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:
Mar. 20, 1990
Filed:
Aug. 25, 1988
Applicant:
Inventors:
Richard S Harner, Midland, MI (US);
Bruce W Gutzmann, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9620 ; 350 9618 ;
Abstract
A fiber optic probe adapted to be immersed in a fluid medium has an opening at one end in which is accommodated an optical window through which light may be transmitted from and to the optical fibers. Seals between the optical element and the probe body are provided to prevent the leakage of fluid past the window into the probe body. One or more resilient biasing springs constantly apply a yieldable, compressive force on the seals regardless of thermal expansion and contraction of any part of the probe.