Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Apparatus for checking the set pressure of a safety valve










Image Number 2 for United States Patent #4527415.

The apparatus for checking the set pressure of a safety valve (300) comprises: a first tank (100) filled with a first fluid (110) at a pressure less than the set pressure, and connected to the fluid inlet tubing (310) of the valve; a second tank (200) filled with a second fluid (210) at a pressure greater than the set pressure; means (410) for rapidly putting the two tanks into communication with each other; and means (500, 510, 520) for simultaneously measuring the pressure in the fluid inlet tubing and the displacement of the valve plate.








 
 
  Recently Added Patents
Hair care composition
Imaging apparatus having selection unit to select focus detection areas
Image processing device, image processing method, and program
Large carrying case
Methods and systems for automated backups and recovery on multi-os platforms using controller-based snapshots
Electrode composition with enhanced performance characteristics
Enhanced claims damage estimation using aggregate display
  Randomly Featured Patents
Lamp control system
Reference ladder having improved feedback stability
Graphic and information display module face plate for hall mounted location and elevator cars
Organic electroluminescent device with supplemental cathode bus conductor
Elastic molding die
Massive security barriers having tie-bars in tunnels
Easily installable field configurable air conditioning unit
Field crop sprayer
Product-dispensing method and apparatus
Method and apparatus for filtering out signal components from output signals of a differential dosing scale using a fuzzy logic filter