John Donald Wolfe

US Patent:

20230031967, Feb 2, 2023

Filed:

Jul 28, 2021

Appl. No.:

17/387179

Inventors:

- Carmel IN, US
John A. Wolfe - Cicero IN, US

International Classification:

E05F 15/616
E05F 1/10

Abstract:

An exemplary method involves operating a door operator coupled to a door. The door operator includes a motor operable to move the door in at least one direction and a controller operable to control the motor. The method generally involves a calibration procedure including: with the door at a first position and the door having an initial speed, initiating, by the controller, measurement of a time duration; in response to the door reaching a target speed different from the initial speed, ceasing, by the controller, measurement of the time duration; and determining, by the controller, a maximum speed based on the time duration. The method further includes performing at least one operation based upon the maximum speed.

US Patent:

20210372191, Dec 2, 2021

Filed:

Apr 8, 2021

Appl. No.:

17/225615

Inventors:

- Carmel IN, US
Jason Fodstad - Zionsville IN, US
Adithya Gangadhar Shetty - Bangalore, IN
John A. Wolfe - Cicero IN, US
David V. Toloday - Martinsville IN, US

International Classification:

E05F 15/73
E05F 15/614

Abstract:

A retrofit module configured for use with a door closer having a pinion. The retrofit module generally includes a case, an output shaft, a motor, and a control assembly. The output shaft is rotatably mounted in the case, and is configured for rotational coupling with the pinion. The motor is mounted to the case, and is operable to rotate the output shaft in a door-opening direction. The control assembly is mounted to the case, and is configured to operate the motor to drive the output shaft in the door-opening direction in response to an actuating signal.