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US 6,104,011 AGranted
Sheathed thermocouple with internal coiled wires
AssigneeWatlow Electric Manufacturing Company
InventorRolando O. Juliano
Life of this patent
Estimating the term…
Abstract
A thermocouple with a tubular metallic sheath extending longitudinally about a sheath centerline; a first wire of a first material within the sheath and coiled about a first centerline lying parallel to the sheath centerline; a second wire of a second material within the sheath and coiled about a second centerline lying parallel to the sheath centerline; a hot junction within the sheath connecting the wires; and a layer of insulation separating the wires from each other and from the sheath.
Claims28
A thermocouple comprising:
- a tubular metallic sheath extending longitudinally about a sheath centerline;
- a first single strand of non braided wire of a first material enclosed within said sheathr and helically coiled about a first centerline lying parallel to said sheath centerline;
- a second single strand of non braided wire of a second material enclosed within said sheath and helically coiled about a second centerline lying parallel to said sheath centerline;
- a hot junction enclosed within said sheath connecting said first and second wires;
- and
- a layer of insulation separating said first and second wires from each other and from said sheath.
3 more elements
An electrical heater, comprising:
- a tubular metallic sheath extending longitudinally about a sheath centerline;
- a thermocouple entirely enclosed within said sheath and including
- a first single strand of non-braided wire of a first material helically coiled about a first centerline lying parallel to said sheath centerline;
- a second single strand of non-braided wire of a second material helically coiled about a second centerline lying parallel to said sheath centerline;
- and
- a hot junction connecting said wires;
- a heater wire within said sheath extending longitudinally parallel to said sheath centerline;
- and
- a layer of insulation separating said wires from each other and from said sheath.
6 more elements
An electrical heater, comprising:
- a tubular metallic sheath extending longitudinally about a horizontal sheath centerline, said sheath having a flat vertical side, said vertical side having a height greater than the horizontal transverse width of said sheath;
- a thermocouple entirely enclosed within said sheath and including
- a first single strand of non-braided wire of a first material helically coiled about a first centerline lying parallel to said sheath centerline;
- a second single strand of non-braided wire of a second material helically coiled about a second centerline lying parallel to said sheath centerline and aligned in a vertical plane with said first wire;
- and
- a hot junction connecting said thermocouple wires and disposed in the same vertical plane as said first and second thermocouple wires;
- a first heater wire within the sheath extending longitudinally parallel to said sheath centerline and lying in the same vertical plane as said thermocouple;
- and
- a layer of insulation separating said first and second thermocouple wires and said first heater wire from each other and from said sheath.
6 more elements
A thermocouple, comprising:
- a tubular metallic sheath having greater height than width and extending longitudinally about a sheath centerline and having two flat sides and rounded top and bottom, all disposed symmetrically about a vertical plane;
- a first single strand of non-braided wire of the first material enclosed within said sheath and helically coiled about a first centerline lying parallel to said sheath centerline and in the vertical plane of said sheath;
- a second single strand of non-braided wire of a second material enclosed within said sheath and helically coiled about the a second centerline lying parallel to said sheath centerline and in the vertical plane of the said sheath;
- a hot junction enclosed within said sheath connecting said wires and lying in the vertical plane of said sheath;
- and
- a layer of insulation seperating said wires from each other in the vertical planes of said sheath and separating said wires laterally from said sheath, said insulation being disposed symmetrically with respect to said vertical plane.
3 more elements
Dependencies are inferred from the claim text.