Patents by Inventor Sam Chau

Sam Chau 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).

  • Plug for medical bayonet connectors and drug infusion ports
    Patent number: 6453949
    Abstract: A plug and sealing system for medical bayonet connectors and drug infusion ports of the type having an interior self-sealing element. A male plug removably installed in the female collar portion of the connector, before or after penetration of the self-sealing element by a puncturing needle, has a shank portion the fits the inner surfaces of the collar portion side wall to provide a substantial sealing relation therebetween to prevent contamination of the interior surfaces of the collar portion from environmental contaminants. The plug has a bottom end that is resiliently engaged on an outer face of the self-sealing element, and a pair of lugs that are resiliently biased against a top wall of diametrically opposed apertures in the side wall of the collar portion to maintain the bottom end in a firm sealing relation with the self-sealing element to prevent leakage and spreading of aerosols and vapor.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: September 24, 2002
    Inventor: Sam Chau
  • Plug for medical bayonet connectors and drug infusion ports
    Patent number: D488867
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: April 20, 2004
    Inventor: Sam Chau