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US 5,766,299 AGranted
Mold for shaping glass
OwnerRonald P. Millerinventor
Life of this patent
Estimating the term…
Abstract
A unitary mold member for shaping glass includes an inner surface which shapes molten glass blown thereagainst and an outer surface. A cavity within the unitary mold member is positioned between the inner and outer surfaces. The unitary mold member has passages at about the upper end thereof between the cavity and the surrounding atmosphere. The unitary mold member also has passages at about the lower end thereof between the cavity and the surrounding atmosphere.
Claims7
A mold member for shaping glass and positioned within a surrounding atmosphere, said mold member having an upper end and a lower end, and comprising:
- an inner surface which shapes molten glass blown thereagainst;
- an outer surface;
- a cavity within said mold member positioned between said inner and outer surfaces;
- at least one passage at about the upper end of said mold member between said cavity and the surrounding atmosphere;
- at least one passage at about the lower end of said mold member between said cavity and the surrounding atmosphere, with the surrounding atmosphere flowing through said at least one passage at about the upper end of said mold member said cavity, and said at least one passage at about the lower end of said mold member;
- and
- baffle means in juxtaposition to the upper end of said mold member at about said at least one passage at about said upper end, whereby the flow of the surrounding atmosphere is restricted.
4 more elements
Dependencies are inferred from the claim text.