Metal detector with first and second nested rectangular coils
US4053828A · kind A · utility
13Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 1976 |
| Grant date | Oct 11, 1977 |
| Priority date | — |
| Expiry date | May 3, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4902
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An orthogonal coil metal detector with nesting rectangular coils, each comprising a plurality of turns encapsulated in an insulating material and having a layer of electrical resistive material thereon. An encapsulating material in the gap between the coils bonding the coils together. A fixture for supporting the coils in spaced relations and providing for translation and rotation of one coil relative to the other for adjusting the coil position to a minimum coupling condition, and for holding the coils in the adjusted condition during curing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.