Patent · US Expired

Machine for filling and closing two-piece capsules

US4964262A · kind A · utility

48Cited by

5References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Theodor Moser · Steinenberg, DE
Eberhard Krieger · Waiblingen, DE

Key dates

Filing date	Aug 11, 1989
Grant date	Oct 23, 1990
Priority date	—
Expiry date	Aug 11, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S53/90
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A capsule filling and capping machine including a testing apparatus for ascertaining the presence of capsule pieces (bottom and cap) in the conveyor apparatus. The conveyor apparatus includes receptacles into which the capsules are tightly inserted. A test head, with chambers disposed in it that communicate with a source of negative pressure or overpressure, respectively, via a throttle is brought into contact with the receptacles, and the pressure of the chambers is monitored by pressure sensors. The output of piezorestrictive pressure sensors is evaluated electronically and processed further into signals to prevent capsules from being filled, to reject defective capsules, or to stop the machine if there is a problem related to one of the capsules.

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