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Cork screw

  • US 4,677,883 A
  • Filed: 06/09/1986
  • Issued: 07/07/1987
  • Est. Priority Date: 06/09/1986
  • Status: Expired due to Fees
First Claim
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1. A cork screw comprising:

  • a rotary handle;

    a stem connected to said handle and having a helical groove extending on the periphery of said stem;

    a penetrating screw fixed to the bottom of said stem;

    a hollow pedestal provided around said stem and said penetrating screw, the wall of said pedestal having an upper portion sleeved slideably on said stem, first openings in said upper portion, a bottom portion adapted to be seated against a spout of a bottle, and an engaging means provided in a portion between said upper portion and said bottom portion;

    two dog members funcrumed at two opposite outer sides of said pedestal and each having a first engaging end capable of extending through one of said first openings to engage with said helical groove, and a second engaging end opposite to said first engaging end capable of engaging releaseably said engaging means so as to temporarily maintain said first engaging end in a released position from said helical groove; and

    springs members attached to the outer side of said pedestal and normally biassing said first engaging ends to engage with said helical groove of said stem.

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