Spray pump device
US8931716B2 · kind B2 · utility
0Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2008 |
| Grant date | Jan 13, 2015 |
| Priority date | — |
| Expiry date | Jul 17, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1052
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention refers to a spray pump device for spraying a liquid operated by a memory shape element. The spraying device is provided with a memory shape alloy wire with electrical resistivity, that is able to generate heat that increases its temperature so that due to memory shape property, the wire shrinks when current is applied. This shrinking permits the wire to activate a pump that atomizes a volatile substance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.