Thermomechanical candle snuffer
US4138211A · kind A · utility
17Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1977 |
| Grant date | Feb 6, 1979 |
| Priority date | — |
| Expiry date | Nov 4, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23Q25/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Thermomechanical candle snuffer utilizes staff of material such as 55-Nitinol which, when heated by candle flame, elevates slideably engaged cap which falls over candle extinguishing it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.