Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Device and method for producing a fluidic connection between cavities
Method of fabricating semiconductor light emitting device
(4936
Purine compounds used as CB2 agonists
Method and arrangement for controlling semiconductor component
Capacitance sensing
Device to control force required to depress accelerator pedal
  Randomly Featured Patents
Method and apparatus for measuring contact resistance for spot welding simulations
Apparatus for stabilization of high speed optical pulses
Automated and accelerated warm-up and stability check for laser trackers
Methods of forming integrated circuit memory devices using masking layers to inhibit overetching of impurity regions and conductive lines
Image forming apparatus and control method for the same
3-phase Faraday optical current sensor assembly
Display device and display system
Sliding member for use with lightweight metal
Learning control method for fuel injection control system of engine
Method and apparatus for reporting the status of asynchronous data transfer