Dispenser for two-component spray polyurethane form that are free of gaseous blowing agents
US10035155B2 · kind B2 · utility
2Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2014 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | Sep 15, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B1/3026
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dispenser comprises a housing defining at least three feed channels, a spool valve with a spool defining at least three flow passages, a deformable sealing plug in at least two of the feed channels and in sealing orientation with both the housing and the spool, and a nipple in at least the two feed channels of the housing comprising sealing plugs; wherein the spool can reversibly rotate between an open orientation and a closed orientation can dispense two-component form formulations that are free of gaseous blowing agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.