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Clad Industrial Process Transmitter Housing With Chassis

A technology for industrial processes and transmitters, applied in the direction of instruments, measuring instrument components, measuring devices, etc., can solve problems such as time-consuming and money-consuming

Active Publication Date: 2014-07-16
ROSEMOUNT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other materials, like stainless steel, are not easily die cast and instead require a process like investment casting, which is a relatively complex and expensive process compared to die casting
In addition, die casting tends to leave a rougher surface (greater than about 125 Ra), which is undesirable for hygienic applications where rigorous cleaning or disinfection is necessary
Machining all surfaces of a casting for smoothness is an undesirably time-consuming and costly endeavor

Method used

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  • Clad Industrial Process Transmitter Housing With Chassis
  • Clad Industrial Process Transmitter Housing With Chassis
  • Clad Industrial Process Transmitter Housing With Chassis

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0021] Generally, the present invention provides an industrial process transmitter assembly (also called a field device assembly) having a stainless steel skin and an aluminum chassis (or core), and a method of making the same. figure 1 is a schematic block diagram of one embodiment of an industrial process transmitter 20 that includes a sensor 22 , signal circuitry 24 , one or more feedthroughs 26 , and field termination circuitry 28 . The industrial process transmitter assembly 20 is operatively connected to a power source 30 and to a control room 32 via communication lines 34 . Additionally, the industrial process transmitter 20 is installed in a particular area to sense, measure, manage, and / or control the industrial process 36 .

[0022] In one embodiment, sensor 22 is a pressure sensor of known construction positioned in operative contact with industrial process 36 . In alternative embodiments, sensor 22 may be configured to sense or measure temperature, vibration, flow...

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PUM

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Abstract

An industrial process transmitter device (20; 20'; 20") comprising: a housing chassis (50; 50'; 50") of a first metal material and a housing skin (52; 52'; 52"). The housing chassis includes: a generally cylindrical body portion (54); a support member (60), and a second circumferentially extending support member (62) located at or near a second end (58) of the body portion of the housing chassis opposite the first end. The first circumferentially extending support member Extending radially outward from the substantially cylindrical body portion, a second circumferentially extending support member extends radially outwardly from the substantially cylindrical body portion.The housing skin is fitted on the housing chassis and is aligned with the housing chassis Both the first and second circumferentially extending support members are in physical contact.The housing skin is spaced from the housing chassis between the first and second circumferentially extending support members.

Description

technical field [0001] The present invention relates to an industrial process transmitter, and more particularly, to a housing assembly for an industrial process transmitter and a method of manufacturing the housing assembly. Background technique [0002] Industrial process transmitters are used to sense, measure, manage and control processes in industrial process facilities. Typically, industrial process transmitters include sealed and explosion-proof housings. The internal and external geometries of these shells can be relatively complex. In the prior art, these housings are generally one-piece die-casting made of aluminum, which is a particularly suitable material for die-casting. Additional machining is then carried out on the die casting if required, and the casting is painted. However, aluminum is a relatively reactive material, so for certain applications where the housing is exposed to those reactive, corrosive materials, its use is undesirable. Painting and simi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L19/00
CPCG01D11/245Y10T29/49908G01L19/14
Inventor 乔治·查尔斯·豪斯勒尼古拉斯·约翰·海伍德
Owner ROSEMOUNT INC