Timothy David Radtke

US Patent:

20220362869, Nov 17, 2022

Filed:

May 16, 2022

Appl. No.:

17/745097

Inventors:

- Brookfield WI, US
Keegan P. Fager - Waukesha WI, US
Timothy J. Radtke - New Berlin WI, US
Paul Rossetto - Milwaukee WI, US

International Classification:

B23G 1/24

Abstract:

A pipe threader includes a housing, an electric motor, a battery, a die holder, and a die locking mechanism. The die locking mechanism receives torque from the electric motor and rotates as a result. A cutting die is received in the die holder and the locking mechanism rotationally locks the cutting die in the die holder. The locking mechanism includes a first lock ring and a second lock ring. The pipe threader includes a drive assembly including an electric motor, a multi-stage planetary transmission that receives torque from the motor, and a worm drive that receives torque from the transmission. The pipe threader includes an inertial measurement unit and an electronic processer. The processor receives data from the inertial measurement unit, generates a relative position of the pipe threader by applying a Kalman filter, determining whether the relative position exceeds a threshold, and decreases the motor speed in response.

US Patent:

20230093786, Mar 23, 2023

Filed:

Sep 9, 2019

Appl. No.:

16/565381

Inventors:

- Brookfield WI, US
Timothy Radtke - New Berlin WI, US
Daniel Garces - Waukesha WI, US
Ian C. Zimmermann - Milwaukee WI, US

International Classification:

B25F 5/00
F04B 17/03
F04B 1/34
F04B 7/00
F04B 7/02

Abstract:

A hydraulic pump includes a work port, a high-flow piston, multiple high-pressure pistons, and an unloading valve. The work port couples to a fluid supply line of a hydraulic tool. The high-flow piston supplies fluid along a first flow path to the work port. The high-pressure pistons supply fluid along a second flow path to the work port. The unloading valve is fluidly coupled to the first flow path and the second flow path, and actuatable between an open state and a closed state. The unloading valve is configured to (i) permit fluid to flow from the high-flow piston to the work port in the open state, (ii) inhibit fluid from flowing from the high-flow piston to the work port in the closed state, and (iii) actuate from the open state to the closed state when a pressure of the fluid in the second flow path exceeds a threshold pressure.