Magnetrol International, Inc.

James Thomas Borthwick, Jr

Paul G Janitch

Michael J Mulrooney

Cesar L Queyquep

Christopher Michael Zalud

An insulated probe assembly is disclosed for use with a process instrument adapted to detect a condition of a material in a process vessel. The probe assembly includes an adaptor receivable in an opening of the process vessel. The adaptor includes a through opening having an enlarged counterbore at an outer end defining an inner shoulder. A probe extends through the adaptor into the process vessel. The probe narrows from an outer process end to an inner end at a sloped shoulder positioned in the counterbore of the adaptor. An insulator sleeve surrounds the probe and has an inner end extending into the adaptor counterbore and engaging the shoulder, and an opposite outer end extending beyond an outer end of the probe. A plug is provided for sealing the probe in the insulator sleeve at the sleeve outer end. A tubular insulating probe cover surrounds the sloped shoulder of the probe and is at least partially received in the adaptor end of the insulator sleeve and extends beyond the shoulder. The probe is secured to the adaptor, wherein the sloped shoulder of the probe exerts a generally radial force on the probe cover to minimize stress.

Insulated capacitance probe

An improved mounting arrangement is shown for a magnetostrictive level sensing instrument for sensing level of a process fluid in a process vessel. The process vessel includes an opening into a storage space in the vessel. The improvement includes an elongate tube having a closed end and an opposite open end. A process fitting receives the open end of the outer tube, the process fitting being adapted to be received in the vessel opening, in use, whereby the process fitting and the elongate tube seal the vessel opening. A magnetostrictive wire assembly is removably received in the elongate tube through the open end for operatively sensing position of a magnetic float captured on the elongate tube and floating atop the fluid in the vessel. A housing is mounted to the adaptor fitting and supports the wire assembly when the wire assembly is received in the tube.

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Winfield, IL, United States of America

James Thomas Borthwick, Jr