The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 1978
Filed:
Jun. 28, 1976
Stephen Ernohazy, Mt. Prospect, IL (US);
Larry Allen Songer, Schaumburg, IL (US);
Thomas Vernon DeRyke, Libertyville, IL (US);
Eugene Peter Oddo, Mt. Prospect, IL (US);
Addressograph-Multigraph Corporation, Los Angeles, CA (US);
Abstract
The present invention provides a device for eliminating the residue waste of aqueous ammonia solution, comprising a first portion of ammonia gas and a second portion of steam, of a developer system in an ammonia type diazo machine. The device provides for separating the first and second portions, recirculating the first portion to the developer system, condensing the second portion to form water and conveying the water via an inlet duct to an evaporator tank. A heater is provided for heating the evaporator tank to vaporize the water therein and an outlet duct is provided for expelling the water vaporized in the tank to an exhaust system of the machine. The heater is controlled by a first thermostat for maintaining the temperature in the evaporator tank within a working range to vaporize the water, and a second thermostat is provided for sensing a temperature below the working range indicating a heater failure and, in response thereto, initiating stoppage of residue waste flow from the developer system to prevent overflow of water in the evaporator tank.