Patents by Inventor Peter H. M. Chang

Peter H. M. Chang 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: 7097072
    Abstract: A drinking-fluid dispenser includes an uprightly oriented bottle having an open end and a close end. Mounted inside the bottle adjacent the open end is a valve connected to a float by an actuating arm. There is also a pressure-vent unit insertably disposed near the open end of the bottle for maintaining atmospheric pressure above the fluid inside the bottle. During normal use, fluid extracted out of the bottle is replendished by an external fluid source which is in fluid communication with the bottle through the valve. The valve in turn is controlled by the float which buoyantly floats on the fluid, closes and opens the valve, respectively, when the fluid rises and falls inside the bottle.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: August 29, 2006
    Assignee: Access Global, Inc.
    Inventors: Ah Beng Tan, Peter H. M. Chang
  • Patent number: 6793102
    Abstract: A drinking-fluid dispenser includes a bottle disposed on a dispenser base. Mounted inside the bottle is a valve proximally connected to a float by an actuating arm. The valve is positioned above the fluid inside the bottle and is connected to a continuous-flow fluid source. During normal use, the float which buoyantly floats on fluid, closes and opens the valve, respectively, when the fluid rises and falls inside the bottle. There is also a pressure-vent unit having an orifice and is disposed through the bottle above the bottle fluid to maintain atmospheric pressure inside the bottle.
    Type: Grant
    Filed: April 26, 2003
    Date of Patent: September 21, 2004
    Assignee: Access Global, Inc.
    Inventors: Ah Beng Tan, Peter H. M. Chang
  • Publication number: 20030183649
    Abstract: A drinking-fluid dispenser includes a bottle disposed on a dispenser base. Mounted inside the bottle is a valve proximally connected to a float by an actuating arm. The valve is positioned above the fluid inside the bottle and is connected to a continuous-flow fluid source. During normal use, the float which buoyantly floats on fluid, closes and opens the valve, respectively, when the fluid rises and falls inside the bottle. There is also a pressure-vent unit having an orifice and is disposed through the bottle above the bottle fluid to maintain atmospheric pressure inside the bottle.
    Type: Application
    Filed: April 26, 2003
    Publication date: October 2, 2003
    Applicant: Access Global, Inc.
    Inventors: Ah Beng Tan, Peter H. M. Chang
  • Patent number: 6588630
    Abstract: A drinking fluid dispenser includes a bottle disposed on a dispenser base. Mounted inside the bottle is a valve proximally connected to a float by an actuating arm. The valve is positioned above the fluid inside the bottle and is connected to a continuous-flow fluid source. During normal operation, the float which buoyantly floats on fluid, closes and opens the valve, respectively, when the fluid rises and falls inside the bottle. There is also a pressure vent with an orifice disposed through the bottle and above the bottle fluid to maintain atmospheric pressure inside the bottle.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: July 8, 2003
    Assignee: Access Global, Inc.
    Inventors: An Beng Tan, Peter H. M. Chang
  • Publication number: 20020170921
    Abstract: A drinking fluid dispenser includes a bottle disposed on a dispenser base. Mounted inside the bottle is a valve proximally connected to a float by an actuating arm. The valve is positioned above the fluid inside the bottle and is connected to a continuous-flow fluid source. During normal operation, the float which buoyantly floats on fluid, closes and opens the valve, respectively, when the fluid rises and falls inside the bottle. There is also a pressure vent with an orifice disposed through the bottle and above the bottle fluid to maintain atmospheric pressure inside the bottle.
    Type: Application
    Filed: May 21, 2001
    Publication date: November 21, 2002
    Applicant: Access Global, Inc.
    Inventors: An Beng Tan, Peter H. M. Chang