Patents by Inventor Dustin E. Lawhon

Dustin E. Lawhon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Door closer
    Patent number: 10704313
    Abstract: A door closer with an electric motor-assisted closing feature, that may generate its own power to assist in closing, and controls the speed of opening and closing of the door during generation is disclosed. Embodiments of the present disclosure are realized by a motorized door closer that electrically creates a latch boost force for a closing door. The door closer includes a motor disposed to operatively connect to a door so that the door will be moved toward closed when the motor moves, and a position sensor to determine a position of the door. A processor is programmed to exert a closing force on the door in the latch boost region or when it otherwise detects that a motor assist is needed.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: July 7, 2020
    Assignee: Assa Abloy Accessories And Door Controls Group, Inc.
    Inventors: Blue Houser, Dustin E. Lawhon, Peter E. Zasowski
  • DOOR CLOSER
    Publication number: 20180148970
    Abstract: A door closer with an electric motor-assisted closing feature, that may generate its own power to assist in closing, and controls the speed of opening and closing of the door during generation is disclosed. Embodiments of the present disclosure are realized by a motorized door closer that electrically creates a latch boost force for a closing door. The door closer includes a motor disposed to operatively connect to a door so that the door will be moved toward closed when the motor moves, and a position sensor to determine a position of the door. A processor is programmed to exert a closing force on the door in the latch boost region or when it otherwise detects that a motor assist is needed.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 31, 2018
    Inventors: Blue Houser, Dustin E. Lawhon, Peter E. Zasowski
  • Door closer
    Patent number: 9869117
    Abstract: A door closer with an electric motor-assisted closing feature, that may generate its own power to assist in closing, and controls the speed of opening and closing of the door during generation is disclosed. Embodiments of the present disclosure are realized by a motorized door closer that electrically creates a latch boost force for a closing door. The door closer includes a motor disposed to operatively connect to a door so that the door will be moved toward closed when the motor moves, and a position sensor to determine a position of the door. A processor is programmed to exert a closing force on the door in the latch boost region or when it otherwise detects that a motor assist is needed.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: January 16, 2018
    Assignee: YALE SECURITY INC.
    Inventors: Blue Houser, Dustin E. Lawhon, Peter E. Zasowski
  • DOOR CLOSER
    Publication number: 20160024831
    Abstract: A door closer with an electric motor-assisted closing feature, that may generate its own power to assist in closing, and controls the speed of opening and closing of the door during generation is disclosed. Embodiments of the present disclosure are realized by a motorized door closer that electrically creates a latch boost force for a closing door. The door closer includes a motor disposed to operatively connect to a door so that the door will moved toward closed when the motor moves, and a position sensor to determine a position of the door. A processor is programmed to exert a closing force on the door in the latch boost region or when it otherwise detects that a motor assist is needed.
    Type: Application
    Filed: March 14, 2014
    Publication date: January 28, 2016
    Applicant: Yale Security, Inc.
    Inventors: Blue Houser, Dustin E. Lawhon, Peter E. Zasowski