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:
Jan. 13, 1976
Filed:
Aug. 13, 1974
Applicant:
Inventor:
Jean Mourier, Savigny-sur-Orge, FR;
Assignee:
Benson, Creteil Val-de-Marne, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L / ;
U.S. Cl.
CPC ...
7339 / ; 73403 ;
Abstract
The invention relates to a negative pressure or depression detector characterized in that it includes a floating element which forms at once a detecting element and the movable disc or plate of an air capacitor. The floating element is placed inside a chamber having its lower end vented and its upper end communicating with the depression source, the fixed plate of the capacitor being located at the lower end of the chamber without interfering with the venting.