Patents by Inventor Chong W. Chua

Chong W. Chua 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: 5336054
    Abstract: A pumping arrangement for pumping water to ships comprises a pump having an inlet and an outlet, a level sensor, connectable to the outlet, for insertion into a water tank, and a control arrangement associated with the level sensor. The control arrangement de-activates the pump in response to a signal from the level sensor so as to avoid over-filling of the tank. The pumping arrangement further comprises transmitting means to transmit a signal at the same time as the control arrangement de-activates the pump. Such a signal is transmitted to, for example, a paging unit. Several pumping arrangements may be used at once with several ships, the paging unit being adapted to inform the operator when a given pumping arrangement has filled a water tank.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: August 9, 1994
    Assignee: Port of Singapore Authority
    Inventors: Khen H. Seah, Yeow S. Heng, Chong W. Chua