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Reclosable valve with separate internal seal means and seal removing means therefor

  • US 4,450,985 A
  • Filed: 11/18/1982
  • Issued: 05/29/1984
  • Est. Priority Date: 11/18/1982
  • Status: Expired due to Fees
First Claim
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1. In a fluid preassemblable valve structure of the type suitable for dispensing the contents of a pressurized container associatable therewith, said valve structure comprising:

  • a valve mounting cup peripherally sealingly securable to said pressurized container and having generally continuous wall projections extending generally internally into said container and defining an interior valve receiving chamber with a medial upper portion having a central aperture defined therein;

    an elongated tubular nozzle means having a dispensing orifice in one end thereof and having a second end extending through said central aperture;

    a resilient valve seat means positioned in said valve receiving chamber;

    a moveable valve means positioned in said valve receiving chamber and biasable against said valve seat means to close and seat said valve structure;

    said tubular nozzle means being moveable responsively to force applied to said one end so that said second end unseats said moveable valve means to open said valve structure;

    the improvement which comprises in combination;

    a sealing plate means positioned across said wall projections and closing said valve receiving chamber;

    a releasable bonding means adhering said sealing plate means to adjacent portions of said wall projections in gas tight relationship, and adapted to release said sealing plate means from said wall projections responsively to pressure applied against said sealing plate means from a location in said valve receiving chamber;

    said sealing plate means and said bonding means in combination with said wall projections being effective to isolate said contents from said tubular nozzle means, said valve seat means, and said moveable valve means,engaging means associated with said moveable valve means for abutting against said sealing plate means; and

    the interrelationship between said sealing plate means, said tubular nozzle means, said moveable valve means, and said releasable bonding means being such that an initial movement of said tubular nozzle means moves said moveable valve means with said associated engaging means against said sealing plate means to permit a release of said bonding means and a separation of said sealing plate means from said wall projections, thereby to permit operable association between said contents and said valve structure for dispensing said contents.

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