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Valve for aerosol container

  • US 7,387,121 B2
  • Filed: 07/02/2001
  • Issued: 06/17/2008
  • Est. Priority Date: 07/01/2000
  • Status: Expired due to Fees
First Claim
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1. A propellant-operable metering valve for an aerosol container, said metering valve being adapted to dispense a formulation comprising a substance in a fluid propellant contained therein, said metering valve comprising:

  • a valve body; and

    a valve member, said valve member being moveable within said valve body; and

    a latch for latching the valve member against movement;

    wherein said valve member includes a first reaction surface and a second reaction surface, and wherein said valve member is, upon release of said latch, movable by pressure exerted by the propellant on said first reaction surface to drive said valve member from a first position to a second position within said valve body, and said valve member is also movable by pressure exerted by the propellant on said second reaction surface to return said valve member to said first position.

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