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:
Jun. 30, 1987
Filed:
Sep. 04, 1985
Richard Engel, Bornheim-Waldorf, DE;
Manfred Voll, Erlensee, DE;
Degussa Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
A method for the consumption dependent complete vaporization of liquid nitrogen oxide is shown where the liquid nitrogen oxide under pressure is passed through a buffer tank and is charged into a falling film evaporator. The unevaporated residual amount of nitrogen oxide is then subjected to heat in an after evaporator in order to completely vaporize the nitrogen oxide. The combined streams are then led out of the falling film evaporator and after evaporator through at least one safety trap to the ultimate take-off points. This results in the charge of the liquid material to the falling film evaporator being controlled through the pressure in the conduit system between the falling film evaporator and the points of utilization and permits a constant, previously determined pressure to be maintained in the system independently of the amount of material withdrawn.