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:
Jul. 18, 1989
Filed:
May. 25, 1988
Applicant:
Inventor:
Joseph Magill, Karlsruhe, DE;
Assignee:
European Atomic Energy Community (EURATOM), Luxembourg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64D / ; E01H / ;
U.S. Cl.
CPC ...
239-21 ; 239 141 ; 239171 ; 239123 ;
Abstract
The invention relates to a process for the controlled disposal of an aerosol cloud by means of directed sound waves of high intensity in the audible frequency range. According to the invention, sound waves are emitted by an aircraft (8, 10) operating close to the periphery of the cloud (4). The frequency spectrum of the wave consists of a basic frequency and a superposing frequency of twice the basic frequency valve and phase-shifted in relation to the basic frequency at substantially 90.degree., so as to cause the particles to coagulate and to migrate towards the sound source, and to be collected at the aircraft.