# US 4,396,792 A · Reusable thermocouple assembly

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- Number: US 4,396,792 A
- Document ID: US4396792A
- Status: Granted
- Kind: A
- Application number: 06/255,080
- Filed: 1981-04-17
- Granted: 1983-08-02
- Earliest claimed: 1981-04-17
- Inventors: Richard A. Falk
- Web page: https://patentgrep.com/patent/US4396792A

## CPC

- G01K 1/08: Protective devices, e.g. casings
- G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00)

## Abstract

A repeating use thermocouple assembly includes a refractory fiber protective sleeve with a dome-shaped end wall which encapsulates the assembly. A blanket of refractory fiber is wrapped around the thermocouple element to protect the components of the assembly.

## Claims

### Claim 1

In a repeating use immersion thermocouple assembly for a molten metal bath including a support tube, a temperature sensing element having a U-shaped projecting tip having spaced legs and a rigid support means in said cavity for supporting said temperature sensing element and enabling manipulation of the element in a molten metal bath, the improvement comprising a refractory fiber sleeve having a cavity for encasing and protecting said support means and said temperature sensing element, said sleeve having an opening for exposure of said projecting tip and a blanket of refractory fiber arranged around and through said legs to fill the cavity of said sleeve, and means to secure said refractory fiber in place.