Blow back control device for a glass sheet tempering system
US4886540A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 1988 |
| Grant date | Dec 12, 1989 |
| Priority date | — |
| Expiry date | Jul 25, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B29/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A blow back control device (10) for use in a glass tempering system (12) is disclosed as including an air supply member (28) mounted between a glass heating furnace (14) and a quenching station (24). The air supply member (28) supplies a planar jet of high pressure blow back control air generally in a direction of glass sheet conveyance (A) away from an exit opening (20) of the furnace (14) and toward the quenching station (24) at an angle in the range of between 0.degree. and 25.degree. formed between the planar jet of high pressure air and a plane of conveyance of a glass sheet (16) along a conveyor (22) to deflect cooling air, supplied by blastheads (26,26') from entering the furnace (14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.