Patent · US Active

Weighing system of monolithic construction including flexural pivot

US7534971B2 · kind B2 · utility

9Cited by

5References

9Claims

0Family size

Assignee

Sartorius AG · DE

Inventors

Otto Kuhlmann · Oettingen, DE
Peter Fleischer · Nuremberg, DE
Friedrich Helmsen · Oettingen, DE
Thomas Fehling · Witzenhausen, DE

Key dates

Filing date	Aug 6, 2007
Grant date	May 19, 2009
Priority date	—
Expiry date	Aug 6, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG01G21/244
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A weighing system having a base region (1), a parallel-guided load receiver (4), at least one transmission lever (2) that is pivotably mounted on the base region via at least one flexural pivot (3), and a coupling element (7) that connects the load sensor to the short lever arm of the transmission lever. The flexural pivot (3), at least one part of the transmission lever (2), and at least one part of the base region (1′) are monolithically formed from a block. The flexural pivot (3) is separated from the rest of the block by four horizontal parallel bores (31, 32, 33, 34) that are adjacently arranged in an annular manner in such a way as to respectively leave a thin connecting segment (36, 37, 38 39) between adjacent bores, and by additional slots. In this way, a hysteresis-free flexural pivot can be created without the need for separate assembly components.

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