Patents by Inventor Chih-Yaung Chu

Chih-Yaung Chu 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).

  • Publication number: 20080100006
    Abstract: A quick installment and removal tool anvil and adaptor assembly has an anvil and an adaptor. The anvil extends from the tool body of air/electric driving tool. The circumferential wall of the anvil is extended to the free end of the connection unit, and the circumference of anvil in the connection unit is equipped with the vertically concave dented groove. The adaptor comprises one shaft rod, two insert pins threaded through the shaft rod, one spring installed around the shaft rod, a washer installed between the spring and insert pin, and a cylinder body enclosing the shaft rod, the spring, washer and the insert pins, and a collar for stopping the shaft rod from slipping off. A tool body of air/electric driving tool in conjunction with the adaptors of different functions will receive multi-functions without the spending of buying different tools.
    Type: Application
    Filed: January 7, 2008
    Publication date: May 1, 2008
    Inventor: Chih-Yaung CHU
  • Publication number: 20060232024
    Abstract: A quick installment and removal tool anvil and adaptor: The anvil is extruded from the tool body of air/electric tool, the circumferential wall of the anvil is extended to the free end of the connection flat, and the circumference of anvil in the connection flat is equipped with the vertically concave dented groove. The adaptor comprises one shaft rod, two insert pins—threaded through the shaft rod, one spring—placed on the shaft rod, one washer—placed between the spring and insert pin, one cylinder body—contained shaft rod, spring, washer and insert pins, and one collar—for stopping the shaft rod from slipping off. It's understood that this invention will enable the operator to change the adaptors in accordance with the working requirements. In other words, one tool body of air/electric tool in conjunction with the adaptors of different functions will receive multi-functions without the spending of buying different tools.
    Type: Application
    Filed: April 5, 2005
    Publication date: October 19, 2006
    Inventor: Chih-Yaung Chu
  • Patent number: 6431803
    Abstract: An instantaneous clamping/unclamping mechanism for a CNC machine tools is provided. The two stage procedure tool separating function includes an oil cylinder with a piston rod passing through its inner part and engaged with a first piston for tool separating therein and a second piston for tool presetting installed at the bottom of the first piston and formed in slidable relation with the piston rod. The space in the oil cylinder is therefore separated by the two pistons into upper, middle and lower three oil flowing chambers. Further, an adjusting screw is provided at the bottom of the piston rod and is connected with the tool pot. Two mechanism valves are provided for controlling the direction of oil flow for operating the piston rod to perform two stage procedures of tool separation. The position of the two valves is controlled by a valve position changeover mechanism.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: August 13, 2002
    Assignee: Fair Friend Enterprise Co, Ltd.
    Inventor: Chih-Yaung Chu
  • Patent number: 6332604
    Abstract: Disclosed herein is a clamping and positioning mechanism for the inclined axis of two-axes rotary tables comprising an annular recessed slot formed along the outer surface of a stationary supporting frame. In this slot, there is installed a piston with a large cross sectional area and a plurality of connecting rods are in connection with the piston. These connecting rods are penetrated through corresponding plurality of respective through holes which are bored through the stationary supporting frame, and are extended until the surface of an axle bush of the inclined axis. There are plurality of double diameter holes opened on the axle bush so as to accept a plurality of double diameter brake members passing through those corresponding double diameter holes and screw combine with the extended ends of the connecting rods respectively. A spring is provided to regularly and elastically pressing against the piston such that the double diameter brake members are under relaxed position.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: December 25, 2001
    Assignee: Fair Friend Enterprise Co., Ltd.
    Inventor: Chih-Yaung Chu