Title: Ducting construction for engineering design models

Abstract: An engineering design model of a large and complex installation, such as a chemical processing plant or a power generating station, including three-dimensional representations of ducting, beams, piping, valves, fittings, vessels and associated equipment. An assortment of ducting fabrication segments of various sizes and colors are used to form the ducting, each segment being a flat solid member of rectangular outline having longitudinal, step-shaped, nesting configurations extending along its two longest parallel edges. The segments are connected in groups of four with the nesting configurations interlocked to form hollow ducting representations of a large variety of sizes and proportions. Transparent segments can be color coded by marking their edges.

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Inventors: Wanderman, Herbert A. (Pasadena, CA, US)

Application Number: 801856
Filing Date: 1977-05-31
Publication_date: 1978-06-20
Assignee: Engineering Model Associates, Inc. (Monterey Park, CA)
Primary Class(es): 434/72 434/370, 446/476
Other Classes:
US Patent Ref:

2320292	May, 1943	Nelson	46/25.
3137967	Jun, 1964	Flieth	46/30.
3594922	Jul, 1971	Ellis	35/16.
3690672	Sep, 1972	Dreyer	46/24.

Other Refs:
Primary Examiner: Skogquist, H. S.
Assistant Examiner:
Attorney: Fulwider, Patton, Rieber, Lee & Utecht