Browse Prior Art Database

Fail Safe Flow Switch Monitor

IP.com Disclosure Number: IPCOM000089185D
Original Publication Date: 1977-Sep-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 30K

Publishing Venue

IBM

Related People

Angiello, J: AUTHOR [+2]

Abstract

Liquid flow switches may fail because of corrosive properties and dirt in the liquid being monitored.

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Fail Safe Flow Switch Monitor

Liquid flow switches may fail because of corrosive properties and dirt in the liquid being monitored.

A solution to the failure problem is to use an aspirator-jet, as shown in the drawing, which is immune to corrosion and dirt, and then both to sense the vacuum caused by the aspirator-jet with a vacuum sensor switch and to monitor the flow with a vacuum gauge. Since the vacuum is proportional to the amount of liquid flow, a calibrated leak can be installed and a wide range of flow rates can be monitored or switched. Laboratory or industrial equipment, which uses water cooling or any other type of flow, e.g., gas flow, can be protected and or monitored by this flow switch-monitor.

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