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
Semiconductor device and manufacturing method thereof
Electric washing machine
Probe for ultrasound diagnostic apparatus
Position-measuring device
Composition comprising a mixture of dextro- and levo-amphetamines complexed with ion-exchange resin particles to form drug resin particles
Small molecule inhibitors of kynurenine-3-monooxygenase
Multiple input multiple output transceiver
  Randomly Featured Patents
Differential treatment to selectively avoid silicide formation on ESD I/O transistors in a salicide process
Sealing device for oil rotary vacuum pump
Standoff for desiccant in condenser reservoir of automotive air conditioning system
Radial-radial single rotor turbine
Divergent load bar
Device for fixing conduits to saddles
Authentication of integrated circuits
Microstructured optical fibre
Semiconductor surface treatment for epitaxial growth
Combustion control apparatus