Patents by Inventor Lawrence E. Chaffin

Lawrence E. Chaffin 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).

  • Lift glide door lock assembly and lift glide window lock assembly and dual lift glide door lock assembly and dual lift glide window lock assembly
    Patent number: 11008775
    Abstract: Hardware for a lift glide door assembly and lift glide window assembly provides ease of opening with an operational opening assist that urges the door or window to an open position on operation of an opening handle by use of a cable drive system. A lock mechanism actuates a lock pin, blocks opening gear mechanisms from operating and extends a security bolt for locking. A guide blade is provided for assisting the door during opening or closing operations.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: May 18, 2021
    Inventors: Lawrence E Chaffin, John R Glover
  • Lift glide door lock assembly and lift glide window lock assembly
    Patent number: 10526829
    Abstract: Hardware for a lift glide door assembly and lift glide window assembly provides ease of opening with an operational opening assist that urges the door or window to an open position on operation of an opening handle. A lock mechanism actuates a lock pin, blocks opening gear mechanisms from operating and extends a security bolt for locking. A guide blade is provided for assisting the door during opening or closing operations.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: January 7, 2020
    Inventors: Lawrence E Chaffin, John R Glover
  • LIFT GLIDE DOOR LOCK ASSEMBLY & LIFT GLIDE WINDOW LOCK ASSEMBLY & DUAL LIFT GLIDE DOOR LOCK ASSEMBLY & DUAL LIFT GLIDE WINDOW LOCK ASSEMBLY
    Publication number: 20190085593
    Abstract: Hardware for a lift glide door assembly and lift glide window assembly provides ease of opening with an operational opening assist that urges the door or window to an open position on operation of an opening handle by use of a cable drive system. A lock mechanism actuates a lock pin, blocks opening gear mechanisms from operating and extends a security bolt for locking. A guide blade is provided for assisting the door during opening or closing operations.
    Type: Application
    Filed: November 20, 2018
    Publication date: March 21, 2019
    Inventors: Lawrence E Chaffin, John R Glover
  • LIFT GLIDE DOOR LOCK ASSEMBLY & LIFT GLIDE WINDOW LOCK ASSEMBLY & DUAL LIFT GLIDE DOOR LOCK ASSEMBLY & DUAL LIFT GLIDE WINDOW LOCK ASSEMBLY
    Publication number: 20170275916
    Abstract: Hardware for a lift glide door assembly and lift glide window assembly provides ease of opening with an operational opening assist that urges the door or window to an open position on operation of an opening handle. A lock mechanism actuates a lock pin, blocks opening gear mechanisms from operating and extends a security bolt for locking. A guide blade is provided for assisting the door during opening or closing operations.
    Type: Application
    Filed: June 1, 2017
    Publication date: September 28, 2017
    Inventors: Lawrence E. Chaffin, John R. Glover
  • LIFT GLIDE DOOR LOCK ASSEMBLY & LIFT GLIDE WINDOW LOCK ASSEMBLY
    Publication number: 20170159325
    Abstract: Hardware for a lift glide door assembly and lift glide window assembly provides ease of opening with an operational opening assist that urges the door or window to an open position on operation of an opening handle. A lock mechanism actuates a lock pin, blocks opening gear mechanisms from operating and extends a security bolt for locking. A guide blade is provided for assisting the door during opening or closing operations.
    Type: Application
    Filed: December 1, 2016
    Publication date: June 8, 2017
    Inventors: Lawrence E. Chaffin, John R. Glover