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Hand dryer

  • US 7,555,209 B2
  • Filed: 10/04/2005
  • Issued: 06/30/2009
  • Est. Priority Date: 10/18/2004
  • Status: Active Grant
First Claim
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1. A hand dryer comprising:

  • a casing (1),a drying chamber (2) integrated in the casing for inserting hands,means for propelling air at room temperature at a high speed through an air circulation chamber towards the inside of the drying chamber,presence and proximity detectors (61) for the automatic actuation of the dryer when the user inserts his or her hands in the drying chamber (2),an electronic control card (6),means for collecting the water released from the user'"'"'s hands during drying,at least two air outlets arranged in opposite walls of the drying chamber (2), andtwo flat hollow air circulation chambers (3a, 3b) inside the casing which are parallel to the front and back walls of the drying chamber (2) and demarcated by respective pairs of mutually opposite front and back plates (31, 32);

    said hollow chambers (3a, 3b) comprising inner channels (33) for the conduction and distribution of air through the inside of said hollow chambers with a low coefficient of friction, minimizing the formation of whirlpools during its circulation through the inside of said hollow chambers, a mouth (36} for the inlet of high-speed air propelled by the air propulsion means (4a, 4b), and a plurality of air outlet orifices (34) defined in the front plates (31) of the hollow chambers which project air simultaneously on the entire surface of the user'"'"'s hands inserted and held still inside the drying chamber (2);

    said hollow chambers (3a, 3b) are arranged, respectively, between the front walls of the drying chamber and of the casing, and between the back walls of the drying chamber and of the casing.

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