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To hold 500 carats or 100 grams of material with a wide range of
specific gravity, yet occupy a minimum of vertical height. |
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To hold the mass to be weighed in as low as a position as possible to
minimize vibrations due to swinging. |
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To maximize viewing of single stones and the material to be weighed. |
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To provide an ambidextrous ergonomic means of picking up, pouring from
and handling the pan. |
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To provide an optimum height above the scale or a table top at which
finger can most comfortably grip the pan or handle of the pan. |
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To provide smooth and controlled pouring of large and tiny gemstones
alike. |
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To help center single stones and small amounts of stones to minimize
off center loading errors. |
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To locate and center a calibration weight. ( The angled section on the
topside on the present pan assists this function by causing the weight
to slip down into position in the base. ) |
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To be attractive to the eye. |
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To have a large top area to facilitate pouring into the pan. |
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To be rugged, durable and strong without adding substantial weight to
the pan. |
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To be designed for anti-static plastics. |
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To be manufacturable with a minimum of defects. |
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To be designed with consideration of top surface being lightly textured
to prevent scratches from being readily apparent, reducing glare and
reflections and facilitate controlled pouring. |
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The underside of the pan, a flat base area, should make for firm,
secure seating when placed on a table top. |
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To define a secure seating position on to the sensor's fixed pan. |
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To provide some degree of an interaction with the upper housing to help
baffle dust, liquids or stones from entering the housing which would
corrupt sensor operations. |
