Water-safe hair dryer circuit
US4464582A · kind A · utility
49Cited by
4References
3Claims
0Family size
Inventors
Key dates
| Filing date | Oct 12, 1982 |
| Grant date | Aug 7, 1984 |
| Priority date | — |
| Expiry date | Oct 12, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H5/083
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An automatic power shut-off circuit for a wide variety of electrical appliances, such as hand-held hair dryers, razors, irons, hair curlers, etc. which pose a risk of electrocution when used around water. Thus, said circuit avoids the risk of dangerous shocks or even death, if the appliance should fall into a tub of water in which someone is bathing or if someone reaches or steps into water containing a plugged-in appliance, regardless of whether the switch of the appliance is on or off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.