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DISPOSABLE COMPARISON DETECTOR KIT

  • US 3,713,779 A
  • Filed: 12/07/1970
  • Issued: 01/30/1973
  • Est. Priority Date: 12/07/1970
  • Status: Expired due to Term
First Claim
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1. A detector kit for identification of the presence of chemicals in solution by visual color comparison comprising matching sheets of flexible and initially deformable material and at least one ampul containing a liquid chemical of predetermined volume, said ampul having opposite end chambers and a frangible section intermediate said end chambers, one of said sheets having therein a retention recess of shape and size accommodating said ampul, there being an area of said sheet adjacent said recess, means laterially spaced from said recess forming a mixing pocket in said area having a port thereto from the exterior for introduction of sample material to be tested, a first canal means respectively interconnecting one portion of said recess with said pocket, said pocket having a volume in excess of the volume of the contents of said ampul, a secondary pocket smaller than the mixing pocket, a second canal means interconnecting said mixing pocket and another portion of said secondary pocket, one of said canal means comprising a supply conduit to the pocket and the other of said canal means comprising a vent conduit therefrom, and a color comparison patch on one of said sheets adjacent said secondary pocket.

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