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Liquid dispenser nozzle assembly

  • US 5,431,310 A
  • Filed: 05/17/1994
  • Issued: 07/11/1995
  • Est. Priority Date: 10/07/1988
  • Status: Expired due to Term
First Claim
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1. A liquid dispensing nozzle assembly for mounting on a liquid container and disperser having a flexible wall and liquid storage cavity for manually squeezed dispensing of liquid from the cavity through the nozzle assembly and for maintaining the liquid, such as contact lens saline solution, in sterile condition during storage and repeated dispensing of the liquid from the container cavity, said nozzle assembly comprising:

  • a discharge port;

    liquid conduit means for flow communication from the container cavity to said discharge port to enable dispensing of said liquid therethrough during said squeezed liquid dispensing;

    a base member supporting said nozzle assembly and securable to a liquid delivery portion of said container; and

    a seal element in sealing engagement against said base member for sealing said liquid conduit means against liquid leakage therefrom, wherein said seal element has a composition comprising polytetrafluoroethylene, wherein said seal element comprises a laminate incorporating a first layer of said polytetrafluoroethylene and a second, support layer therefor.

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