Patents by Inventor Chiang-Tung Tsai

Chiang-Tung Tsai 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).

  • Publication number: 20060221297
    Abstract: An eyeglass temple unit includes a connecting piece and a temple piece. The connecting piece is adapted to be connected to a lens unit, and is formed with a hole defined by a hole-defining wall. The hole-defining wall is formed with a plurality of first teeth. The temple piece is formed with a stud which extends into the hole so as to be pivotable about an axis defined by the stud, and which is formed with a plurality of second teeth. The second teeth engage the first teeth so as to permit positioning of the temple piece on the connecting piece at a desired angular position relative to the axis.
    Type: Application
    Filed: April 4, 2005
    Publication date: October 5, 2006
    Inventor: Chiang-Tung Tsai
  • Patent number: 7090346
    Abstract: Eyeglasses have a lens member, a frame member and two temples. The lens member includes opposite front and rear lens surfaces, two through holes at left and right ends of the lens member, and an insert hole disposed between the through holes. The frame member includes a middle frame portion abutting against the front lens surface of the lens member, two retaining frame portions formed respectively on left and right ends of the middle frame portion and extending respectively through the through holes in the lens member, and an insert bar extending rearwardly from the middle frame portion and inserted into the insert hole in the lens member. The retaining frame portions abut against the rear lens surface of the lens member. The temples extend respectively and rearwardly from the retaining frame portions of the frame member.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: August 15, 2006
    Inventor: Chiang-Tung Tsai
  • Publication number: 20060119790
    Abstract: Eyeglasses have a lens member, a frame member and two temples. The lens member includes opposite front and rear lens surfaces, two through holes at left and right ends of the lens member, and an insert hole disposed between the through holes. The frame member includes a middle frame portion abutting against the front lens surface of the lens member, two retaining frame portions formed respectively on left and right ends of the middle frame portion and extending respectively through the through holes in the lens member, and an insert bar extending rearwardly from the middle frame portion and inserted into the insert hole in the lens member. The retaining frame portions abut against the rear lens surface of the lens member. The temples extend respectively and rearwardly from the retaining frame portions of the frame member.
    Type: Application
    Filed: December 8, 2004
    Publication date: June 8, 2006
    Inventor: Chiang-Tung Tsai
  • Patent number: 6820978
    Abstract: A pair of eyeglasses includes a lens member formed with left and right retention holes respectively disposed adjacent to opposites sides thereof, and an arcuate groove that extends between the left and right retention holes, that is indented inwardly from a front face and that has two end portions. An elongated connecting member of a temple unit has two end segments extending respectively and rearwardly through the end portions of the groove, and an intermediate segment that is disposed within the groove and that interconnects the end segments. Temples are respectively pivoted to the end segments which are respectively formed with engaging tongues projecting frontwardly into and engaging the retention holes in the lens member.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: November 23, 2004
    Inventor: Chiang-Tung Tsai
  • Patent number: 4842399
    Abstract: An assembly includes a rimless spectacle frame, a spectacle lens, and a tough cord. The frame has an inverted U-shaped portion formed in its inward surface with an open-ended lens receiving slot for engaging with the upper peripheral portion of the lens. Each end of the inverted U-shaped portion has a counterbore formed therethrough. The cord extends through two counterbores in the inverted U-shaped portion and is integrally formed with two enlarged end portions which are confined within the large-diameter outer end portions of the counterbores respectively. One of the interengaging surfaces between the lens and the cord has a slot so that they can be engaged with each other, thereby retaining the lens on the frame with the cord.
    Type: Grant
    Filed: January 29, 1988
    Date of Patent: June 27, 1989
    Assignee: Lien-Chiang Optician's Company, Ltd.
    Inventor: Chiang-Tung Tsai