Detonator triggering device
US4648320A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1985 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Mar 26, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42C11/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A detonator triggering device which is located in the head of an underwater projectile, and wherein a pressure receiver which is positioned within an opening in the projectile head is exposed to a dynamic pressure or velocity head. A piezo-ceramic disc which is equipped with electrical contacts is rigidly supported on one side thereof in the head of the projectile, and with its other side contacts against a pressure transmitting member which is supported within the opening in the head. As a result, the dynamic pressure will act against the piezo-ceramic disc. Every change in the dynamic pressure consequently provides for a corresponding change in the charge or change in the voltage of the piezo-ceramic disc. This permits itself to be processed in an electronic evaluating or gating circuit, such that the applicable voltage change is employed as the actuating criteria.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.