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:
Aug. 16, 1977
Filed:
Jan. 07, 1976
Applicant:
Inventors:
Alain Gibert, Gan, FR;
Roger Camps, Jurancon, FR;
Assignee:
Societe Nationale des Petroles d'Aquitaine, Courbevoie, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; B03C / ;
U.S. Cl.
CPC ...
73 28 ; 55152 ;
Abstract
The present invention is related to a device for measuring the mass of particles of an aerosol per volume unit. It comprises a solid measuring body, measuring means for measuring the resonance frequency of said solid measuring body, means for generating a flow of air loaded with particles and for directing said air flow toward a planar receiving electrode and means for electrically loading said particles with a polarity opposed to that of the planar receiving electrode.