Patents by Inventor Yau C. Fang

Yau C. Fang 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).

  • Auxiliary lock with an extensible device
    Patent number: 4950008
    Abstract: An auxiliary lock is disclosed on which it is possible to change its length by turning and moving a combining plate to cause an extensible shell to turn and move around a cylinder so that a projection in the extensible shell may extend into one of two positioning holes in the cylinder to form the short length or in the other positioning hole to form the long length. At the same time, a connecting pin in a deadbolt moves in a U-shaped slot and a reversed U-shaped slot in a moving plate operable by a mechanism in the combining plate.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: August 21, 1990
    Assignee: Posse Lock Manufacturing Co., Ltd.
    Inventor: Yau C. Fang
  • Auxiliary lock with an extensible device
    Patent number: 4772055
    Abstract: An auxiliary lock has a base, an extending shell and a linking arm that, through holes, slots and projections disposed thereon connect adjustably together for lengthening or shortening the assembly while maintaining constant the length of the dead bolt exposed out of a cylinder into a faceplate.
    Type: Grant
    Filed: August 6, 1986
    Date of Patent: September 20, 1988
    Assignee: Posse Lock Manufacturing Co., Ltd.
    Inventor: Yau C. Fang
  • Tubular lock with an adjustable device for two-size setting
    Patent number: 4746154
    Abstract: This tubular lock has a device that can adjust its size into two kinds for fixing on a door. The device utilizes the movement of an extending plate and an auxiliary plate, changing their positions to either of the two sizes, but the lock still works in spite of the size change.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: May 24, 1988
    Assignee: Posse Lock Manufacturing Co., Ltd.
    Inventor: Yau C. Fang
  • Tubular door lock with a dead bolt adjustable in two sizes without anti-burglary device
    Patent number: 4736973
    Abstract: This invention concerns a tubular door lock with a dead bolt adjustable in two sizes without anti-burglary device. It contains an extending shell covering outside of the basic shell and able to move inward or outward so as to alter the length of the dead bolt to the bottom of the extending shell into two sizes--so-called 60 mm and 70 mm--for fixing on a door.
    Type: Grant
    Filed: November 21, 1986
    Date of Patent: April 12, 1988
    Assignee: Posse Lock Manufacturing Co., Ltd.
    Inventor: Yau C. Fang
  • Cylinder door lock with a dead bolt adjustable in two sizes
    Patent number: 4729586
    Abstract: This cylinder door lock has a base which contains a guarding plate having two notches--one is to link with a spring plate and a fixing cross pin and the other with a stopping plate. Covering outside of the base is an extending shell which has its bottom wall linked with an actuating plate having its two actuating hooks exposed outside the bottom wall so as to link with the actuating device of the knob. And by means of the extending of the extending shell, the distance between the actuating hooks and the dead bolt is able to be altered.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: March 8, 1988
    Assignee: Posse Lock Manufacturing Co. Ltd.
    Inventor: Yau C. Fang
  • Tubular door lock with an adjustable device
    Patent number: 4718706
    Abstract: This invention relates to a tubular door lock which mainly includes a basic shell, an extending shell, a dead bolt, two assembling plates, a safety bolt, a locking plate and an unlocking plate. Through apertures, notches and holes disposed thereon, it can connect seletively together in a short (60 mm) or long (70 mm) position, and is therefore able to change the distance between the knob and the faceplate of the lock via adjustment of the extending shell.
    Type: Grant
    Filed: July 1, 1986
    Date of Patent: January 12, 1988
    Assignee: Posse Lock Manufacturing Co., Ltd.
    Inventor: Yau C. Fang