Resources Contact Us Home
Fluid lock

Image Number 4 for United States Patent #4828207.

This fluid lock permits transiting an object between different fluid pressure through a transiting hole in a wall separating a higher fluid pressure side from a lower fluid pressure side on opposite sides of the wall; has higher and lower fluid pressure doors, each hinged for pivotal movement between an open position for permitting transiting through the hole from one to the other pressure side and a closed position for sealing the opening; and has a transiting container formed between the doors in closed position, and closely form fitting the transiting object, for minimizing the loss of fluid between the sides during transiting the object through the hole.

  Recently Added Patents
Emergency call notification for network services
Quantitative sleep analysis system and method
Organic light emitting diode display device and method of fabricating the same
Method of preparing MgB.sub.2 superconducting wire and the MgB.sub.2 superconducting wire prepared thereby
Smart television system having methods or means for accessing paid or subscribed digital content from the internet
System and method for creating a build set and bill of materials from a master source model
High dynamic range pixel structure
  Randomly Featured Patents
Projection type display apparatus
Distress radiolocation method and system
Inserting objects using a text editor that supports scalable fonts
System and method for exact compensation of fundamental phasors
Knee support and angular adjustment apparatus
Piperazine derivatives
Tri-state encoding circuit for electronic musical instrument
Nasal administration of desmopressin
Delay units and methods of making the same
Soybean isopentenyl transferase genes and methods of use