Method of drying molds and apparatus for supplying drying air

US7367140B2 · kind B2 · utility

Assignee

• Novartis AG · CH

Inventors

• Michael L. Wolf · West Milton, US
• Bernhard Seiferling · Goldbach, DE
• Axel Heinrich · Aschaffenburg, DE
• Peter Hagmann · Erlenbach a.Main, DE
• Thomas Richter · Erlangen, DE

Key dates

• Filing date: Dec 6, 2005
• Grant date: May 6, 2008
• Expiry date: Jan 23, 2026

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C33/72
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

In a method of drying molds or mold parts for the manufacture of optical lenses, in particular ophthalmic lenses and especially contact lenses, the mold or mold part to be dried is exposed to drying air. For this purpose, humid pressurized air (T) is used to which the mold or mold part is exposed.