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Method and apparatus for preventing waterdrops inside a sealed instrument

  • US 3,932,944 A
  • Filed: 09/12/1974
  • Issued: 01/20/1976
  • Est. Priority Date: 09/12/1974
  • Status: Expired due to Term
First Claim
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1. A method of preventing the formation of moisture in a watch having a detachable air-tight cover comprising the steps of placing the watch with its cover loosened in a sealed zone;

  • evacuating the air from said zone to cause a vacuum therein then feeding in dry air therein, whereby the dry air penetrates the watch and even when the zone is opened and the cover tightened, the dry air remains in the watch preventing the future foundation of moisture therein.

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