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Valve for spraying a mist

  • US 4,415,121 A
  • Filed: 06/12/1981
  • Issued: 11/15/1983
  • Est. Priority Date: 06/12/1981
  • Status: Expired due to Fees
First Claim
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1. A mist valve comprising wall means forming an axially elongated passageway having an inlet end arranged to receive the material to be sprayed as a mist and an outlet end from which the mist is sprayed, at least a portion of said wall means is flattened from the outlet end toward the inlet end, said wall means having an at-rest condition and a mist spraying condition and comprising a generally flat first wall and a generally flat second wall located opposite said first wall with said first and second walls disposed in contact in the at-rest condition of said wall means from said outlet end for at least a part of the length of said passageway toward said inlet end, at least one of said first and second walls having capillary-like channels therein extending in the elongated direction of and open to said passageway with said channels extending from approximately said outlet end for a part of the length of said passageway disposed in contact in the at-rest condition of said wall means, at least a part of said wall means between said inlet end and said channels is flexible and vibrates when said passageway is in the mist spraying condition and material to be sprayed is forced therethrough, and the facing surfaces of said first and second walls are in sealing contact for a portion of the length of said passageway between the ends of said channels closer to said inlet end and said inlet of said wall means and form a seal closure preventing the flow of material through said passageway while said wall means is in the at-rest condition.

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