Patent · US Expired

Device for degassing diazotype materials by convection heating

US4582423A · kind A · utility

3Cited by

4References

9Claims

0Family size

Assignee

Blu-Ray Incorporated · US

Inventors

Robert A. Putnam · Elverson, US
Robert D. Harris · Marietta, US
George W. Norton · Silver Spring, US

Key dates

Filing date	Sep 17, 1984
Grant date	Apr 15, 1986
Priority date	—
Expiry date	Sep 17, 2004

Classification

Technology area (CPC G)Physics
CPC primaryG03D7/00
WIPO fieldOptics
WIPO sectorInstruments

Abstract

There is disclosed a diazotype copier for deodorizing developed diazocopy material. The copier includes a light source for exposing the diazotype copy material and a developing chamber for developing the exposed copy material. After exiting the developing chamber, the developed material passes under a heating chamber which includes a heating element and means for providing a flow of air into the chamber, around the heating element, and across the developed copy material. The heating air releases the entrapped ammonia vapors from the developed copy material. Thereafter, the air, including the released ammonia vapors, flows toward and into a scavenging device which neutralizes the ammonia vapors.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.