Transducer apparatus responsive to external perturbation
US5473307A · kind A · utility
11Cited by
11References
8Claims
0Family size
Inventor
Key dates
| Filing date | Mar 17, 1995 |
| Grant date | Dec 5, 1995 |
| Priority date | — |
| Expiry date | Mar 17, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/806
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Transducer apparatus (10) responsive to external perturbations is disclosed having an electrically responsive transducer circuit (12) energized when a display member (18) and an elongate member (20) move from a gravity determined quiescent orientation (30A) therebetween to an external perturbation driven activate orientation (30B) therebetween. In various embodiments, the members are respectively responsive to air movement and acceleration. In one embodiment, the elongate member carries a first electrical contact (21) to abut a second electrical contact (22) carried by the display member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.