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:
Nov. 23, 1993
Filed:
Jan. 17, 1992
Applicant:
Inventors:
Richard H Clarke, Scituate, MA (US);
T Eric Hopkins, Wellesley, MA (US);
Wai Chung, Watertown, MA (US);
Stephen DeJesus, Newton, MA (US);
Harvey Harrison, Needham, MA (US);
Assignee:
Boston Advanced Technologies, Inc., Newton, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G08B / ;
U.S. Cl.
CPC ...
436-3 ; 73 492 ; 73 6148 ; 73 6161 ; 250301 ; 340605 ; 340623 ; 340624 ; 422 681 ; 422 8205 ; 422 8208 ; 422 8209 ; 436 27 ; 436 56 ; 436 60 ; 436134 ; 436172 ;
Abstract
Method and apparatus for detecting and/or monitoring the presence of hydrocarbons in a fluid medium at a remote location, by sensing the presence of hydrocarbon-based fluid in the fluid medium in the remote location, generating a signal indicative of the sensed fluid, and transmitting the signal to monitoring means for indication of hydrocarbon contamination. The apparatus has multiple sensors at different vertical levels for sensing the fluid medium at a plurality of levels within the fluid.