Patents in subclass Pumps/Alternating Sequences

Parent class: Pumps

Number Patent title Issue Date
06419454 Air compressor control sequencer

A controller for managing a plurality of compressors in an efficient manner such that the system uses less energy, has lower maintenance cost and experiences less wear. For a system with multiple compressors the controller has the minimum...
07/16/2002
06186743 Multiple pump sequencing controller

A sequential controller is provided for sequencing multiple electric loads such electric pumps. That is, for each cycle the next load is designated as the lead load in a round-robin fashion. The controller uses cost effective...
02/13/2001
6142740 Compression system having means for sequencing operation of compressors

A compression system includes a sequencing switch movable between a first switch position and a second switch position for alternating a first compressor and a second compressor between a lead mode and a lag mode so that one of the...
11/07/2000
5811669 Cycling compressor performance metering

A computational sequence that allows a stand-alone instrument or a central data processing unit to calculate flow of compressed ideal gases based on measurements of pressure and time only, in systems where compressors start and stop at...
09/22/1998