Apparatus for in situ environment sensitive sealing and/or product controlling
US5755570A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 1995 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | May 26, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S248/901
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A single furnace loading cycle technique and a ventable sintering box therefor are disclosed for the sintering of products, such as, ceramic substrates. The sintering box includes a closeable cover which is held open by collapsible or deformable or sensitive spacers in a first furnace temperature range. The sensitive spacers collapse or deform in a higher temperature range to seal closed the box and the substrates therein. Thus, volatile agents within the substrates are permitted to escape in the first temperature range but are prevented from escaping in the higher temperature range. Provision also is made using additional sensitive spacers for applying a weight upon the substrates when in the higher temperature range due to the collapse or deformation of the sensitive spacers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.