Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Simplified apparatus for detection of leaks in pressurized pipelines










Image Number 10 for United States Patent #5415033.

An apparatus for detection of leaks in pressurized pipelines which utilizes a large pressure vessel and a small measurement vessel. The measurement vessel magnifies level changes during leak detection tests. The apparatus is connected to a pipeline through the measurement vessel. The entire system can be filled with liquid from the pipeline by opening a valve between the measurement and pressure vessels. Leak detection tests are conducted by measuring changes in volume with the measurement vessel over time while the pressure over the liquid in the pressure vessel and measurement vessel is maintained approximately constant. During tests, liquid communication between the measurement vessel and pressure vessel is prevented by closing the valve between them, but vapor communication between the vessels is permitted.








 
 
  Recently Added Patents
Wristband with detachable labels
Digital fine delay processing
Interference suppressing OFDM system for wireless communications
Elastic polypropylene-based film compositions
System and method for detecting an earth ground fault of an external power supply connected to a vehicle
Linerless labels
Method for driving bistable display device
  Randomly Featured Patents
Multi-mode driver with multiple transmitter types and method therefor
Rotor and screw elevator equipped with a fail-safe control system
Base of lamp stand
Duffle bag with wheels disposed in an end wall
Signaling flashing strobe light
Method and apparatus for expressing gray levels in a plasma display panel
Hydrogenation process
Method of producing a cast wheel
Audio
Fuel system apparatus and method