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. 21, 1990
Filed:
Dec. 08, 1988
Applicant:
Inventor:
Johan A Govaert, Peabody, MA (US);
Assignee:
Airborne Research Associates, Inc., Weston, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
324 72 ;
Abstract
A device to remove the dead band in atmospheric electric potential measurements while maintaining a low leakage path to ground. In one embodiment the device comprises a AC high voltage source connected through a high ohm resistor and capacitor network to a sharp corona point and a means for measuring the current through the corona point.