Abstract:
Apparatus for grinding biological samples contained in tubes (12) carried by a plate (10) which is oscillated, wherein the tube (12) oscillation zone is surrounded by cooling means (30) for keeping the samples in the tubes (12) at a desired low temperature, for example of 4°C, during the grinding.
Abstract:
The inventive device for fast vibration of tubes (24) containing samples, for example biological samples comprises a platform (22) for supporting the tubes and concentric bearing blocks (28, 30) for arranging the platform in a crown (26) which is elastically suspended on a frame (10). Said bearing blocks comprise two rolling bearings arranged one inside the other. Said invention makes it possible to exposed the samples containing tubes to an alternate curvilinear and high frequency motion.
Abstract:
The invention relates to a device for the remote optical detection of a gas, that comprises a detection housing (30) connected to an electronic supply housing and to a man-machine interface, the detection housing including an infrared lens (46) for forming an image on a detector (50) with a micro-bolometres non-cooled matrix, a camera (64) of the CCD or CMOS type for observing in the visible spectrum the area observed, a set of electronic means (68) for driving the detector and for the acquisition and digitalisation of the infrared signals, and a processor (82) for processing the signals for detecting a gas in the area observed and for determining the concentration thereof.
Abstract:
The invention relates to a method for the rapid analysis of a microbial population of a given environment, such as a microbial population sampled from the air. In particular, the inventive method comprises the use of DNA chips and a radioactive or chimiluminescent detection method.
Abstract:
Device for collecting particles and microorganisms present in the ambient air, comprising air sucking means (14) in a low capacity enclosure (10) wherein particles and microorganisms are centrifugally separated from the sucked air, wherein said device is portable, self-supporting and one-hand handleable, for example with a handle (16) associated with the air sucking means.
Abstract:
Device for collecting and separating particles and microorganisms present in the ambient air, comprising intake means (36, 38) for taking air into a removable centrifugation chamber (10) forming a container for transporting a liquid specimen containing the collected particles and microorganisms, this chamber being selected from a set of chambers having different diameters corresponding to intake rates of between about 100 and 2000 litres per minute, these rates being achieved with the same intake means.
Abstract:
The invention relates to an installation for pumping liquid at the bottom of a well, particularly of an oil well, comprising a linear electric motor (24) and a flap-valve pump (26) whose piston (40) is driven in a reciprocating motion by the moving element of the electric motor, this moving element and the piston (40) of the pump being guided in a cylindrical sleeve (36) axially extending inside the stator of the electric motor and of the pump body, this sleeve and the components of the motor and of the pump it contains can be raised to the surface by means of a hoisting cable attached to the upper end of the moving element of the motor (24).
Abstract:
The invention relates to an installation for pumping liquid at the bottom of a well, particularly of an oil well, comprising a linear electric motor (24) and a flap-valve pump (26) whose piston (40) is driven in a reciprocating motion by the moving element of the electric motor, this moving element and the piston (40) of the pump being guided in a cylindrical sleeve (36) axially extending inside the stator of the electric motor and of the pump body, this sleeve and the components of the motor and of the pump it contains can be raised to the surface by means of a hoisting cable attached to the upper end of the moving element of the motor (24).
Abstract:
The invention concerns an immunoassay apparatus, comprising coaxial rotating trays (14) supporting reaction dishes (18) and (16) supporting tubes (24) containing samples to be analysed, means for driving said trays in rotation about a common axis, and means (28) supporting reagents, extending in an arc around said rotating trays.