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
Electrical connector
Latch-up free ESD protection
Method and system for expanding axial coverage in iterative reconstruction in computer tomography (CT)
Flat panel crystal display employing simultaneous charging of main and subsidiary pixel electrodes
PC secure video path
Positive electrode for secondary battery, and secondary battery
Millimeter wave imaging method and system to detect concealed objects
  Randomly Featured Patents
Frequency synthesizer
Stereo stand
Method and apparatus for implementing a wireless universal serial bus host controller by interfacing a universal serial bus hub as a universal serial bus device
Turntable mechanism for a cutting tool
Wax filled pads
Mobile communication terminal allowed to communicate within detachable IC card and method of allowing it to access the network
Process for manufacturing a piezoelectric component
Isometric exercise ball
Knife and badge holder
Animal photo studio