Patents by Inventor Chin Feng Wang

Chin Feng Wang 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).

  • Patent number: 6394155
    Abstract: A locking device for a wooden planing machine is fixed on an upper surface of a machinery base combined movably with four posts located at four corners of a base of a wooden planing machine, including two brackets each located at two sides of the upper surface of the machinery base and having two sleeves separated with an opening on a bottom plate, a long drive shaft having two ends fixed with a cam located in the opening, and four tightening pins each passing through a coil spring placed in each of the sleeves and having its end fixed with a tightening member which is fixed with the end of each tightening pin and has a front concave surface to fit around the convex surface of the posts. Then a handle of the drive shaft is pressed down from an unlocked position to a locking position or vice versa, wherein the tightening pins are moved to tighten or loosen the tightening members against or from the posts to lock or unlock the machinery base.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: May 28, 2002
    Inventor: Chin Feng Wang
  • Patent number: 6161448
    Abstract: A brake lever device includes a grip part and a mounting arm extending transversely from the grip part wherein the mounting arm is pivotally connected to a body mounted to the handlebar. The mounting arm has a first slot with a pin movably extending therethrough which is connected to a bracket to which the cast lug barrel of the brake cable is fixedly connected. The mounting arm has a second slot with a sleeve movably extending therethrough and an adjusting bolt extends through the second slot and threadedly transversely extends through the sleeve. A connecting device connected between the pin and the sleeve. The second slot is oriented substantially in parallel with the direction of the tension force of the brake cable.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: December 19, 2000
    Inventor: Chin-Feng Wang
  • Patent number: 5878638
    Abstract: A positioning device for a driving shaft of a lathe chuck includes a casing, a motor received in the casing with a driving shaft of the motor extending through a first end and a second end of the casing, and a disk disposed to the first end of the casing and threadedly mounted to the driving shaft. The disk has at least one hole defined therethrough and the first end of the casing has a plurality of holes defined therethrough so that a pin is removably extending through the hole in the disk and received in one of the holes in the first end of the casing to position the driving shaft to which the lathe chuck is connected.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: March 9, 1999
    Assignee: Colovos Co., Ltd.
    Inventor: Chin Feng Wang
  • Patent number: D401247
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: November 17, 1998
    Assignee: Colovos Co., Ltd.
    Inventor: Chin Feng Wang