Vacuum valve with vacuum gauge function

Vacuum valve with vacuum gauge function

CN
  • CN 1,201,980 C
  • Filed: 12/30/2002
  • Issued: 05/18/2005
  • Est. Priority Date: 12/28/2001
  • Status: Active Grant
First Claim
Patent Images

1. vacuum valve with vacuum gauge function, it is the vacuum valve that container cover press type vacuum is preserved container, comprising:

  • container cover, it opens and closes the input peristome of vessel;

    The vacuum holding member, it is arranged on the described container cover, can makes described vessel in-to-in air outflow and keep described vessel in-to-in vacuum by pushing described container cover, it is characterized in that,Described empty holding member has sealing flange portion, and it is housed in the container cover parts, an end can with lug boss open surfaces sealing contact,Described vacuum holding member at least a portion forms from described container cover outstanding to the outside,The projecting degree of described vacuum holding member protrusion correspondingly changes with described vessel in-to-in vacuum state, can discern described vessel in-to-in vacuum state from the outside of described container cover.

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