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:
Nov. 02, 1976
Filed:
Mar. 24, 1975
Applicant:
Inventors:
Gunter Raab, Erlangen, DT;
Klaus Zeuch, Eckental, DT;
Assignee:
Siemens Aktiengesellschaft, Munich, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M / ; G01M / ;
U.S. Cl.
CPC ...
73 407 ; 73 493 ; 2323 / ;
Abstract
In an apparatus for the preparation of compounds in which one of the components is a highly volatile reactive component, in particular when preparing gallium phosphide, under pressure in an ampoule located in a pressure vessel, between 0.5 and 25% by volume and preferably 1.5 to 3% by volume of a gas capable of reacting with the highly volatile component, such as oxygen, air or carbon dioxide, is mixed in the pressure vessel to the gas which is used for pressurizing and as a cooling medium and the pressure in the pressure vessel is matched to the internal pressure of the ampoule in which the reaction is taking place.