Method of drying molds and apparatus for supplying drying air

Drying and gas or vapor contact with solids – Process – Gas or vapor contact with treated material

Reexamination Certificate

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Details

C034S201000, C264S001100, C134S059000, C118S620000

Reexamination Certificate

active

11295321

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.

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patent: 4135803 (1979-01-01), Van Houwelingen
patent: 4704348 (1987-11-01), Koizumi et al.
patent: 5176319 (1993-01-01), Esmond et al.
patent: 5699983 (1997-12-01), Ellsworth
patent: 5762081 (1998-06-01), Keene et al.
patent: 6058624 (2000-05-01), Bach et al.
patent: 6511311 (2003-01-01), Popps
patent: 6811805 (2004-11-01), Gilliard et al.
patent: 2002/0114084 (2002-08-01), Summersgill
patent: 1 566 250 (2003-10-01), None
patent: 909880 (1962-11-01), None
patent: WO 98/42497 (1998-10-01), None

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