The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 12, 1979
Filed:
Feb. 24, 1978
Gunther Sothje, Selb, DE;
Gebruder Netzsch, Maschinenfabrik GmbH & Co., Selb, DE;
Abstract
A press tool for production of moulded ceramic articles from powder material includes a lower tool part adapted to be supported on a press table and carrying a lower die. A matrix shell encircles the lower die and is mounted to move up and down relatively to it. An upper tool part is adapted to be connected to the plunger of the press and carries an upper die which on lowering of the plunger of the press projects into the matrix shell. To fill the powder material into the cavity defined by the lower die and the matrix shell, an annular hopper in the form of an funnel encircles the upper die and is mounted to slide axially thereon. The hopper has an annular outlet facing radially inwards and opening into the cavity when the hopper is in its lower position with respect to the upper die but closed by the upper die when the hopper is in a raised position relatively to the upper die.