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:
Oct. 07, 2014
Filed:
Jul. 14, 2009
Applicants:
Joseph K-w Lam, Bristol, GB;
David Osborne, Bristol, GB;
Norman Mark Ratcliffe, Bristol, GB;
Inventors:
Assignee:
Airbus Operations Ltd, Bristol, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/00 (2006.01); G01N 21/64 (2006.01);
U.S. Cl.
CPC ...
G01N 21/643 (2013.01); G01N 2021/6439 (2013.01); Y02T 10/34 (2013.01); G01N 2021/6432 (2013.01); F01M 21/12 (2013.01);
Abstract
A monitor for monitoring the concentration of oxygen in a fuel or in an ullage over a fuel comprises (i) a sensing element comprising a luminescent substance comprising a luminophore and a support in which the luminophore is covalently bound to the support, (ii) a light source arranged to irradiate the sensing element with light, and (iii) a photosensor arranged to detect light emitted from the luminescent substance. The luminescent substance may be, for example, a platinum porphyrin covalently bound to silica.