Composite piezoelectric tuning fork with eccentricly located electrodes
US4302694A · kind A · utility
34Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1979 |
| Grant date | Nov 24, 1981 |
| Priority date | — |
| Expiry date | Sep 5, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/42
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A piezoelectric tuning fork device comprises a plate-like tuning vibrator having a pair of prongs and a base with a slot defined between the prongs. The tuning vibrator has at least one electrode layer deposited on and overlying a piezoelectric layer formed on one of the opposed major surfaces of the tuning vibrator. The electrode layer is generally U-shaped and has a pair of opposed leg portions each so positioned as to have its longitudinal axis located to one side of the imaginary corresponding prong.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.