Glass blank mold and related methods
AssigneeOwens-Brockway Glass Container Inc.
InventorsPeter Severson, Daniel Newsom
Life of this patent
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Abstract
A method includes forming a first parison in a glass blank mold, forming a first glass container from the first parison, altering thermal characteristics of the glass blank mold, and subsequently forming a second parison in the glass blank mold and a second glass container from the second parison. Altering the thermal characteristics of the glass blank mold includes forming a heat block channel at the heat block channel locator on an end of the mold or altering coolant flow characteristics of an axial cooling channel by accessing the cooling channel through a coolant deflector of the mold.
Claims15
A method, comprising:
- (a) forming a first parison in a glass blank mold, the glass blank mold having a molding surface, an axial cooling channel radially outboard of the molding surface, and a heat block channel locator on an axial end of the mold, the locator being formed at a location radially inboard of the cooling channel;
- (b) forming a first glass container from the first parison in a glass blow mold;
- (c) altering thermal characteristics of the glass blank mold by forming a heat block channel at the heat block channel locator to interfere with heat transfer through the blank mold;
- (d) forming a second parison in the glass blank mold after step (c);
- and
- (e) forming a second glass container from the second parison in the glass blow mold.
A method, comprising:
- (a) forming a first parison in a glass blank mold, the glass blank mold having a molding surface, an axial cooling channel arranged radially outboard of the molding surface, and an axial access opening formed through a coolant deflector at an end of the glass blank mold, wherein the access opening is aligned with the cooling channel and opens on a deflection surface facing an outlet end of the aligned cooling channel;
- (b) forming a first glass container from the parison in a glass blow mold;
- (c) altering thermal characteristics of the glass blank mold by accessing the outlet end of the cooling channel through the access openings to modify coolant flow characteristics of the cooling channel;
- (d) forming a second parison in the glass blank mold after step (c);
- and
- (e) forming a second glass container from the second parison in the glass blow mold.
A method, comprising:
- (a) receiving a first charge of molten glass into a glass blank mold;
- (b) forming a first parison in a glass blank mold from the first charge of molten glass;
- (c) forming a first glass container from the first parison in a glass blow mold;
- (d) altering thermal characteristics of the glass blank mold to change how heat is transferred from glass in the glass blank mold to the glass blank mold;
- (e) receiving a second charge of molten glass into the glass blank mold after step (d);
- (f) forming a second parison in the glass blank mold from the second charge of molten glass;
- and
- (g) forming a second glass container from the second parison in the glass blow mold, wherein the second glass container has a different distribution of glass than the first glass container;
- wherein step (d) includes:
- forming a heat block channel at a heat block channel locator provided in an end of the glass blank mold in step (a), or altering coolant flow characteristics of an axial cooling channel by accessing the cooling channel through a coolant deflector.
Dependencies are inferred from the claim text.