Apparatus for producing an extrusion of material with a central opening

US5242293A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Stefan Klump · Lichtenfels, DE
• Reinhard Fischbach · Birkenfeld, DE

Key dates

• Filing date: Dec 19, 1991
• Grant date: Sep 7, 1993
• Expiry date: Dec 19, 2011

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C48/12
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

An apparatus for producing extrusions, such as optical waveguide plug prongs or sheaths with a central opening, from a deformable composition, includes a receiving body having an outlet opening and having an interior tapering conically at a predetermined first angle of conicity toward the outlet opening. A flow body is to be inserted into the interior of the receiving body. The flow body has an end portion tapering conically at a predetermined second angle of conicity. The second angle of conicity is smaller than the first angle of conicity. A retainer retains the flow body in the interior of the receiving body. The retainer is resilient in radial direction of the interior of the receiving body.