| Patent Number |
Title Of Patent |
Date Issued |
| 6865518 |
Method and device for classifying vehicles |
March 8, 2005 |
| A device for obtaining vehicle electromagnetic signature data from electromagnetic signals includes means (16) for obtaining a digitized signal from measured electromagnetic signals. The device further includes means (20) for determining if a digitized signal is a vehicle electromagn |
| 6813840 |
Rectroreflecting metrology target marker device |
November 9, 2004 |
| The device comprises a target member (4) and a support (1) for supporting the target member. The support includes a receptacle head (12) for the target member, including a housing (15) open to the outside via an outwardly flared frustoconical seat (16). The target member includes a f |
| 6731114 |
Apparatus with capacitive electrodes for measuring subsurface electrical characteristics in the |
May 4, 2004 |
| The invention relates to apparatus with capacitive electrodes for electrical prospecting in a borehole, the apparatus comprising at least two injection electrodes (16, 18), at least two measurement electrodes (28, 34), and a current generator (22) for applying an electrical current b |
| 6655220 |
Method and device for in situ triaxial test |
December 2, 2003 |
| The device comprises a corer (1, 4) fitted with a flexible diaphragm (2) on its inside face, means (10) for driving the corer into the soil (11), means for breaking up the soil leaving the top orifice of the corer, means for applying axial forces on the diaphragm (2) and on the top face |
| 6040853 |
Process for detecting surface defects on a textured surface |
March 21, 2000 |
| A process for detecting defects in a textured suface, particularly on a highway. The process consists in displacing with respect to the surface a camera presenting an inclination and in processing by processing systems the successive images taken by the camera. A mathematical processing |
| 5070286 |
Manipulator for public works machines and machine equipped with such manipulator for road works |
December 3, 1991 |
| A manipulator arm is provided for public works machines comprising two beams of equal length and a pivoting cradle connected in series. The first or command beam is rotated about the forward end thereof on the chassis of a support unit, and the cradle is pivoted in response to rotation o |
| 4762419 |
Method of determining surface relief without making contact therewith |
August 9, 1988 |
| A method of rapidly determining surface relief of an object or a structure without making contact therewith based on quantifying the degree to which the image of an illuminated point or small spot on the surface is defocussed. Said point or spot is illuminated by a source of electrom |
| 4712423 |
Process and apparatus for measuring the dynamic loads applied to a highway by the road traffic |
December 15, 1987 |
| This invention relates to a process for measuring the dynamic load exerted on a highway by the axles of the vehicles circulating thereon. Two piezo-electric cables sensitive to the pressure of the axles, furnish, upon passage thereof, a weight information pulse and a speed information |
| 4674917 |
Method and device for placing a construction material in a liquid environment |
June 23, 1987 |
| A continuous linear element is used in the form of a fine fibrous trap, delivered in a continuous manner by an ejector (11) placed in a gaseous atmosphere established in an open-bottomed bell (8) immersed in the liquid medium with its open bottom close to the deposition site of the c |
