Method of injection molding structural foam folding slat structures
US3953560A · kind A · utility
9Cited by
9References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 28, 1974 |
| Grant date | Apr 27, 1976 |
| Priority date | — |
| Expiry date | Aug 28, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/83
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to structures such as folding (tambour) doors comprising longitudinal juxtaposed slats and comprises a method of making such structures by introducing a molten synthetic resinous mass containing a foaming agent into a mould, permitting foaming of the mass and compressing the mass with a ribbed mould plunger to a predetermined distance above the floor of the mould to constitute the hinges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.