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:
Jun. 24, 2025
Filed:
Feb. 09, 2022
Applicant:
Simmonds Precision Products, Inc., Vergennes, VT (US);
Inventor:
David H. Crowne, Weybridge, VT (US);
Assignee:
Simmonds Precision Products, Inc., Vergennes, VT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 23/292 (2006.01); G01F 23/80 (2022.01);
U.S. Cl.
CPC ...
G01F 23/292 (2013.01); G01F 23/804 (2022.01);
Abstract
An optical sensor includes an optic fiber optically coupled to a cavity. An optical path is defined from the fiber, across the cavity, and reflected back across the cavity back into the fiber. The cavity is an open cavity that is in fluid communication with an environment ambient to the cavity for detection of changes in index of refraction inside the cavity due to whether the environment ambient to the cavity is gaseous or liquid.