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Rosemount Analytical Inc.

Douglas Evan Simmers

Joseph C Nemer

James D Kramer

Mark D Stojkov

Anni S Wey

A process combustion transmitter is provided. The transmitter includes a process probe extendible into a flow of process combustion exhaust. The process probe has a measurement cell with an operating temperature that is above a flashpoint of process combustion fuel. The process probe includes a heater configured to heat the measurement cell to the operating temperature. Electronic circuitry is coupled to the measurement cell and to the heater. The electronic circuitry is configured to disengage power to the heater once process combustion heat is sufficient to maintain the measurement cell at the operating temperature and thereafter to maintain the heater in a de-energized state.

Method of operation an in SITU process probe

A process combustion transmitter is provided. The transmitter includes a process probe extendible into a flow of process combustion exhaust. The process probe has a measurement cell and a diffuser that define a chamber within the process probe. Electronic circuitry is coupled to the measurement cell and is configured to provide an indication relative to a combustion process based on an output signal of the measurement cell. A pressure sensor is coupled to the electronic circuitry and is fluidically coupled to the chamber. The electronic circuitry is configured to provide an adjusted calibration based on pressure measured within the chamber during a calibration.

In situ probe with improved diagnostics and compensation

An improved tracking device comprised of a lightweight structural design optimized to carry it's own mass, that mass of a lightweight incident surface or surfaces for reflecting or absorbing energy, and to withstand the forces of low to medium wind loads. A weathervaning stowage mode is initiated under high wind conditions that will inherently rotate the structure such that the reflective facets will face away from the oncoming wind and any entrained dust, hail, or other particulate. The incident surfaces will also pivot upwards via pivots near the top mounting point to reduce the surface area presented to the wind and the resultant aerodynamic forces. A fixed wind deflector is employed to transfer wind load from the top of the incident surface(s) above the point of rotation where the wind load inhibits rotation to the bottom of the facet where upward rotation is enhanced.

Tracking device with weathervaning wind stowage mode of operation

An improved device for reflecting, radiating, or receiving electromagnetic radiation, acoustic waves, or other energy forms through the use of a membrane stretched across a lightweight, round, frame structure. A near perfectly round and flat semi-rigid backplane surface () and a near perfectly round ring or stack of rings () are mutually reinforced, forming a raised circumferential planar surface, and a cavity within. A membrane () is attached to the top of the rings, forming one wall of a sealed chamber. A source of sub-ambient pressure () is applied to the chamber, causing a primary uniform deformation in the membrane for the purpose of manipulating electromagnetic radiation, acoustic waves, or other energy. The backplane surface also deforms uniformly, increasing the strength of the structure. A flat, rigid floating batten () prevents waves or wrinkles from forming in the membrane material. A circumferential heating element () and insulation () provides tensioning of the membrane by slightly controlling the circumference of the device.

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Massillon, OH, United States of America

Douglas Evan Simmers