Patents by Inventor Zhi-Yuan Zheng

Zhi-Yuan Zheng 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).

  • Part recycle device of a document file
    Patent number: 6659676
    Abstract: A part recycle device of a document file includes two spaced first through holes formed in a clamping member, two spaced second through holes formed in a side wall of an outer plate, two screw members, a press plate, and two nuts. Each of the two screw members extends through one of the two spaced first through holes and one of the two spaced second through holes. The press plate has a first end face formed with two spaced third through holes, and a second end face provided with two spaced protruding rings each formed with a polygonal recess aligning with one of the two spaced third through holes. Each of the two nuts is received in the polygonal recess of one of the two spaced protruding rings of the press plate, and may be engaged with one of the two screw members.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: December 9, 2003
    Inventor: Zhi-Yuan Zheng
  • Part recycle device of a document file
    Publication number: 20030133742
    Abstract: A part recycle device of a document file includes two spaced first through holes formed in a clamping member, two spaced second through holes formed in a side wall of an outer plate, two screw members, a press plate, and two nuts. Each of the two screw members extends through one of the two spaced first through holes and one of the two spaced second through holes. The press plate has a first end face formed with two spaced third through holes, and a second end face provided with two spaced protruding rings each formed with a polygonal recess aligning with one of the two spaced third through holes. Each of the two nuts is received in the polygonal recess of one of the two spaced protruding rings of the press plate, and may be engaged with one of the two screw members.
    Type: Application
    Filed: January 11, 2002
    Publication date: July 17, 2003
    Inventor: Zhi-Yuan Zheng
  • Sucker-type suspension structure
    Patent number: 6550735
    Abstract: A sucker-type suspension structure includes a sucker, a sucker cover, and a suspension hook. The sucker has an outer wall provided with a pull plate which has a distal end formed with a rod passage hole for passage of a pivot rod. The sucker cover is mounted on the outer wall of the sucker, and has a center formed with a plate passage hole for passage of the pull plate of the sucker. The suspension hook has a top formed with a U-shaped plate receiving space for receiving the pull plate of the sucker. The plate receiving space of the suspension hook has two side walls each having a first section formed with a rod passage hole for passage of the pivot rod, and a second section formed with a cover press lug rested on an outer wall of the sucker cover.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: April 22, 2003
    Inventor: Zhi-Yuan Zheng