Vehicle-carried vibrator for producing seismic vibrations
US5396029A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 1993 |
| Grant date | Mar 7, 1995 |
| Priority date | — |
| Expiry date | Jul 6, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/09
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vibrator for producing seismic vibrations in the earth is carried by a vehicle. The vibrator has a base plate, a reaction mass and support plates and a lifting and lowering apparatus for raising and lowering the vibrator between a raised transportation position and a lowered operating position in which the base plate is pressed against the ground. The lifting and lowering apparatus includes piston and cylinder units each connected at one end to the vehicle chassis and at the other to a support plate. In one embodiment, the piston and cylinder units are attached to the vehicle by belt-type pivotable bearings to permit swiveling of the vibrator so that the base plate is tiltable to adapt to an uneven earth surface. In another embodiment, the piston and cylinder units are attached to the vibrator by spherical pendulum support bearings which also allow swiveling and tilting of the base plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.