Patent · US Expired

Electronic weigher with a weighing scale located above the weigher casing

US4401176A · kind A · utility

8Cited by

3References

8Claims

0Family size

Assignee

Sartorius AG · DE

Inventors

Erich Knothe · Bovenden, DE
Franz-Josef Melcher · Hardegsen, DE
Jurgen Ober · Hardegsen, DE
Walter Sodler · Göttingen, DE
Veronika Martens · Göttingen, DE

Key dates

Filing date	Feb 10, 1982
Grant date	Aug 30, 1983
Priority date	—
Expiry date	Feb 10, 2002

Classification

Technology area (CPC G)Physics
CPC primaryG01G21/23
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Electronic weigher apparatus is disclosed which utilizes a plate situated below the weighing scale and above a load receiver which is part of an electronic weight measuring system. The plate is shaped in such a way that thermal air currents generated by the electronic apparatus are carried through a low air resistance path from the interior to the exterior of the weigher casing while a high resistance airflow path prevents air currents from being carried upward from the electronic apparatus to the weighing scale. A collar encircling the scale prevents external air currents from disturbing it during the loading operation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.