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
Method and system for a low-power client in a wide area network
Alkaline battery
Device to facilitate moving an electrical cable of an electric vehicle charging station and method of providing the same
Optical analysis device, optical analysis method and computer program for optical analysis
Probe for ultrasound diagnostic apparatus
Method for detecting directions of regularity in a two-dimensional image
Requirements model comparative analysis method for effort estimation in customizing a network monitoring and control system
  Randomly Featured Patents
Differential supporting of drum heads
Convertible portable electric tool
Cyclic amine derivatives, pharmaceutical compositions containing these compounds and methods for preparing them
Method for making diaryl carbonate
Illumination light source and image display apparatus
Connector to be fixed to a device and method of fixing a connector to a device
Thermally neutral portable power sources
Syringe holder
Reduced subset scan and dual frequency wakeup for bluetooth inquiry operation
Machine for the crimping of yarns, in particular for producing false, wavy hairs for wigs