Patents by Inventor Cheng-Hui Hsu

Cheng-Hui Hsu 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: 6807747
    Abstract: An improved structure tape rule housing, the tape rule housing comprised of a left case half and a right case half having a soft rubber pad around their top edges and bottom edges to thereby increase grasping friction and utilization comfort, enabling rule housing variability and greater practical value.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: October 26, 2004
    Inventor: Cheng-Hui Hsu
  • Patent number: 6804898
    Abstract: A tape rule marking implement in which a support member is additionally mounted on the ruler blade output opening at the front end of a tape rule, with a marking implement installed at the corner at one side of its anterior extremity, thereby providing for convenient marking when measurements are taken as well as higher practical value.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: October 19, 2004
    Inventor: Cheng-Hui Hsu
  • Patent number: 6766588
    Abstract: A drive-type tape ruler in which a spring disposed within the blade take-up spool constitutes a spring-loaded wheel that is installed at one or two sides of the blade take-up spool, enabling the blade take-up spool to accommodate the winding of a tape ruler blade that is approximately 2 to 2.5 times lengthier than possible with a conventional blade take-up spool of the same diameter and, furthermore, the torque of the spring-loaded wheel rewinds the tape ruler blade, thereby enhancing tape ruler utility and performance.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: July 27, 2004
    Inventor: Cheng-Hui Hsu
  • Patent number: 6760979
    Abstract: A stop block device of a measuring tape includes a stop block button with an improved structure that displaces a latch bracket having stop block surfaces to press down on the measuring tape.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: July 13, 2004
    Inventor: Cheng-Hui Hsu
  • Publication number: 20040118003
    Abstract: The present invention discloses a stop block device of a measuring tape, particularly a measuring tape capable of retracting the tape and increasing the buffer of stopping and blocking effect to prevent the shear force produced by excessive retracting speed. A stop block button, which is an improved structure, constitutes a stop block effect by pressing down the button to improve the life of the measuring tape and the safety to user.
    Type: Application
    Filed: December 24, 2002
    Publication date: June 24, 2004
    Inventor: Cheng-Hui Hsu
  • Patent number: 6742260
    Abstract: An improved structure art design knife that provides for stabler and safer manual grasping, the arrangement of which includes a front cover, a back cover, a hatch, a flat spring, and a blade holder mechanism. In addition to convenient blade replacement, the art design knife of the present invention contains a plurality of spare blades, thereby enhancing the utility of such structures and, furthermore, increasing practical value from a production standpoint.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: June 1, 2004
    Inventor: Cheng-Hui Hsu
  • Patent number: 6729028
    Abstract: The present invention discloses an improved structure of a cutter knife, comprising of a front casing, a rear casing, a front support pad, a rear support pad, a slider, a sliding bracket, a knife cartridge, a tail blade, a press button, a blade stopper, a stop block button and stopper button. Besides providing a convenient way of replacing the blades, the knife cartridge is capable of accommodating a plurality of spare blades, and the tail blade enhances the practicality and application of the cutter knife.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: May 4, 2004
    Inventor: Cheng-Hui Hsu
  • Patent number: 6694643
    Abstract: A shoelace adjustment mechanism that provides for fastening shoelaces on shoes in which a shoelace is contiguously routed through a tightening and securing structure consisting of a plurality of shoelace winding sheaves along with the shoelace adjustment mechanism disposed on the left vamp and the right vamp such that the arrangement is capable of the rapid shoelace tensioning and loosening, the shoelace adjustment mechanism of the invention herein thereby affording greater practical value.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: February 24, 2004
    Inventor: Cheng-Hui Hsu
  • Publication number: 20030204966
    Abstract: An improved structure tape rule outer housing, wherein the outer housing of the tape rule is comprised of a left case half, a right case half, and metal case panels to increase gripping friction and usage comfort as well as enhance tape rule design versatility to thereby raise overall practical value.
    Type: Application
    Filed: May 1, 2002
    Publication date: November 6, 2003
    Inventor: Cheng-Hui Hsu
  • Patent number: 6631802
    Abstract: A tool box drill bit retainer that provides for the containment of different diameter drill bits inside the tool box, the primary application of which is keeping larger size drill bits within the drill bit recess of the tool box. The improved structure of the drill bit retainer effectively enhances the orderly securing of drill bits in the tool box and increases product practicality.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: October 14, 2003
    Inventor: Cheng-Hui Hsu
  • Patent number: 6550155
    Abstract: A tape rule with an automatic blade extension mechanism in which the internal ruler blade reel is not equipped with a center-wound, spiral retraction spring. The torsion developed by winding the steel ruler blade around the reel is of sufficient magnitude such that when the ruler blade is released, it automatically extends to facilitate taking measurements. As such, the present invention is of higher industrial and practical value.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: April 22, 2003
    Inventor: Cheng-Hui Hsu
  • Publication number: 20030070950
    Abstract: A tool box drill bit retainer that provides for the containment of different diameter drill bits inside the tool box, the primary application of which is keeping larger size drill bits within the drill bit recess of the tool box. The improved structure of the drill bit retainer effectively enhances the orderly securing of drill bits in the tool box and increases product practicality.
    Type: Application
    Filed: October 15, 2001
    Publication date: April 17, 2003
    Inventor: Cheng-Hui Hsu
  • Patent number: 6536698
    Abstract: A dual mode tape rule blade arrestor structure that provides for an effective increase in tape rule rewind buffering to prevent excessive blade retrieval speeds that generate high impact sheering forces. The arrestor button of the present invention is pressed upward to temporarily halt tape rule rewinding, but can at the same time also be pressed downward and locked into the full constraint position. As such, the improved structure of the invention herein enhances tape rule service life as well as operating safety.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: March 25, 2003
    Inventor: Cheng-Hui Hsu
  • Patent number: D473778
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: April 29, 2003
    Inventor: Cheng-Hui Hsu
  • Patent number: D476214
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: June 24, 2003
    Inventor: Cheng-Hui Hsu
  • Patent number: D476585
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: July 1, 2003
    Inventor: Cheng-Hui Hsu
  • Patent number: D478292
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: August 12, 2003
    Inventor: Cheng-Hui Hsu
  • Patent number: D486407
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: February 10, 2004
    Inventor: Cheng-Hui Hsu
  • Patent number: D490005
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: May 18, 2004
    Inventor: Cheng-Hui Hsu
  • Patent number: D491082
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: June 8, 2004
    Inventor: Cheng-Hui Hsu