Fiber-optic thermometer
Patent 4176551 Issued on December 4, 1979. Estimated Expiration Date: 
October 10, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 10, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3639770 3810065 3871232 Thermometer insertable in winding of fluid cooled transformer Optical temperature probe Temperature measuring process and probe Thermometer with birefringent sensing element in fiber optic coupling Semiconductor temperature sensor Patent #: 4136566 InventorsAssigneeApplicationNo. 05/949428 filed on 10/10/1978US Classes:374/161, Change of optical property374/131With radiation conducting elementExaminersPrimary: Watkins, DonaldAttorney, Agent or FirmInternational ClassesG01K 5/30 (20060101)G01K 5/00 (20060101) G01K 1/00 (20060101) G01K 1/02 (20060101) AbstractA species of fiber-optic thermometer, employing a gas-sealing movable reflecting element trapping a sealed gas column in a capillary as a temperature-sensitive medium, transfers a proportion of fiber-optic input light to a fiber-optic output as a single-valued function of temperature. This species provides a miniature thermometer exhibiting high temperature sensitivity. | |
