Patents Assigned to Her Majesty the Queen in right of Canada as represented by the Minister of National Defence of Canadian Government
  • Plastic scrim
    Patent number: 5038775
    Abstract: The invention disclosed is an improved scrim means for use in a breathing gas filter assembly which includes a pleated web filter medium. The improved scrim means is of a non-woven microorganism resistant synthetic polymeric material of sufficient rigidity to provide substantially continuous support to maintain the pleats of the filter medium in substantially uniformly spaced relationship, to expedite fluid flow in the plane of the web and to minimize nesting of the filter medium.
    Type: Grant
    Filed: January 4, 1988
    Date of Patent: August 13, 1991
    Assignee: Her Majesty the Queen in right of Canada as represented by the Minister of National Defence of Canadian Government
    Inventors: John Maruscak, Pierre Legare, Thomas C. Welch, Jr.