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. 27, 1990
Filed:
Jun. 16, 1989
Applicant:
Inventors:
Assignee:
HWT Gesellschaft fur Hydrid-und Wasserstofftechnik m.b.H., Mulheim/Ruhr, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417 51 ; 417 53 ; 2521816 ; 423248 ; 423644 ;
Abstract
A method of producing a vacuum in a volume of a hollow body which has at least one outlet opening for the gaseous atmosphere present therein, the method includes the following steps: introducing at least about 3 g/dm.sup.3 of evacuation volume of a metal hydride into the hollow body so as to take up less than about 5% of the volume 3. The metal hydride comprises a hydride forming alloy of the formula