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. 27, 1987
Filed:
Oct. 29, 1984
Applicant:
Inventors:
Karl A Stetson, Coventry, CT (US);
John Palecki, Northampton, MA (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; G01D / ; G01L / ; G01F / ;
U.S. Cl.
CPC ...
250227 ; 2502 / ; 73702 ; 7386121 ;
Abstract
An airflow detection system comprising a light source for generating an optical signal that is propagated in an optical guide having a plurality of sensors responsive to the presence of airflow, each of which modulates the intensity of the optical signal at a frequency characteristic of that sensor such that a detection apparatus can receive the optical signal and identify activated sensors using frequency domain multiplexing techniques.