Patents by Inventor James S. Cheng

James S. Cheng 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: 6298841
    Abstract: Light emitting rigid fracturable projectile-type marking ammunition are provided. The ammunition is a phosphorescent ball in the form of a spherical pellet or capsule that includes non-phosphorescent impact diffusing materials intimately admixed with phosphorescent materials. Non-phosphorescent pigments, fillers, and surfactants may also be included. The light emitting phosphorescent ball provides a luminous trail when discharged from the paintball gun and thus, may be used effectively in the dark.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: October 9, 2001
    Inventors: Richard T. Cheng, James S. Cheng
  • Patent number: 6082349
    Abstract: Light emitting rigid fracturable projectile-type marking ammunition and reusable resilient projectile-type ammunition are provided, along with kits of the ammunition with an exciter and optionally a paintball gun. The ammunition is a phosphorescent ball in the form of a spherical pellet or capsule that includes non-phosphorescent impact diffusing materials intimately admixed with phosphorescent materials. Non-phosphorescent pigments, fillers, and surfactants may also be included. The light emitting phosphorescent ball provides a luminous trail when discharged from the paintball gun and thus, may be used effectively in the dark.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: July 4, 2000
    Inventors: Richard T. Cheng, James S. Cheng
  • Patent number: 5762058
    Abstract: Light emitting rigid, fracturable projectile-type marking ammunition is disclosed. The marking ammunition is in the form of a phosphorescent paintball. An exciter is adaptable for use with paintball guns to excite the phosphorescent paintball to emit light. The exciter couples to the muzzle of a paintball gun. The light emitting paintball provides a luminous trail when discharged from the paintball gun. A paintball according to the instant invention comprises a spherical pellet or capsule defining an interior chamber, and a filler contained in the chamber. In one embodiment, the capsule is impregnated with a phosphorescent material. In an alternative embodiment, a phosphorescent material is mixed with the filler. The phosphorescent material absorbs light when exposed to a light source, and after the light source is removed, emits light. A paintball being discharged from a paintball gun enters the exciter. Upon detecting the presence of a paintball, the exciter is triggered to produce a high intensity light.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: June 9, 1998
    Inventors: Richard T. Cheng, James S. Cheng