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Valve for an aerosol dispenser

  • US 5,037,012 A
  • Filed: 02/14/1990
  • Issued: 08/06/1991
  • Est. Priority Date: 07/28/1989
  • Status: Expired due to Fees
First Claim
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1. An aerosol metering valve for use with a pressurized container, the valve comprising:

  • a valve body having a metering chamber;

    a valve member having an outlet passage through which contents of the metering chamber can be dispensed;

    a transfer passage through which contents of the metering chamber can pass to the outlet passage when the valve member is in an operative or actuated position;

    a passageway formed in the valve member through which the contents of the container can pass from the container into the metering chamber when the valve is in an inoperative or rest position;

    a first valve seal disposed between the valve body and the container and through which the valve member is sealingly slidable in an axial direction to isolate the transfer passage from the metering chamber when the valve is in said operative or rest position;

    a valve retaining member sealingly mounted within the container and having a second valve seal through which the valve member is sealingly slidable in an axial direction and which isolates the passageway from the metering chamber;

    a ring member positioned co-axially with respect to the valve retaining member and having slots providing castellations on at least one face thereof; and

    a spring member acting to yieldingly retain the valve member in an inoperative position.

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