Patents by Inventor Chang-Wen Tsaur

Chang-Wen Tsaur 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: 7036191
    Abstract: A lower stop of a zipper comprises a male stop formed by a lower portion and a high portion. An upper inner side of the lower portion has a downward hook and an upper top of the hook has a recess. One side of the recess has a stopper. A lower end of the downward hook is formed with an inclined groove; and a female stop has a buckle at an upper portion thereof and a block-like embedded seat at a lower portion thereof. An inner lateral wall of a top of the buckle is an upward protrusion and an upper side of the upward protrusion has cambered slot. An embedded groove penetrates through the embedded seat. An inner lateral wall of the embedded seat has a sliding groove which is communicated with the embedded groove.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: May 2, 2006
    Inventor: Chang-Wen Tsaur
  • Publication number: 20050060848
    Abstract: An upper stopper structure of a zipper has two pull strips. Each pull strip has a respective teeth strip and each teeth strip is installed with a plurality of teeth. The right upper stopper includes an end stop and an inner stopper. A connecting plate is connected to the inner stopper, and an elastic fixing strip is extended from the end stop. The connecting plate is at an inner side; and the fixing strip is at an outer side of the teeth strip. The left upper stopper is a stop unit. An outer side of the top of the left upper stopper has a protruded stop block. The stop block is connected to one pull strip. The pull of the zipper is easily guided to pass through the teeth by using the stop structure, but the pull can not leave out of the upper stopper structure.
    Type: Application
    Filed: September 22, 2003
    Publication date: March 24, 2005
    Inventor: Chang-Wen Tsaur
  • Publication number: 20040205942
    Abstract: A lower stop of a zipper comprises a male stop formed by a lower portion and a high portion. An upper inner side of the lower portion has a downward hook and an upper top of the hook has a recess. One side of the recess has a stopper. A lower end of the downward hook is formed with an inclined groove; and a female stop has a buckle at an upper portion thereof and a block-like embedded seat at a lower portion thereof. An inner lateral wall of a top of the buckle is an upward protrusion and an upper side of the upward protrusion has cambered slot. An embedded groove penetrates through the embedded seat. An inner lateral wall of the embedded seat has a sliding groove which is communicated with the embedded groove.
    Type: Application
    Filed: April 21, 2003
    Publication date: October 21, 2004
    Inventor: Chang-Wen Tsaur
  • Patent number: 6701585
    Abstract: A stop device for upper stops and a pull of a Nylon zipper has an upper stop formed by a left stop and a right stop; a pull being installed on one end of a zipper strip. The upper end surfaces and the bottom of the left stop and right stop are formed with protruded stop blocks, and the pull has a left and a right teeth channel, tops or bottoms of a respective teeth channel are formed with stop grooves. When the left stop and right stop enter into the two teeth channels of the pull, the left stop and right stop enter into the stop grooves. Since the stop blocks are resisted against the stop grooves, the left stop and right stop are buckled in the pull. Moreover, the left stop and right stop have the function of preventing the pull from separating from the zipper strips.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: March 9, 2004
    Inventor: Chang-Wen Tsaur
  • Publication number: 20040020018
    Abstract: A stop device for upper stops and a pull of a Nylon zipper has an upper stop formed by a left stop and a right stop; a pull being installed on one end of a zipper strip. The upper end surfaces and the bottom of the left stop and right stop are formed with protruded stop blocks, and the pull has a left and a right teeth channels tops or bottoms of which are formed with stop grooves. When the left stop and right stop enter into the two upper teeth channels of the pull, the left stop and right stop enter into the stop grooves. Since the stop blocks are resisted by the stop grooves, the left stop and right stop are buckled in the pull. Moreover, the left stop and right stop have the function of preventing the pull from separating from the zipper strips.
    Type: Application
    Filed: July 31, 2002
    Publication date: February 5, 2004
    Inventor: Chang-Wen Tsaur