Having Specified Shape Patents (Class 132/329)
  • Patent number: 4817643
    Abstract: A dental floss woven in a chinese finger cuff pattern is provided. The dental floss is woven with a sufficient number of fibers to be self-supporting. The chinese finger cuff weave allows for constriction of the dental floss about its longitudinal axis when tension is applied in the longitudinal direction. The hollow cylinder defined by the chinese finger cuff weave may be filled with fluoride or other cleaning substances such that when the dental floss has longitudinal tension applied to it the fluoride is released. The interstitial spaces between the fibers provides for a trapping action of food particles when longitudinal tension is applied.
    Type: Grant
    Filed: July 30, 1987
    Date of Patent: April 4, 1989
    Inventor: Mary Lou C. Olson
  • Patent number: 4805646
    Abstract: A toothpick has a body part with two body portions which are movable relative to one another to assume different angles. The toothpick can be filled with a substance which is then expelled by squeezing or displacing a part of it. Both ends of the toothpick can be formed as working ends with different sizes.
    Type: Grant
    Filed: July 24, 1987
    Date of Patent: February 21, 1989
    Inventor: Marat Shimenkov