Method and apparatus for introducing glass gobs into a glass container forming machine
US5917106A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Oct 14, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B40/027
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A gob of molten glass from a gob delivery system is introduced into a blank mold of a glass container forming machine of the individual section type by way loading funnel immediately upstream of an opening into the blank mold. The loading funnel has an upper annular gathering portion in the shape of an inverted frustum of a cone and a cylindrical lower shaping and orienting section. The internal diameter of the shaping and orienting section is somewhat less than the outer diameter of a gob passing therethrough, to thereby contact the gob in a substantially circumferential pattern, and the shaping and orienting section has a length that is sufficient to precisely align the longitudinal central axis of the gob with a longitudinal central axis of the blank mold, to thereby eliminate or substantially eliminate the need to swab the interior of the blank mold with a mold dopant composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.