Patent · US Expired

Apparatus for the heat treatment of ophthalmic lenses, especially contact lenses

US5340399A · kind A · utility

11Cited by

10References

19Claims

0Family size

Assignee

Ciba-Geigy · US

Inventors

Winfried Uftring · Alzenau, DE
Theo Bachmann · Heigenbrücken, DE
Helmut Geis · Mittelstreu, DE
Lothar Haase · Westerburg, DE

Key dates

Filing date	Mar 17, 1993
Grant date	Aug 23, 1994
Priority date	—
Expiry date	Mar 17, 2013

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF27B9/38
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

In an apparatus for the heat treatment of ophthalmic lenses, especially contact lenses, which comprises an approximately cylindrical housing of closed design having an inlet opening and an outlet opening, transport device for transporting the ophthalmic lenses located inside molds along an open transport path, which is arranged inside the housing and connects the inlet and the outlet opening, and heating device arranged inside the housing, the open transport path inside the housing is of an essentially spiral shape, and the heating device are arranged essentially above and below the transport path.

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