Geometrical instruments – Apparel – Laying out
Patent
1994-11-14
1995-12-19
Wirthlin, Alvin
Geometrical instruments
Apparel
Laying out
33 1B, 33 15D, G06C 300
Patent
active
054759293
ABSTRACT:
A device and method of estimating a percentage of calories derived from fat contained within each serving of a food product when the amount of fat by weight and total calories per serving of the food is known or may be estimated. The device includes viewable indicia printed on at least one side of a rigid or semi-rigid rectangular sheet. The indicia includes a grid or array of numerals arranged in rows and columns and increasing both horizontally and vertically, each numeral representing a percent of calories derived from fat. The indicia further includes a first increasing numerical scale along an upright margin of the grid, each numeral representing a different amount of fat content by serving weight corresponding to a particular row. A second numerical scale is positioned along a horizontal margin of the grid, each numeral representing a quantitative number of calories corresponding to a particular column. The device also includes a flat, rectangular sleeve slidably engagable along the length of the sheet, the sleeve providing a movable horizontal sight line alignable with any particular row. The sleeve also includes a duplicate or repeat of the second scale positioned along the sight line. When properly positioned in alignment with a particular quantity of fat by serving weight, the sight line is projected along that corresponding row, whereafter the percent of calories from fat may be read immediately adjacent the particular numeral of the duplicate second scale representing total calories in the serving size.
REFERENCES:
patent: 2495777 (1946-07-01), Schroeder
patent: 3514582 (1970-05-01), Sanderson
patent: 5007174 (1991-04-01), Cook
patent: 5178416 (1993-01-01), Wennik
Prescott Charles J.
Wirthlin Alvin
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