Patents Assigned to Barnstead Thermolyne
  • Water purifier
    Patent number: 5399263
    Abstract: A water purifier for supplying high purity water with a low total organic carbon content. The purifier includes removable cartridges that contain a series of organic and ion exchange purification media. Special couplings are used to permit the cartridges to be easily and quickly connected to and removed from the water purifier. In addition, the cartridges contain a check valve to minimize water drainage from the cartridge when the cartridge is removed. Selected water purifier components are constructed of fluorinated polyethylene.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: March 21, 1995
    Assignee: Barnstead Thermolyne
    Inventors: Chester E. Chomka, James R. Edwards, Charles T. Nachtman
  • Water purifier cartridge coupling
    Patent number: 5397468
    Abstract: A water purifier for supplying high purity water with a low total organic carbon content. The purifier includes removable cartridges that contain a series of organic and ion exchange purification media. Special couplings are used to permit the cartridges to be easily and quickly connected to and removed from the water purifier. In addition, the cartridges contain a check valve to minimize water drainage from the cartridge when the cartridge is removed. Selected water purifier components are constructed of fluorinated polyethylene.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: March 14, 1995
    Assignee: Barnstead Thermolyne
    Inventors: Chester E. Chomka, James R. Edwards, Charles T. Nachtman