公开(公告)号：US11503763B2

公开(公告)日：2022-11-22

申请号：US16732895

申请日：2020-01-02

Applicant: TECHTRONIC CORDLESS GP

Inventor： Christopher A. Holman ,  Ronald J. Hoffman ,  J. Eric Nolin

IPC: A01D34/73 ,  A01D34/416

Abstract: Trimmer heads for trimmers are provided. A trimmer head includes a drive plate defining a lug slot, and a locking lug, the locking lug movably positioned in the lug slot and movable between an unlocked position and a locked position. A trimmer head further includes a drive plate cover connectable to the drive plate such that the locking lug is disposed between the drive plate and the drive plate cover. A trimmer head farther includes at least one operational head, the at least one operational head connectable to the drive plate. The connected operational head is locked to the drive plate when the locking lug is in the locked position and the connected operational head is unlocked from the drive plate when the locking lug is in the unlocked position.

公开(公告)号：US20210254344A1

公开(公告)日：2021-08-19

申请号：US17148152

申请日：2021-01-13

Applicant: TECHTRONIC CORDLESS GP

Inventor： Christopher A. Holman ,  Ronald J. Hoffman

IPC: E04D13/076 ,  B08B5/02 ,  B25G1/04

Abstract: A gutter cleaner comprising: a fan assembly configured to generate airflow to blow debris from a gutter; a cage at least partially disposed around the fan assembly and configured to prevent ingress of clogging debris into the fan assembly; and at least one wheel configured to roll along the gutter and at least partially support the gutter cleaner, wherein the at least one wheel is non-powered, and wherein the gutter cleaner is self-aligning on the gutter.

公开(公告)号：US20240335972A1

公开(公告)日：2024-10-10

申请号：US18612464

申请日：2024-03-21

Applicant: Techtronic Cordless GP

Inventor： Christopher A. Holman ,  Lance Eckard ,  Ronald H. Hoffman ,  Brett Steenwyk

IPC: B27B17/02 ,  B27B17/08 ,  B27B17/12

CPC classification number: B27B17/02 ,  B27B17/08 ,  B27B17/12

Abstract: A chainsaw and a drive system therefor are provided. The drive system includes a motor operably coupled to drive a motor shaft and an output drive operably coupled to an output shaft. The motor shaft and the output shaft are mechanically coupled to one another by a transmission system to transfer energy from the motor to the output drive. The motor and motor shaft are coupled to a housing. The transmission system allows the output shaft to selectively change positions along a circumferential direction relative to a rotational axis of the motor shaft to selectively loosen or tighten a connection of the output drive to a chain at a guide bar.

公开(公告)号：US20220280957A1

公开(公告)日：2022-09-08

申请号：US17680443

申请日：2022-02-25

Applicant: TECHTRONIC CORDLESS GP

Inventor： Ronald J. Hoffman ,  Christopher A. Holman ,  Scott W. Reed

IPC: B05B7/24

Abstract: Fluid delivery systems for use with power tools are provided. A fluid delivery system can include a reservoir configured to contain fluid; a manifold including a plurality of nozzles configured to be disposed at an airflow outlet of the power tool, the manifold being in fluid communication with the reservoir; a pump configured to supply fluid from the reservoir to the manifold to dispense the fluid through at least some of the plurality of nozzles; and an attachment element configured to selectively couple the manifold with the airflow outlet of the power tool.