Patents by Inventor Chin-Tung Yu

Chin-Tung Yu 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: 6708409
    Abstract: A cigar cutting device includes a body with an aperture for an insertion of an end of a cigar, and two blades are movably inserted in two open ends of the body. A first end of each of the blades is located in the aperture and a base is connected to a second end of each of the blades. A holding ring is rotatably connected to each of the two bases.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: March 23, 2004
    Inventor: Chin-Tung Yu
  • Publication number: 20030188433
    Abstract: A cigar cutting device includes a body with an aperture for an insertion of an end of a cigar, and two blades are movably inserted in two open ends of the body. A first end of each of the blades is located in the aperture and a base is connected to a second end of each of the blades. A holding ring is rotatably connected to each of the two bases.
    Type: Application
    Filed: April 4, 2002
    Publication date: October 9, 2003
    Inventor: Chin-Tung Yu
  • Patent number: 6571800
    Abstract: A tobacco filling device includes a base with an outlet defined in a first end thereof and a cover is pivotally connected to a second end of the base. A pushing member is movably engaged with a slot defined in a top surface of the base. A plurality of pawls are connected to a top surface of the pushing member and each pawls has an end extending upward and away from the outlet. A knob is connected to the pushing member.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: June 3, 2003
    Inventor: Chin-Tung Yu
  • Patent number: 5664331
    Abstract: A cigar cutter includes a housing having an opening formed in the middle portion for engaging with a cigar. A cutter blade is slidably engaged in the housing and movable across the opening for cutting the cigar. A safe guard includes a pair of parallel panels for engaging onto the middle portion of the housing for shielding the cutter blade and for preventing the cutter blade from hurting a user. The housing includes one or more guiding grooves, and the safe guard includes one or more projections for engaging with the guiding groove and for guiding the relative movement between the safe guard and the housing. The guiding grooves each includes two ends having an orifice for engaging with the projection of the safe guard and for maintaining the safe guard in the open position and the enclosed position.
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: September 9, 1997
    Inventor: Chin-Tung Yu
  • Patent number: D473339
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: April 15, 2003
    Inventor: Chin-Tung Yu
  • Patent number: D388902
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: January 6, 1998
    Inventor: Chin-Tung Yu