Patent · US Active

Apparatus for the measurement of the vertical position of upper and lower punches of a rotary tablet press

US7988440B2 · kind B2 · utility

3Cited by

7References

9Claims

0Family size

Assignee

FETTE GMBH · DE

Inventors

Ingo Schmidt · Schwarzenbek, DE
Keno Freyer · Neubukow, DE
Werner Seifert · Bargteheide, DE
Wolfram Lammerhirt · Schwarzenbek, DE

Key dates

Filing date	Mar 20, 2009
Grant date	Aug 2, 2011
Priority date	—
Expiry date	Mar 26, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB30B11/005
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The present invention is related to an apparatus and a method for the measurement of the vertical position of upper and lower punches, pairwisely associated to a rotatably driven rotor of a rotary tablet press and rotating synchronously with the rotor, which perform a vertical movement in certain regions along the circumference of their rotational movement during a rotation of the rotor. The apparatus features at least one scale arranged on at least one of the upper and/or lower punches, running in parallel to the vertical movement direction of the respective upper and/or lower punch, and at least one reading device associated to the scale, also rotating synchronously with the rotor, by means of which a vertical position of the respective upper and/or lower punch can be measured by reading out the scale. The inventions is furthermore related to a corresponding rotary tablet press and a corresponding method.

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