Abstract: For tightness testers with a plurality of in-line test stations (1) on a conveyor it is proposed to supply the tightness-relevant measurement signals from the chambers by detecting pressure change measurements via pressure sensors or electrical impedance measurements via electrodes that occur at the test stations over a time interval. The signals are supplied through multiplexers (5) to a central evaluation (9).

Abstract: Method and apparatus for leak testing a closed container with at least one flexible wall area, whether or not the container undergoing leakage testing is is filled with a product or not. A biasing member is moved towards and onto the flexible wall area in order to apply a predetermined force and the accompanying reaction forces are monitored over time. The instant invention of this leakage or integrity testing system constitutes an improvement over conventional prior art pressure monitoring sytems by instead monitoring a biasing force applied by such biasing member to such flexible wall area at different times over a testing cycle, whereby storage of two biasing force values at different times allows the later processing of a difference signal that is generated by using two measured force signals over time to thus result in both a leak indicative signal and an updated compensating zero offset signal.

Abstract: For leak testing closed containers (9) which are filled with a filling product containing at least one liquid component the container is introduced in a test cavity (1) which is evacuated at least down to vapour pressure of that liquid component. The pressure in the surrounding of the container (9) and thus within test cavity (1) is monitored. Monitoring is performed by a vacuum pressure sensor (7), whereas lowering pressure surrounding the container (9) is performed by a vacuum pump (5). Leakage is detected by monitoring a pressure change in the surrounding of the container which is due to evaporation of liquid emerging from a leak and being evaporated in the low pressure surrounding.

Abstract: For tightness testers with a plurality of in-line test stations (1) on a conveyor it is proposed to supply the tightness-relevant measurement signals from the chambers by detecting pressure change measurements via pressure sensors or electrical impedance measurements via electrodes that occur at the test stations over a time interval. The signals are supplied through multiplexers (5) to a central evaluation (9).

Abstract: For tightness testers with a plurality of in-line test stations (1) on a conveyor it is proposed to supply the tightness-relevant measurement signals from the chambers by detecting pressure change measurements via pressure sensors or electrical impedance measurements via electrodes that occur at the test stations over a time interval. The signals are supplied through multiplexers (5) to a central evaluation (9).

Abstract: A method and device for testing containers, the method calling for a different in pressure to be generated between the pressure inside the container and the pressure immediately surrounding the container, the behavior of one of these pressures permitting the gas tightness of the container to be assessed. A pressure value is stored and subsequently compared with one of the pressures, the stored pressure value being stored electronically and compared with at least one value of the output signal from a pressure sensor. The container is housed in an enclosure which is connected to a pressure or suction line, and a pressure-value storage unit, a comparator unit and a pressure sensor are associated with the pressure or suction line.

Abstract: For leak testing closed containers (9) which are filled with a filling product containing at least one liquid component the container is introduced in a test cavity (1) which is evacuated at least down to vapor pressure of that liquid component. The pressure in the surrounding of the container (9) and thus within test cavity (1) is monitored. Monitoring is performed by a vacuum pressure sensor (7), whereas lowering pressure surrounding the container (9) is performed by a vacuum pump (5). Leakage is detected by monitoring a pressure change in the surrounding of the container which is due to evaporation of liquid emerging from a leak and being evaporated in the low pressure surrounding.

Abstract: For leak testing closed containers (9) which are filled with a filling product containing at least one liquid component the container is introduced in a test cavity (1) which is evacuated at least down to vapor pressure of that liquid component. The pressure in the surrounding of the container (9) and thus within test cavity (1) is monitored. Monitoring is performed by a vacuum pressure sensor (7), whereas lowering pressure surrounding the container (9) is performed by a vacuum pump (5). Leakage is detected by monitoring a pressure change in the surrounding of the container which is due to evaporation of liquid emerging from a leak and being evaporated in the low pressure surrounding.

Abstract: For leak testing closed containers (9) which are filled with a filling product containing at least one liquid component the container is introduced in a test cavity (1) which is evacuated at least down to vapour pressure of that liquid component. The pressure in the surrounding of the container (9) and thus within test cavity (1) is monitored. Monitoring is performed by a vacuum pressure sensor (7), whereas lowering pressure surrounding the container (9) is performed by a vacuum pump (5). Leakage is detected by monitoring a pressure change in the surrounding of the container which is due to evaporation of liquid emerging from a leak and being evaporated in the low pressure surrounding.

