Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 5044453 | Weighing instrument having interchangeable slides carrying graduated scales A weighing instrument for the analysis of the weight-related characteristics of different materials has a pointer rotated about an axis in response to the weight of the material and which indicates a selected characteristic of the material on a selected g... | 09/03/1991 |
| 5033561 | Diet control device This invention pertains to a diet control device and more particularly a novel device using a unique method to assess the intake of all nutritive and other substances in a passive, unobstrusive, and utilitarian way. This provides a means for a method of b... | 07/23/1991 |
| 4911256 | Dietetic measurement apparatus A dietetic measurement apparatus (10) having computer means (30) having a controlling instruction means to provide a determination of basic integers for a mass of a food item weighed on a weighing means (32). The weighing means (32) provides a weighing si... | 03/27/1990 |
| 4575804 | Diet calculator A new and novel calculator for use by cooks, dieters and others is disclosed. The calculator may be made in a hand-held model and may be made in a scale version for use in the kitchen. The calculator permits instant access to counting of calories, carbohy... | 03/11/1986 |
| 4387777 | Calorie counting method and apparatus Caloric counting method and apparatus comprises a base support structure, a plate support structure pivotally mounted on the base support structure, and scale means connected to said plate support structure at a point remote from the pivot line thereof. A... | 06/14/1983 |
| 4244020 | Caloric and/or carbohydrate calculator A calculator for use in calculating the appropriate caloric and/or carbohydrate value of a food or drink item that is to be consumed by the user of the device is disclosed. The calculator utilizes a modified four-basic-function calculator of the type havi... | 01/06/1981 |
| 4223750 | Weighting instrument for dietetic use The weighing instrument has a receiving tray and an index mark displaceable in front of a fixed dial graduated in weight. It comprises means enabling the user to place, in a position enabling it to operate in association with said index mark, any one of s... | 09/23/1980 |
