Title:
SHEATHED THERMOCOUPLE AND SHEATHED THERMOCOUPLE MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/213182
Kind Code:
A1
Abstract:
This sheathed thermocouple comprises: thermocouple wires; a metal sheath which accommodates the thermocouple wires; an inorganic insulating powder which fills the interior of the metal sheath; a glass sealing part which seals an opening of the metal sheath when the thermocouple wires have been passed therethrough; compensating lead wires which are joined to the thermocouple wires; a metal sleeve, the tip of which has a cylindrical shape joined to the outer peripheral surface of the metal sheath, and in the interior of which a section of the metal sheath further toward the base end than the joining part, a base end part of the thermocouple wires, and a tip end part of the compensating lead wires are located, the thermocouple wires and the compensating lead wires being positioned so as to not make contact with each other; and a glass fill part which is formed from a glass having a lower softening temperature than the glass sealing part and which fills the space inside the metal sleeve.
Inventors:
YAMANA MASARU (JP)
Application Number:
PCT/JP2019/030118
Publication Date:
October 22, 2020
Filing Date:
August 01, 2019
Export Citation:
Assignee:
OKAZAKI MFG COMPANY (JP)
International Classes:
G01K1/08; G01K7/02
Domestic Patent References:
| WO2014125078A1 | 2014-08-21 |
Foreign References:
| JP2004045334A | 2004-02-12 | |||
| JPS478868B1 | 1972-03-14 | |||
| JPS57133328A | 1982-08-18 | |||
| JPH11166867A | 1999-06-22 | |||
| JPS5420809B1 | 1979-07-25 | |||
| JP2019078074A | 2019-05-23 |
Other References:
See also references of EP 3751246A4
Attorney, Agent or Firm:
KOTANI, Etsuji et al. (JP)
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