Water injection device for a steam iron
US4669207A · kind A · utility
4Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1985 |
| Grant date | Jun 2, 1987 |
| Priority date | — |
| Expiry date | Nov 20, 2005 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F75/18
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A water injection device for automatic de-scaling of steam irons comprises an axially displaceable injection plunger (21) which controls the communication between a reservoir (4) and a vaporization chamber (3) according to whether the flexible annular lip (17) of a nozzle (8) surrounds the plunger either in a smooth region (28) or in a laterally recessed region (26). A flexible skirt (19) surrounds the flow passage downstream of the lip (17). The injection plunger (21) terminates in an annular de-scaling boss (31) which is surrounded by the skirt (19) when the plunger is in the closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.