Abstract: Electrically powered retractable sunshades for the interior windshield of the automobile and additionally, electrically powered retractable billboards for advertising, announcements and the like.

Abstract: A modular hydroponic growth system is presented which supports a variety of plant growth with flexible conditions. The modularity is supported in part by quick-connect systems which allow liquids and air to be brought to and from subunits in an efficient manner. An advanced HVAC system allows for fresh air to be brought down one wall and stale air to be extracted from an opposing wall. The system allows for automation through the use of intelligent trolleys.

Abstract: The invention relates to a method for measuring the pressure and/or molar mass of a gas in a housing, the measure being carried out via an acoustic sensor, said acoustic sensor at least one transducer (5), an electric system (8) connected to the transducer (5) and a coupling layer (6) for coupling the transducer (5) to the housing (1), said method comprising the following steps: generating using the transducer (5) an excitation acoustic signal that vibrates the housing (1) and the gas (2) in a wide frequency band; detecting with the transducer (5) a response acoustic signal characteristic of the vibrations of the housing and the gas; analysing the response electric signals from the transducer (5) using the system (8); and deriving, essentially based on the gas (2) resonance frequencies, the speed of the acoustic waves in the gas, the molar mass of the gas and the pressure thereof. The invention also relates to an assembly for implementing the method.

Abstract: The invention relates to a method for measuring the pressure and/or molar mass of a gas in a housing, the measure being carried out via an acoustic sensor, said acoustic sensor at least one transducer (5), an electric system (8) connected to the transducer (5) and a coupling layer (6) for coupling the transducer (5) to the housing (1), said method comprising the following steps: generating using the transducer (5) an excitation acoustic signal that vibrates the housing (1) and the gas (2) in a wide frequency band; detecting with the transducer (5) a response acoustic signal characteristic of the vibrations of the housing and the gas; analysing the response electric signals from the transducer (5) using the system (8); and deriving, essentially based on the gas (2) resonance frequencies, the speed of the acoustic waves in the gas, the molar mass of the gas and the pressure thereof. The invention also relates to an assembly for implementing the method.

Abstract: A composite gasket (1) arranged to be frictionally fitted around a rigid tube end (2) is designed for insertion into a part (3) provided with an aperture (4) in the form of a cylindrical bore for coupling with the tube end. The gasket includes at least one ring (5) made of an elastomeric material and at least one collar (6) made of a rigid material in the shape of a cylindrical sleeve parallel to and coaxial with the ring axis. The collar is adjacent to the ring and has an outer surface (9) suitable for mild frictional engagement with the inner surface (10) of the coupling aperture, while the shape of the ring-engaging end surface of the collar matches that of the ring.

Abstract: A device and a method for making a device for forming a leak-proof connection between a rigid tube end and the tip of a flexible pipe by crimping a metal sleeve portion onto the tip. The rigid tube end includes an end portion comprising a shoulder with a larger diameter than the tube. The device comprises a rigid insert having a cylindrical bore between both ends thereof and including on one side a tubular portion force-fitted into the tip of the pipe opposite the crimped part of the metal sleeve portion, and on the other side a portion provided with an outer flange having a matching shape and engaging the internal portion of the shoulder.