Patents Represented by Attorney Arnold B. Eckert Seamans Cherin & Mellot, LLC Silverman

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  • Filter cartridges having track etched membranes and methods of making same
    Patent number: 6103119
    Abstract: A filter cartridge that includes a track etched membrane sealed therein in a leak-free manner, and a method for making the cartridge. The filter cartridge has a bubble point that is at least 50% of the bubble point of the track etched membrane. In one embodiment, the method includes disposing the track etched membrane below a heat source and orienting the membrane so that it melts back on itself, and then allowing the membrane to cool to form a leak-free seal.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: August 15, 2000
    Assignee: Whatman Inc.
    Inventors: James G. Clements, William Stephen Macomber, Suzanne Surprenant