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
Nano-pigment inkjet ink composition that has a low odor and is environmentally-friendly
Network traffic demotion
Hybrid asynchronous transmission process
Switched capacitor amplifier
Heating pad
Potentiometric-sensor chip, potentiometric assay, and assay kit
Pull through coronary sinus pacing lead
  Randomly Featured Patents
Absorbent product with reinforcing member to resist deformation
Motor mount for use in model airplane
Multi-panel display screen with rotatable frames
Imaging system and projection apparatus having light beam modulation module
Short-circuit free battery receptacle
Fresnel lens sheet
Apparatus and method for efficient encoding of application definition using contiguous arrays
Tread of a tire
Therapeutic combinations comprising a selective estrogen receptor modulator and parathyroid hormone
Projection device inside a motor vehicle