Abstract: In order to obtain a reliable idea of the state of tightness for tightness testing of containers filled with liquids in which a pressure differential &Dgr;p is created between the interior of the container and its exterior, and also relative to the container wall in contact with the filling, an impedance measurement (7) is performed using measuring electrodes (3a, 3b) on the exterior of container (1).

Abstract: For tightness testers with a plurality of test stations (1) it is proposed to supply the tightness-relevant measurement signals from the chambers through multiplexers (5) to a central evaluation (9).

Abstract: A process for obtaining a consensus protein from a group of amino acid sequences of a defined protein family, proteins and polynucleotides so obtained, and compositions containing such proteins.

Abstract: For leak testing closed containers (9) which are filled with a filling product containing at least one liquid component the container is introduced in a test cavity (1) which is evacuated at least down to vapor pressure of that liquid component. The pressure in the surrounding of the container (9) and thus within test cavity (1) is monitored. Monitoring is performed by a vacuum pressure sensor (7), whereas lowering pressure surrounding the container (9) is performed by a vacuum pump (5).

Abstract: In order to obtain a reliable idea of the state of tightness for tightness testing of containers filled with liquids in which a pressure differential .DELTA.p is created between the interior of the container and its exterior, and also relative to the container wall in contact with the filling, an impedance measurement (7) is performed using measuring electrodes (3a, 3b) on the exterior of container (1).

Abstract: A method and device for testing containers, the method calling for a difference in pressure to be generated between the pressure inside the container and the pressure immediately surrounding the container, the behavior of one of these pressures permitting the gas tightness of the container to be assessed. A pressure value is stored and subsequently compared with one of the pressures, the stored pressure value being stored electronically and compared with at least one value of the output signal from a pressure sensor. The container is housed in an enclosure which is connected to a pressure or suction line, and a pressure-value storage unit, a comparator unit and a pressure sensor are associated with the pressure or suction line.

Abstract: For leak testing closed containers (9) which are filled with a filling product containing at least one liquid component the container is introduced in a test cavity (1) which is evacuated at least down to vapour pressure of that liquid component. The pressure in the surrounding of the container (9) and thus within test cavity (1) is monitored. Monitoring is performed by a vacuum pressure sensor (7), whereas lowering pressure surrounding the container (9) is performed by a vacuum pump (5). Leakage is detected by monitoring a pressure change in the surrounding of the container which is due to evaporation of liquid emerging from a leak and being evaporated in the low pressure surrounding.

Abstract: A method of checking the volume of containers is disclosed according to which a gas is fed into a volume which is correlated to the volume of the respective container and a signal which depends from the fed amount of gas is evaluated as signal indicative of the volume of the container. In order to substantially reduce the time of the measuring cycle at such a method a gas is fed to the volume which is correlated to the volume of the container at a controlled flow, i.e. the mass flow of the gas per unit of time is pre-set in a controlled manner such that it is possible to drastically reduce the time spans during which it is necessary to wait due to transient processes and a chamber which must be loaded in advance will become superfluous.

Abstract: In order to increase the throughput rate of conveyors with a conveyor star, it is proposed that groups consisting of several bulk items be fed essentially radially to said star (13) and that in the process the mutual positions of bulk items (1) be adapted to the curved mutual positions of transport recesses (23) on conveyor star (13) and/or to the intervals between them.

Abstract: In order to perform all-around inspection of vials in particular, it is proposed that said vials (1) be dynamically mounted in an air-cushion bearing (13) with bearing shells (21a, 21b), that they be rotated with the air of a suction cup (15) that is radially rubber-elastic, and that the vial walls be inspected with the air of a scanning device such as a line camera using working beam (29).

Abstract: A method of checking a volume of containers wherein a gas is fed to the volume which is correlated to a volume of the container at a controlled flow rate such that, for example, the mass flow of the gas per unit of time is preset in a controlled manner such that it is possible to reduce the time periods during which it is necessary to await transient processes.