US 4,333,752 A · Adsorbent cartridge for the exhaust of diazo process machines

Abstract

A disposable cartridge filled with a chemical composition that acts as an adsorbent for ammonia vapor is adapted to be used in connection with a diazo process printing machine having a vacuum exhausted chamber. Exhaust from the chamber is passed through the cartridge to remove the noxious ammonia vapors and then is vented into the atmosphere. The cartridge is housed in an elongated rectangular cardboard box having three end flaps formed at each of its opposed open ends. Two opposed flaps of each set are formed with central holes and a plastic screen section adhered between these flaps to retain and allow access to the center section of the box which contains the adsorbent chemical. The center end flaps have knock-outs or tear strips that allow holes to be formed in their centers. These center end flaps cover the screens during shipment and when the cartridge is ready for use the center sections of these end flaps are knocked-out to allow the machine exhaust to be vented into and out of the cartridge.

Claims10

Dependent claims

A disposable cartridge for processing ammonia-laden exhaust gasses from a diazo process printing machine, comprising:

an elongated tubular container, rectangular in cross section having its opposed ends closed off by first end flaps integrally secured to one side wall of the container;
second end flaps at each end of the container formed by extensions of side walls thereof adjacent to the one side wall to which the first end flaps are secured, said second end flaps having central apertures therein;
means formed in each first end flap to allow the manual removal of a central section in the first end flaps;
screens secured to each of said second end flaps so as to cover the apertures therein;
and
an ammonia adsorbent material disposed within the container, between the screens, whereby the first end flaps close off the container ends prior to use of the cartridge and the central sections of each first end flap may be manually removed when the cartridge is to be placed into use so that the exhaust from the diazo printer may be passed into the cartridge through one end screen to contact the adsorbent, and out of the cartridge through the other end screen.

3 more elements

Dependencies are inferred from the claim text.

Adsorbent cartridge for the exhaust of diazo process machines

Life of this patent

Adsorbent cartridge for the exhaust of diazo process machines

Life of this patent

Abstract

Claims10