when moving the driver blade from the BDC position toward the TDC position. The hub and the lugs are integrally formed as a single piece. The lifter includes a first side and an opposite second side. Each of the first side and the second side is flat.

Powered fastener driver with lifter

A fastener driver includes an outer cylinder having a first end and an opposite, second end, an inner cylinder positioned within the outer cylinder, a moveable piston positioned within the inner cylinder, a driver blade attached to the piston and movable therewith between a top-dead-center position near the second end and a bottom-dead-center position near the first end along a drive axis and a frame that extends from the first end. The frame is integrally formed with the outer cylinder as a single piece.

A hand tool for driving a fastener is provided. The hand tool includes gearing that interconnects a splined socket to a rotatable or trigger actuator and increases a rotational speed of the splined socket relative to the actuator. The hand tool may include a power tool receiver or an independent motor to drive rotation of the splined socket to advance or retract a fastener from a threaded shaft. By increasing the speed and conserving rotational inertia, the hand tool reduces the time to secure a fastener on a threaded shaft. A rotatable nut is provided. The rotatable nut can slideably orient along a first axis and threadedly orient along a second axis to fasten to an adjacent surface.

Tool for driving a fastener

A dust collector operable to collect dust and debris generated during operation of a power tool includes a mounting base configured to couple to the power tool. The mounting base defines a longitudinal axis. The dust collector also includes a shroud extending from the mounting base. The shroud includes a first end adjacent the mounting base, a second end operable to contact a workpiece, a sleeve extending between the first end and the second end, and a spring biasing the second end away from the first end. The second end is movable relative to the first end against the spring.

A drilling tool includes a step drill bit and an arbor assembly. The arbor assembly includes a shank having a first end, a second end opposite the first end, and a longitudinal axis extending through the first and second ends. The first end of the shank is removably coupled to the step drill bit, and the second end of the shank is configured to be coupled to a power tool. The arbor assembly includes a sleeve moveable along the shank parallel to the longitudinal axis, and a ball bearing disposed on the sleeve and moveable with the sleeve. The ball bearing engages the step drill bit to releasably secure the step drill bit to the shank. When the sleeve moves toward the second end of the shank, the ball bearing moves radially inward and disengages the step drill bit, allowing removal of the step drill bit from the shank.

Growing community of inventors

Wauwatosa, WI, United States of America

Bryan C Ward