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. 28, 2020
Filed:
Oct. 10, 2018
Applicant:
James Thomas Camp, Colonial Beach, VA (US);
Inventor:
James Thomas Camp, Colonial Beach, VA (US);
Assignee:
United States of America, as represented by the Secretary of the Navy, Arlington, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/10 (2006.01); G01R 33/02 (2006.01); G08B 21/18 (2006.01); G08B 3/10 (2006.01); G08B 5/36 (2006.01);
U.S. Cl.
CPC ...
G01V 3/10 (2013.01); G01R 33/02 (2013.01); G08B 21/182 (2013.01); G08B 3/10 (2013.01); G08B 5/36 (2013.01);
Abstract
A passive magnetic flux detector (PMFD) is provided for indicating an ambient magnetic field. The PMFD includes a coil, a rectifier, and an indicator. The indicator is either a light emitting diode (LED), a piezoelectric speaker or both.