Fiskars Brands, Inc.

Alterra Holdings Corporation

Blount, Inc.

Oregon Tool, Inc.

Edgar A Dallas

Phillip A Montague

Evan Pickett

John A Nason

Paul W Poehlmann

Jonathan Ziring

Bradford J Parrish

Frederick T Karl

Erik Jensen

Scott Hartley

Shaun Conley

Peter B Whitlock

Michael J Brock

Benjamin J Nyssen

Charlie N Alfaro

Noah Erickson

Edward M Wallace

Steve Rohman

Isaac Safdie-Miller

Cutting elements for a chainsaw chain

A method includes operating an electric implement to move or cut material in an outdoor environment, wherein operating the electric implement creates acoustic sound and managing the acoustic sound by selecting an operating frequency for the electric implement and controlling an electric motor of the electric implement in accordance with the operating frequency.

Noise limited power tools and equipment

Disclosed herein is a power tool that includes a direct current power source, motor, and motor controller. In some embodiments, the power source comprises a battery pack configured to supply current at a nominal voltage in excess of 100 VDC. Embodiments of the tool are configured to operate at a high power at least comparable to tools operating at lower voltages, and to produce noise levels in operation that are less than 65 decibels.

Noise limited power tool

Embodiments herein describe methods and systems for controlling the power state of a tool. A tool is placed into an active mode upon initial power up, as typically indicated by one or more indicators. The tool is automatically placed into an inactive mode upon the expiration of a timer, if the tool motor was not activated. If the tool is activated, such as by pressing the tool switch, prior to expiration of the timer, the timer resets. A display is provided to signal the user as to the current active status and/or current mode of the tool.

Power tool activation control systems and methods

Electrical plug

Electrical socket

Embodiments of clutches for electric tools, and related methods, are disclosed herein. An electric tool may include an electric motor, a drive shaft coupled between the electric motor and a cutting instrument, and a clutch coupled between the electric motor and the drive shaft. The clutch may include a motor portion having an exterior surface, a drive shaft portion having an exterior surface and forming a mated assembly when mated with the motor portion, and a spring around the motor and drive shaft portions. The spring may exert a holding force on the mated assembly, such that rotation of the motor portion in a first direction loosens the spring and reduces the friction holding force until a torque between the motor and drive shaft portions exceeds the holding force, causing rotation of the motor portion to be decoupled from rotation of the drive shaft portion.

Clutch for electric tool

Embodiments of a pole-attached power tool system, and related methods, are disclosed herein. In some embodiments, a pole-attached power tool system may include a pole having a first end, a second end, and an interior region; a handle disposed proximate to the first end of the pole; an electric motor disposed proximate to the first end of the pole; a power tool disposed proximate to the second end of the pole; and a drive member disposed within the interior region, the drive member mechanically coupled with the electric motor and the power tool to transfer power generated by the electric motor to the power tool.

Pole-attached power tool systems

Pole saw

Embodiments of clutches for electric pole saws, and related methods, are disclosed herein. An electric pole saw may include an electric motor, a drive shaft coupled between the electric motor and a cutting instrument, and a clutch coupled between the electric motor and the drive shaft. The clutch may include a motor portion having an exterior surface, a drive shaft portion having an exterior surface and forming a mated assembly when mated with the motor portion, and a spring around the motor and drive shaft portions. The spring may exert a holding force on the mated assembly, such that rotation of the motor portion in a first direction loosens the spring and reduces the friction holding force until a torque between the motor and drive shaft portions exceeds the holding force, causing rotation of the motor portion to be decoupled from rotation of the drive shaft portion.

Clutch for electric pole saw

A blood tracking light includes a first light source emitting blue light, a second light source emitting red light, and a third light source emitting cyan light. The light sources combine to create a light beam that provides a distinct visual appearance to blood. The light sources may include one or more LEDs, including blue LEDs, red LEDs, and cyan LEDs. The intensity of the light sources may be varied to enhance the distinct visual appearance of the blood.

Blood tracking system

The invention relates to a portable lighting device including a body having a battery compartment, a head coupled to the body, a light source coupled to the head, the light source requiring a first voltage, and a circuit coupled to the light source. The battery compartment is configured to selectively receive batteries of different sizes. The circuit converts voltages of different magnitudes to the first voltage.

Multi battery type flashlight

The present invention relates to a portable lighting device comprising a body, a light source coupled to the body and configured to emit a beam of light along a central axis, a head assembly rotatably coupled to the body, and a filter assembly rotatably coupled to the body. The filter assembly has a rotational axis and a plurality of filters offset from the central axis. Rotation of the head assembly rotates the filter assembly to align different filters of the plurality of filters along the central axis on an output side of the light source.

Portable lighting device

A blood tracking system includes a light source having a first LED configured to emit light of a first color and a second LED configured to emit light of a second color. The light of the first color and the light of the second color are mixed to produce light of a third color when the first LED and the second LED are activated. The light of the third color highlights blood.

A blood tracking system, comprising a light source comprising a first LED configured to emit light of a first color and a second LED configured to emit light of a second color is disclosed. The light of the first color and the light of the second color are mixed to appear as light of a third color when the first LED and the second LED are activated; and wherein the light of a third color is effective for highlighting blood. A method of highlighting a red material comprising illuminating the red material with both red and blue light is also disclosed.

Growing community of inventors

Beaverton, OR, United States of America

Edgar A Dallas