Pressure resistant square panel
US4279966A · kind A · utility
19Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1979 |
| Grant date | Jul 21, 1981 |
| Priority date | — |
| Expiry date | Apr 6, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12417
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A pressure resistant square panel made of steel or cast iron comprises flanges extending along peripheral edges of a pressure receiving surface of the panel, a bottom portion along bottom edges of the flanges of the pressure receiving surface, flat portions inside the bottom portion and higher therethan, and reinforcing ribs substantially X-shaped as viewed in a plan view and extending along diagonals of the panel and progressively increasing their heights from corners to a center of the panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.