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in opposition to a resilience force such that an indicator on the shaft portion proximate to the operator portion is withdrawn within the opening of the inner body when the vacuum is greater than a predetermined value and the indicator is visible above the inner body when the vacuum is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
Fuser member having composite outer layer
Method and system for testing indirect bandgap semiconductor devices using luminescence imaging
Method for spore detection
Method for mapping resource units
PCSK9 antagonists
Multistable electromagnetic actuators
Method for cutting C--Mn steel with a fiber laser
  Randomly Featured Patents
Negative developing agent and image forming apparatus using the same
Lighted hat
Support-integrated donor wafers for repeated thin donor layer separation
System and method of controlling registration on a multi-technology handset
Method of making photoconductive film and electrophotographic photosensitive member
Apparatus and method for reconstructing a ligament
Return address stack recovery in a speculative execution computing apparatus
Bipolar transistor RF power amplifier
Synthetic methods and intermediates for stereoisomeric compounds useful for the treatment of gastrointestinal and central nervous system disorders
High-temperature potentiometric oxygen sensor with internal reference