Browse Prior Art Database

Evaporation Recovery System

IP.com Disclosure Number: IPCOM000049872D
Original Publication Date: 1982-Aug-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

Driscoll, PR: AUTHOR [+2]

Abstract

This arrangement does not prevent the evaporation process from occurring but, more accurately, captures the evaporated moisture which is laden with contaminants and returns it back to the point of usage. This not only maintains the liquid (such as ink) at the same consistency, but also prevents harmful elements from being dispensed into the air to endanger breathing, skin or eyes.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 81% of the total text.

Page 1 of 2

Evaporation Recovery System

This arrangement does not prevent the evaporation process from occurring but, more accurately, captures the evaporated moisture which is laden with contaminants and returns it back to the point of usage. This not only maintains the liquid (such as ink) at the same consistency, but also prevents harmful elements from being dispensed into the air to endanger breathing, skin or eyes.

While this arrangement is particularly adopted to recover evaporation in an ink jet printing system, the principles can be applied in any vacuum fluid collection system.

The drawing shows an ink jet printer where a pressure pump 1 provides a continuous ink stream flow 3, from a nozzle 4. All ink not required for printing goes into collector 6, which is connected to a reservoir 9 where a negative pressure is maintained by a vacuum pump 8, to facilitate return of the ink for re- use. Since the collector 6 is open to the atmosphere, air also flows through the collector 6, resulting in an air/ink mixture.

Ordinarily appreciable proportions of the water/moisture become suspended in the air, along with ink particulates in this case, which are expelled with the vacuum pump exhaust 10 to condense the remaining liquid and also contaminate the air, resulting in a loss of liquid in the system, a change in consistency of the remaining liquid, and contamination of the air.

By routing the vacuum pump exhaust through a cooling coil 5 and on through a moisture/water trap 11,...