Device for operating devices for propellant cans
US5549226A · kind A · utility
32Cited by
9References
28Claims
0Family size
Inventor
Key dates
| Filing date | Apr 22, 1994 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Apr 22, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D83/18
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The outlet tubes of pressurized cans containing, for example, polyurethane which is to be foamed, very frequently become clogged. The unconsumed residue of the substance intended to be dispensed consequently becomes unusable. This is prevented in accordance with the invention by the use of tubes which are sufficiently stiff to enable them to be folded back over themselves to form a solvent-tight pinch fold, in which folded-back position the tube is held by a holding device. In addition, the free end of the tube can also be closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.