Temperature probe
AssigneeRosemount Inc.
InventorJohn L. Reuvers
Life of this patent
Estimating the term…
Abstract
A temperature probe includes a mineral-insulated cable having a metallic outer sheath surrounding a mineral insulation therein. The mineral-insulated cable has a plurality of conductors running through the mineral insulation. A temperature sensitive element has a pair of lead wires. An insert has at least one conduit to receive the pair of lead wires of the temperature sensitive element. The insert also has a recess configured to receive the temperature sensitive element. An insert sheath is configured to slide over the insert and has a first end configured to couple to the metallic outer sheath of the mineral-insulated cable and a second end. An endcap is attached to the second end of the insert sheath. The insert is configured to urge the temperature sensitive element into contact with the endcap.
Claims17
A temperature probe comprising:
- a mineral-insulated cable having a metallic outer sheath surrounding a mineral insulation therein, the mineral-insulated cable having a plurality of conductors running through the mineral insulation;
- a rectangular thin film RTD having a pair of lead wires operatively coupled to the plurality of conductors, the rectangular thin film RTD having an electrically insulative flat surface;
- an insert having a plurality of apertures, each aperture being configured to receive a respective lead wire of the rectangular thin film RTD, the insert having a rectangular recess configured to receive the rectangular thin film RTD, wherein the insert includes a trough region where the pair of lead wires is operatively coupled to the plurality of conductors of the mineral insulated cable;
- an insert sheath configured to slide over the insert, the insert sheath having a first end configured to couple to the metallic outer sheath of the mineral-insulated cable, the insert sheath also having a second end;
- and
- an endcap attached to the second end of the insert sheath;
- wherein the electrically insulative flat surface of the rectangular thin film RTD is in direct contact with the endcap.
Dependencies are inferred from the claim text.