Patents Assigned to Universal Water Systems, Inc.
  • Patent number: 4212743
    Abstract: A filter cartridge for use in filters, for example, water filters, includes an inlet for water to be purified and an outlet for filtered water. Partitions within the cartridge define an elongated, tortuous water flow path between the inlet and outlet. Filter pads and activated carbon, or another suitable absorbent material, is disposed in the flow path. The cartridge of the present invention provides effective odor and taste filtering of the water because the water passes over a large area of filter surface as it travels from the inlet to the outlet.
    Type: Grant
    Filed: January 11, 1979
    Date of Patent: July 15, 1980
    Assignee: Universal Water Systems, Inc.
    Inventors: Arch Van Meter, William J. Gartner
  • Patent number: 4120711
    Abstract: A process for sealing molded end caps to filter tubes comprises providing a holder for an end cap and a means for automatically dispensing a predetermined quantity of a hot, molten adhesive into the end cap. After the adhesive is added to the end cap, a filter cartridge is inserted into the end cap under slight pressure to embed the ends of the filter in the adhesive. Subsequent cooling of the adhesive results in an effective seal.
    Type: Grant
    Filed: September 30, 1977
    Date of Patent: October 17, 1978
    Assignee: Universal Water Systems, Inc.
    Inventor: William J. Gudeman