Fast acting thermocouple
AssigneeTurbo Research, Inc.
InventorsMelbourne F. Giberson, Gerald L. Abrams
Life of this patent
Estimating the term…
Abstract
In a two wire thermocouple, a hollow tip is formed of the material of one of the thermocouple wires, the tip being adapted to extend into a medium the temperature of which is to be measured, both wires extending into a passage in the tip through an open outer end of the passage toward an inner end of the passage, one of the two thermocouple wires, of a material different from said tip, extending entirely through the passage and being welded at the outside of said tip to form a thermocouple junction and the other of the wires, of the same material as the tip, being welded to the tip at a place spaced from the junction.
Claims31
In a two wire thermocouple, the improvement comprising, a hollow tip formed of the material of one of said thermocouple wires, said tip being adapted to extend into a medium the temperature of which is to be measured, both of said wires extending into a passage in said tip through an open outer end of said passage in said tip toward an inner, closed, end of said passage, said closed end having a small hole in it, one of the two thermocouple wires, of a material different from said tip, extending entirely through said passage and said small hole, and being welded at the outside of said tip at said inner end of said passage to form a thermocouple junction and the other of said thermocouple wires, of the same material as said tip, being welded to said tip at a place spaced from the said junction.
In an assembly of a thermocouple, comprising a sheath, a hollow tip, an insulator for separating said tip from said sheath, and thermocouple wires of two distinct materials suitable for making a thermocouple junction, the improvement comprising said tip being made from the same material as one of the thermocouple wires and different from the material from which the other thermocouple wire is made, a hole in said tip from an open end to a closed end of said tip, said dosed end being a thin wall with a small hole in the center of the end, said holes constituting a passage defined by a side wall, the thermocouple wire of a material different from said tip being inserted through said small hole in said end of said tip and welded to said end of said tip to form a bead that forms a thermocouple junction, the thermocouple wire of material common to said tip being inserted through a small hole in said side wall, said thermocouple wire of common material being welded to said side wall of said tip, said tip being electrically isolated from said sheath by means of said insulator.
In an assembly of a thermocouple, comprising a sheath, a hollow tip, an insulator for separating said tip from said sheath, a thermocouple wires of two dissimilar materials suitable for making a thermocouple junction, and sealant, the improvement comprising said tip being made from the material common to one of the thermocouple wires, a closed end of the tip being a thin wall with a small hole in the center of the end, the thermocouple wire of a non-common material being inserted through said hole in said end of said tip and welded to said tip to form a bead that forms a thermocouple junction, a thermocouple wire of material common to the tip being inserted through a small hole in the side wall of said tip at some distance from said thermocouple junction at said end of said tip, said thermocouple wire of common material being welded to said side wall of said tip, said tip being electrically isolated from said sheath by means of an insulator, and said sealant serving to prevent a liquid from passing through the length of the sheath.
Dependencies are inferred from the claim text.