Other

Richard L Doty

Ling Zhou

Aaron Raymond Scott

A digital odor generator includes a housing and a cylindrically shaped odor chamber carried by the housing and including a plurality of separate odor compartments isolated from each other. A porous hollow cylinder, made of plastic or some other porous material, with an odorant therein is located in each of the odor compartments. A nozzle in the form of a truncated cone is operatively connected to the odor chamber. The nozzle includes an outer face having an enlarged central opening and a plurality of smaller openings surrounding the central opening; the number of smaller openings being equal to the number of odor compartments. The outer face of the nozzle is arranged so that a person can position his or her nose near the openings. Each of the smaller openings is associated with a different one of the odor compartments and is isolated from the others and from the central opening so that the odor from only one odor compartment can be emitted through only one of the smaller openings. A fan within the housing is adapted to pass fresh air through the central opening. And an air pressure source selectively forces one or more of the odorants through their respective odor compartments and out of the nozzle.

Digital odor generator

The test includes a test panel placed between and rotatably secured to a cover and a rear panel. The cover has two windows located adjacent each other. Located adjacent the periphery of the test panel are twelve labels. Below each label is a set of choices. When the cover is placed over the test panel and secured thereto the first set of choices and label should be aligned with their respective windows. To use the test, the person scratches the label located above the first set of choices and then immediately sniffs the label. The person then chooses the item which most closely corresponds with what he/she smells and marks it by darkening the circle located adjacent his/her choice. Once all of the labels have been smelled and the choices marked, the test panel is rotated once more. The correctly marked choices will appear in openings formed on the cover.

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Philadelphia, PA, United States of America

Richard L Doty