摘要:
A process for the long-term preservation of DNA molecules and a packaging for practicing the same provides for extraction, purification and dehumidification of the DNA by any suitable technique carrying out an encapsulation in a sealed corrosion-proof metallic capsule of the DNA molecule.
摘要:
A highly-porous silica gel charged with 10% by weight of anethole and 20% by weight of deactivating agent is used in the tip of a cigarette in order to aromatize the smoke drawn from the cigarette in a simple way with anethole even after prolonged storage of the cigarette.
摘要:
A waste recuperating electrical apparatus (13) composed of a suction device that includes in particular an electric motor (20) and a suction turbine (22), a suction aperture (16a), and a tubular filter (1) forming a waste receptacle. The apparatus (13) further has a housing (14) arranged between the suction aperture (16a) and the suction turbine (22) with both of which it communicates on either side through ducts (16b) and the tubular filter (1) is arranged in the housing (14) such that one of its end orifices (6) is sealed and the opposite end orifice (4) is directly connected to the suction nozzle duct (16b). The filter housing has elements maintaining (3) the filter spaced from the filter (1) housing (14) inner wall so as to increase the volume around the duct enclosing the filter periphery in the suction turbine direction.
摘要:
A cook hob (1) possesses a device for the support of controls (10) which are mounted pivotably on a housing (7) equipped with a ventilation circuit. The device comprises a body (12) having a channel (13), one end of which forms the outlet port of the ventilation circuit. The body (12) can pivot between a position in which the controls (10) are accessible and the outlet port is open, and a position in which the controls are not accessible and the outlet port is closed.
摘要:
A vacuum cleaner has a motor housing 1 and a suction unit 2 which comprises a suction nozzle 3 and a suction hose for communicating the nozzle with the housing. The suction unit has a hook-up device 4 which may be hooked on to a mounting 5 of the housing to operate a switch 6 provided in the housing and thereby switch off the vacuum cleaner.