Matches 251 - 264 out of 264 < 1 2 3 4 5 6


Match Document Document Title
4502842 Multiple compressor controller and method  
The multiple compressor controller and method accomplishes the control of a plurality of variable sized compressors in a multiple compressor distribution system to maintain system pressure at a...
4456038 Apparatus for pressurizing tires to a desired level  
Apparatus for rapidly achieving a desired pressure level in a tire by gas flow through a port in the tire such as the valve stem including a conduit having one end for connection to a source of...
4446370 Apparatus for detecting oil in water  
Apparatus for detecting oil in water. A plurality of oil sensors are maintained at selected positions in a body of water. Each sensor includes a limited wavelength light source for inducing...
4306446 Apparatus for estimating locality of leaking spot in pipeline  
An apparatus for estimating the locality of a leaking spot in a pipeline which conveys a fluid, the apparatus comprising: a pair of detectors located on the pipeline at positions spaced from each...
4295197 Infiltration-inflow sewer line analyzer  
A method and means of determining inflow (undesired pipe drains to a sewer) and infiltration (sewer pipe leakage) into sewer lines by a coordinate measurement of pressure in sewer pipes at several...
4289019 Method and means of passive detection of leaks in buried pipes  
A method and means for passive detection of a leak in a buried pipe containing fluid under pressure includes a plurality of acoustic detectors that are placed in contact with the pipe. Noise...
4118780 Technique for monitoring flow rate differences in water cooling conduit  
A technique for monitoring the frequency difference between pulse output signals derived from a pair of flowmeters interposed respectively in the inlet and outlet lines of a flow conduit supplying...
4112494 Refinery and pipeline monitoring system  
A system is disclosed which indicates a series of intermittent losses of fluid between any two stations along a fluid flow system such as a refinery or pipeline. The series of intermittent losses...
3987662 Fluid leakage detection apparatus  
An apparatus detects a leakage position between the upstream and downstream points of a fluid passage, where the fluid leaks. The flow rate of the fluid is detected both at the upstream and...
3952759 Liquid line break control system and method  
System and method for automatically closing flow control valves and/or actuating an alarm in the event of a leak or break in a liquid pipeline. The occurrence of a leak or break is determined...
3739636 LINEAR READOUT FLOWMETER  
A flow meter for determing the rate of flow of fluid through a conduit and indicating the flow rate on a linear scale. A signal having a magnitude inversely proportional to the time elapsed for a...
3711689 PIPELINE MONITORING SYSTEM  
There is disclosed herein an electronic monitoring system for pipelines and the like utilizing counting techniques for determining the difference between fluid volume supplied into a pipeline and...
3505513 PIPELINE LEAK DETECTION  
3478576 ACOUSTIC LEAK DETECTING APPARATUS AND METHOD  

Matches 251 - 264 out of 264 < 1 2 3 4 5 6