Patents by Inventor Chun-Ming Cheng

Chun-Ming 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: 5653618
    Abstract: A multipurpose flotation blanket including a blanket body formed of two opposite flotation layers peripherally sealed and covered with a water proof covering and defining an inflatable air chamber, a handle unit detachably fastened to the blanket body for carrying by hand when the blanket body is folded up and arranged into the form of a hand bag, and an air valve assembly made on the blanket body for letting air be driven into or out of the air chamber, and wherein when the two opposite flotation layers of the blanket body are pulled apart, a current of air is inducted into the air chamber to inflate the blanket body; the air valve assembly has an inlet nozzle, a plug rod fitted into the inlet nozzle to seal the air passage, and a pull strip connected to the inlet nozzle for pulling the inlet nozzle away from the plug rod.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: August 5, 1997
    Inventor: Chun-Ming Cheng
  • Patent number: 5230645
    Abstract: A life preserver formed of a flat, rectangular sheet body made of a cellular low density polyethylene in thickness within 0.5-1.5 m/m, the sheet body including a male fastener and a female fastener aligned on the longitudinal center line of the bottom edge thereof at two opposite ends, a zip fastener on the longitudinal center line of the bottom thereof at the center, self-sticking fastening elements longitudinally symmetrically aligned along two opposite longer sides of teh bottom edge thereof, and male and female snap fasteners alternatively arranged along the border of the top edgte thereof. The zip fastener is unfastened for inserting the user's head. With the fastening elements thereof respectively connected together, the life preserver is put on the user to serve as a life jacket.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: July 27, 1993
    Inventor: Chun-Ming Cheng
  • Patent number: 5226184
    Abstract: A floatable wave subduing blanket made from cellular low density polyethylene in a rectangular shape having a plurality of cylindrical inflatable floats detachably fastened to the four sides thereof. The cylindrical inflatable floats subdue water waves as the blanket floats on the water for carrying a person.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: July 13, 1993
    Inventor: Chun-Ming Cheng