Thomson-csf

Compagnie Generale De Radiologie

Edmond Chambron

Pierre Lajus

Alain Elcrin

A telescopic cylindrical tube column in which a first tube is fitted into a second tube. Rollers integral with the first tube engage opposite edges of each of a plurality of openings parallel to the longitudinal axis of the column to interlock the tubes. The rollers are fixed to the first tube at points different from their axis of rotation to allow adjustment of the position thereof.

Telescopic cylindrical tube column

A patient-bearing panel is displaceable in a longitudinal direction (y--y) under conditions which enable the panel to be made entirely of material which is a poor absorber of X-rays and which is also uniform in its absorption. The panel has an end overhanging a first roller by an amount which varies as a function of its longitudinal displacement.

Linearly displaceable examination table

A servocontrol permits the alignment of a slave mechanical component with a master mechanical component. A probe measures its distance from the master component and another probe measures it distance from the slave component. A circuit processes a square wave pulse whose duration is proportional to the distance separating the master component from the slave component. A motor is supplied with power until the pulse ends.

Servocontrol by ultrasonics of the relative position of two mechanical

A syringe for injecting fluid into a body or for removing body fluids is coupled to move together with the piston of a double acting hydraulic actuator having two chambers. For the purpose of aspirating fluid into the syringe, the second chamber of the actuator has within it a liquifiable gas which exerts a constant pressure on the piston. The expulsion of fluid from the syringe is accomplished by the admission of a hydraulic medium under pressure to the first chamber of the actuator. The apparatus also includes a calibrating mechanism which preselects a quantity of hydraulic medium proportional to the quantity of fluid to be expelled from the syringe.

Method and apparatus for controlling the movement of fluid to and from a

An X-ray film-handling arrangement for taking X-ray photographs in which the length of the format is variable, including a movable leaded mask which may cover part of the exposure field and a device for feeding and transporting the film comprising conveyor belts and a so-called indexing belt provided with a marker, which reproduces the movement of the belts. When this marker passes in front of detectors attached to the end of the mask, it causes these to generate control signals which are fed respectively to a clutch and a brake, so as to stop the movement of belts when the film reaches the front end of mask.

Growing community of inventors

Paris, France

Edmond Chambron