Resources Contact Us Home
Bottle stopper with pressure indicator

Image Number 6 for United States Patent #6651834.

A stopper for a bottle includes a resilient outer body having an axial bore, a rigid inner body disposed within the bore, and a valve actuator moveably disposed within an axial opening of the inner body. A lower flange portion of the outer body extends radially across the bore to an axial aperture having a sealing surface. The valve actuator has an upper operator portion connected to a lower valve body portion by a longitudinally extending shaft portion. The valve body portion is sealingly engageable with the sealing surface of the orifice to close the orifice. A vacuum in the bottle acts on a bottom biasing surface of the lower flange portion to bias the lower flange portion and the valve actuator downward into the bottle neck in opposition to a resilience force such that an indicator on the shaft portion proximate to the operator portion is withdrawn within the opening of the inner body when the vacuum is greater than a predetermined value and the indicator is visible above the inner body when the vacuum is less than the predetermined value.

  Recently Added Patents
Integrated circuit packaging system with coupling features and method of manufacture thereof
Method for producing SOI substrate and SOI substrate
Switching module and switching synchronization system
Sampling switch circuit that uses correlated level shifting
System for determining movement properties of a guided vehicle
System and method for agitation of multiple specimen containers
Light emitting diode having multi-cell structure and method of manufacturing the same
  Randomly Featured Patents
Method and apparatus for securely conveying network control data across a cryptographic boundary
Inflatable restraint system for side impact crash protection
Process of rapid variety-independent plant transformation
Method and system for producing images of an object
Optical feedback locking of semiconductor lasers
Dielectric cure for reducing oxygen vacancies
Fabric coating
Classification of data for insertion into a database
Methods and apparatus for initiating and resynchronizing multi-cycle SIMD instructions
Optical disk apparatus and optical disk recording method