Resources Contact Us Home
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
Solid state lighting devices with cellular arrays and associated methods of manufacturing
Sample chamber for laser ablation inductively coupled plasma mass spectroscopy
Portable, single member housing cord protector
Wine bottle
Defect detection system and method
Printing system, information processing apparatus, print job processing method, information processing method, program, and storage medium
Hair care composition
  Randomly Featured Patents
Silicon single crystal wafer and a method for producing it
Calculator lid mechanism
Local-global alignment for finding 3D similarities in protein structures
Capacitively coupled keypad structure
Method and system for server support for pluggable authorization systems
Compact bearing and stiffened journal
Piperidine and pyrrolidine derivatives comprising a nitric oxide donor for treating stress
System and method for performing external procedure calls from a client program to a server program to a server program and back to the client program while both are running in a heterogenous
Insulated ice compartment for bottom mount refrigerator
Rotary one cycle internal combustion engine