Apparatus and method for the continuous manufacture of foam board
US4495013A · kind A · utility
6Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1980 |
| Grant date | Jan 22, 1985 |
| Priority date | — |
| Expiry date | Apr 21, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1041
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A plastic foam-forming mixture (31), e.g. a polyurethane or polyisocyanurate foam mix, deposited from one or more static dispensers (19) is metered through two spaced opposed members 14 and 18 forming between them a metering gap. At least one of the members is deformable in a controlled manner such that the profile of the metering gap can be variously defined. Reduces "crowning" of foam boards while permitting foam boards of different thicknesses to be made without having to replace metering bars.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.