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in opposition to a resilience force such that an indicator on the shaft portion proximate to the operator portion is withdrawn within the opening of the inner body when the vacuum is greater than a predetermined value and the indicator is visible above the inner body when the vacuum is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
System for controlled release of an active principle and method for preparation
Photographic printing paper and method of making same
Soybean sequences associated with the FAP3 locus
Agents for preventing and treating disorders involving modulation of the ryanodine receptors
Contact sensor, driver device, and care bed
Washing-up bowl
System, method and program recording medium for supply capacity estimation
  Randomly Featured Patents
Load shaping for dynamic tensioning mechanisms and methods
Process for the reduction of SO.sub.2 from wet lime/limestone tailgas in power plant desulfurization processes
Copper-zinc-manganese-nickel alloys
Method and device employing centrifugal force
Belt band-clamping arrangement for safety belts in motor vehicles
Playing track
Rerouting messages to parallel queue instances
Method of preparing polycrystalline cubic boron nitride
Automatic voltage control circuit by using reactive power
Filter arrangements