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. 23, 2010
Filed:
Apr. 18, 2007
John W. Berthold, Salem, OH (US);
David B. Needham, Magnolia, TX (US);
John W. Berthold, Salem, OH (US);
David B. Needham, Magnolia, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A dual cantilevered beam structure is attached to a silicon frame. An optical fiber extends from a borosilicate wafer bonded to the bottom of the frame. A second borosilicate wafer is bonded to the top of the frame. The bottom borosilicate wafer is bonded to the optical fiber with a bonding agent having an index of refraction between the refractive index of the fused silica optical fiber and the refractive index of the borosilicate wafer. In an embodiment, the bonding agent has a refractive index substantially similar to optical cement. Light is reflected into the optical fiber from the beam structure for measuring seismic changes.