Vacuum sealing cap

  • US 8,186,527 B2
  • Filed: 05/04/2009
  • Issued: 05/29/2012
  • Est. Priority Date: 10/07/2008
  • Status: Expired
First Claim
Patent Images

1. A vacuum sealing cap for a container, comprising:

  • an outer cap body adapted to cover removably a mouth of the container and having a top wall;

    an inner cap body disposed below and movable towardor away from said outer cap body;

    a sealing gasket that is disposed around an outer periphery of said inner cap body and that is compressible by said outer cap body to abut sealingly against the mouth of the container when said inner cap body moves toward said outer cap body;

    a slide member movably extending through said outer cap body and connected to said inner cap body; and

    an operating member connected pivotally to said slide member above said top wall of said outer cap body, and being pivotable between a first position, where said operating member pulls upwardly said slide member to move said inner cap body upwardly toward said outer cap body so that said sealing gasket is pressed sealingly against the mouth of the container, and a second position, where said operating member pushes downwardly said slide member to move said inner cap body away from said outer cap body so that said sealing gasket is not pressed sealingly against the mouth of the containerwherein said operating member has a transverse bottom end face and two opposite longitudinal side faces, said bottom end face being spaced apart from a pivot point of said operating member at a distance smaller than a distance from said pivot point to either one of said side faces, said bottom end face facing said top wall of said outer cap body when said operating member is in said second position, one of said side faces abutting against said top wall of said outer cap body when said operating member is in said first position; and

    wherein said inner cap body has a base wall opposite to said top wall of said outer cap body and connected to said slide member, and a lower limiting member extending upwardly and annularly from said base wall and indented inwardly immediately above said base wall to define an annular groove above said base wall, said sealing gasket having an inner section received in said annular groove, and an outer section extending upwardly and inclinedly from said inner section and compressible by said outer cap body to move downwardly and outwardly when said inner cap body moves toward said outer cap body.

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