Patents by Inventor William C. Whitehill

William C. Whitehill 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).

  • Method and apparatus for preparing pure water
    Patent number: 6796436
    Abstract: Water treatment systems or assemblies are normally tested after construction, at least for leaks, prior to shipping or storage. Pressure testing with a gas is hazardous, so testing with water is a standard method. After testing, the water is displaced from the system by draining or gas phase flushing. It is nearly impossible to remove all of the water from the system or assembly. This remaining water provides an environment for biological growth which contaminates the system or assembly over time. The purpose of this invention is to eliminate or minimize this biological contamination by adding a biocidal agent to the system or assembly before sealing it for shipment or storage.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: September 28, 2004
    Assignee: Ionics, Incorporated
    Inventors: William W. Carson, Keith J. Sims, Bernard Mack, Robert J. Ritz, William C. Whitehill
  • Method and apparatus for preparing pure water
    Publication number: 20030019818
    Abstract: Water treatment systems or assemblies are normally tested after construction, at least for leaks, prior to shipping or storage. Pressure testing with a gas is hazardous, so testing with water is a standard method. After testing, the water is displaced from the system by draining or gas phase flushing. It is nearly impossible to remove all of the water from the system or assembly. This remaining water provides an environment for biological growth which contaminates the system or assembly over time. The purpose of this invention is to eliminate or minimize this biological contamination by adding a biocidal agent to the system or assembly before sealing it for shipment or storage.
    Type: Application
    Filed: July 24, 2002
    Publication date: January 30, 2003
    Applicant: Ionics, Incorporated
    Inventors: William W. Carson, Keith J. Sims, Bernard R. Mack, Robert J. Ritz, William C. Whitehill