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
Methods of prognosing a rheumatoid arthritis remission phenotype
Drive and startup for a switched capacitor divider
Integrated circuit packaging system with laser hole and method of manufacture thereof
Light-emitting device, film-forming method and manufacturing apparatus thereof, and cleaning method of the manufacturing apparatus
Feature management of a communication device
Methods and systems for motion estimation with nonlinear motion-field smoothing
System and method for enhancing buyer and seller interaction during a group-buying sale
  Randomly Featured Patents
Method for the erasure of a static RAM and corresponding integrated circuit memory
Auto winding mechanism for window blind
Microprocessor capture detection circuit and method
Oxazolyl-substituted thiadiazolidinediones
Low base resistance bipolar junction transistor array
Optical information recording medium, reproducing method thereof, and manufacturing method thereof
Hydrojet drilling means
Projection exposure method and apparatus that produces an intensity distribution on a plane substantially conjugate to a projection optical system pupil plane
Reset circuit
Oxidation catalysts for engines producing low temperature exhaust streams