Land seismic gas detonator
US4078632A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 1976 |
| Grant date | Mar 14, 1978 |
| Priority date | — |
| Expiry date | Nov 8, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60V3/025
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The gas detonator is especially adapted for shallow, seismographic, land prospecting. It comprises a circular bottom plate having an inwardly-directed sloping side wall. An annular top plate is mounted over the bottom plate. Means, including a plurality of springs, interconnect and resiliently maintain the plates in touching relation with each other. A housing is mounted over the top plate and forms therewith a detonation chamber. The bore of the top plate serves as the vent port for the detonation chamber. The vent port is normally closed by the bottom plate. Following the detonation of a combustible gas mixture in the chamber, the plates momentarily separate and form therebetween a cylindrical cavity which opens the vent port. A container upwardly extends from and forms with the bottom plate a reservoir which, in use, is filled with water. The spent gases of combustion escape into this water, thereby muffling the sound of the detonator. The water also adds mass to the bottom plate, thereby improving the coupling thereof with the underlying ground. The bottom plate's sloping side wall improves the coupling efficiency between the bottom plate and an irregular underlying earth patte…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.