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DISPOSABLE URINAL STRAINER WITH SUPPORTING AND POSITIONING MEANS FOR HOLDING A SOLID CHEMICAL MATERIAL

  • US 3,760,429 A
  • Filed: 06/11/1971
  • Issued: 09/25/1973
  • Est. Priority Date: 06/11/1971
  • Status: Expired due to Term
First Claim
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1. A urinal deodorant chemical block support and positioning device in the form of a strainer comprising a large plate-like portion having a plurality of drainage openings distributed over its surface, said plate having an upper surface and a lower surface, an upstanding closed collar means substantially free of drainage holes integrally formed on said upper surface for receiving and supporting a deodorant chemical block, the interior of said collar having a closed floor, substantially free of drainage holes, said integral collar means projecting away from said upper surface, the collar and floor completing a closed supporting and positioning means for surrounding and protecting from erosion at least a portion of the base of said chemical block, and means also integrally formed on said upper surface intermediate the collar perimeter and projecting away from said upper surface at least as far as said collar projects away from said upper sUrface, the base of said deodorant chemical block having a peripheral contour which fits into said collar snugly enough to preclude erosion of the said block, and an opening in the base of said block which fits over said intermediate projection, whereby said block erodes from its outermost surface to approximately the level of said projecting means and then erodes centrally about said projecting means before eroding under said collar.

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