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. 04, 2008
Filed:
Jun. 30, 2005
James R. Dunphy, South Glastonbury, CT (US);
John J. Sgambelluri, Meriden, CT (US);
John Grunbeck, Northford, CT (US);
George Talmadge, Clinton, CT (US);
Robert F. Robinson, Middletown, CT (US);
James M. Sullivan, East Hampton, CT (US);
Joseph F. Robbins, Monson, MA (US);
James R. Dunphy, South Glastonbury, CT (US);
John J. Sgambelluri, Meriden, CT (US);
John Grunbeck, Northford, CT (US);
George Talmadge, Clinton, CT (US);
Robert F. Robinson, Middletown, CT (US);
James M. Sullivan, East Hampton, CT (US);
Joseph F. Robbins, Monson, MA (US);
Weatherford/Lamb, Inc., Houston, TX (US);
Abstract
Optical sensors used in harsh environments require a sealed pressure tight passage of an optical waveguide into an interior of the sensor. In one embodiment, a pressure sensor assembly for determining the pressure of a fluid in a harsh environment includes a sensing element suspended within a fluid filled housing. An optical waveguide that provides communication with the sensing element couples to a feedthrough assembly, which includes a cane-based optical waveguide forming a glass plug sealingly disposed in the housing. The glass plug provides optical communication between the optical waveguide and the sensing element. A pressure transmitting device can transmit the pressure of the fluid to the fluid within the housing. The assembly can maintain the sensing element in a near zero base strain condition and can protect the sensing element from shock/vibration.