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Hand sanitizing apparatus

  • US 5,765,242 A
  • Filed: 09/24/1996
  • Issued: 06/16/1998
  • Est. Priority Date: 11/30/1994
  • Status: Expired due to Fees
First Claim
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1. Hand sanitizing apparatus for use in combination with an existing wash basin sink, comprising:

  • mounting base means for mounting components of the apparatus adjacent a back wall of an existing wash basin sink and at a certain height above the sink;

    cover means fixed to said mounting base means, for enclosing components mounted on said mounting base means;

    spray head means mounted on said mounting base means for directing sprays of water and a hand soap toward a person'"'"'s hands when held at a sensed position beneath said mounting base means;

    water conduit means for diverting water supplied by an outside water supply for the existing sink, to the spray head means mounted on said mounting base means;

    cleaning agent dispensing means mounted on said mounting base means, including soap reservoir tank means for containing a supply of said hand soap, and means for directing said soap through the spray head means toward the sensed position beneath said mounting base means;

    dryer means mounted on said mounting base means, including means for heating air drawn inside said cover means, and means for propelling the heated air toward the person'"'"'s hands at the sensed position beneath said mounting base means; and

    control means for controlling operational cycles of the apparatus in response to certain input conditions, the control means includingmeans for detecting the presence of said hands at the sensed position beneath said mounting base means, andmeans for sequentially activating said cleaning agent dispensing means, said water conduit means, and said dryer means over corresponding operating cycles of preset durations while said hands remain at the sensed position beneath said mounting base means;

    wherein said spray head means comprises a spray head body having a first passage with an inlet arranged to receive rinse water originating from said water conduit means and an outlet arranged to direct the rinse water toward the sensed position beneath said mounting base means, and a second passage with an inlet arranged to receive a hand soap originating from the cleaning agent dispensing means and an outlet arranged to direct the hand soap toward said sensed position; and

    said spray head body has a control valve passage in communication with said second passage, and means in said control valve passage for preventing seepage of said hand cleanser from the outlet of the second passage in the absence of a preset delivery pressure of the hand cleanser.

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