Patent · US Expired

Compressing machine for making tablets

US4943227A · kind A · utility

27Cited by
11References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 19, 1988
Grant dateJul 24, 1990
Priority date
Expiry dateDec 19, 2008

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S425/035
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A tablet making machine consisting of a turret, which rotates relative to its axis, containing a coaxial cylindrical chamber closed at the inside end and supplied with material in a powder or granular form, an annular plate locked to the turret in which there are cavities whose axes are parallel to the turret axis, equidistant from the turret axis and angularly equidistant, opposing heads of a pair of corresponding punches occupying each cavity; the punches being axially guided by housings made in the turret and movable upwardly and downwardly to determine the mutual distance between the working heads, the cavities being infed with material through corresponding infeed channels, connecting the cavities with the chamber, in an equal number of radial directions with respect to the axis of the turret.

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