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Method for Introducing Volatile Liquids into the Housings of Electrical Components and for Closing the Housings

  • US 20070074489A1
  • Filed: 11/03/2006
  • Published: 04/05/2007
  • Est. Priority Date: 03/08/2002
  • Status: Abandoned Application
First Claim
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1. A method for introducing volatile liquids into filling openings of housings of electrical components and for closing the housings, the method which comprises:

  • a) conveying the components into an evacuatable chamber;

    b) generating an inert-gas atmosphere having a first pressure in the chamber such that the first pressure is higher than a vapor pressure of the liquid and below atmospheric pressure, the first pressure being a variable parameter;

    c) in a storage vessel, bringing the liquid to a second pressure that differs from the first pressure;

    d) using at least one delivery device to introduce a quantity of the liquid, which is associated with a free volume of a housing and which is a variable parameter, through at least one of the filling openings of the housings;

    e) increasing pressure in the chamber to a third pressure being higher than the first pressure, the third pressure being a variable parameter;

    f) repeating steps d) and e) until a predetermined quantity of the liquid has been introduced into each one of the housings; and

    g) closing the filling openings in the housings and sealing the filling openings in an inert-gas atmosphere having a fourth pressure.

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