Resources Contact Us Home
Fermentation lock for wine barrel

Image Number 2 for United States Patent #6478178.

An improved stopper apparatus for use with wine barrel bung holes includes a generally frusto-conical stopper member having a central aperture, a top surface, a bottom surface, and an outer circumferential surface adapted to seal against the inner circumferential surface of the bung hole. The apparatus further includes a sealing insert member having a top portion, a middle portion, and a bottom portion, the top portion having a diameter slightly greater than the stopper member central aperture such that the sealing insert member can be pushed into the central aperture so as to bring the top surface of the sealing insert member with the top surface and the stopper member during barrel aging. The sealing insert member further has a lower surface adapted for sealing engagement against the stopper member top surface during barrel fermentation. The bottom portion includes at least one flexible lateral projection element adapted to contact and apply a force against the stopper member bottom surface, so as to urge the top portion lower surface into sealing engagement with the stopper member top surface.

  Recently Added Patents
Image forming apparatus
Cell proliferation inhibitor
Toner cartridge and image forming apparatus including the same
Nacelle cover
High-voltage AC light-emitting diode structure
Optical fixing device and image forming apparatus
Method for controlled layer transfer
  Randomly Featured Patents
Method and apparatus for multi-level scan compression
Rim-locker for spectacle frame
Modular test instrument
Modified persistent auto precharge command protocol system and method for memory devices
Process for preparing 5-dithio-modified oligonucleotides
Injection stretching and blow molding process including a secondary treatment operation
Absorbable tissue expander
Method for manufacturing semiconductor device having a wiring structure
System and method for random mixed palletizing of products