Abstract: A machine for leak testing melt blown bottles includes a base plate and is provided with a vacuum. The machine includes a turntable assembly, which has an inner ring fastened to the base plate. The inner ring includes a channel about its circumference connected to the vacuum. An outer ring is formed of multiple parts, and fitted slidingly but sealingly around the inner ring. The outer ring has vacuum ports in communication with the channel of the inner ring. A turntable is rotatably connected to the outer ring and includes openings formed in its upper surface communicating with the vacuum ports. The outer ring may be held together by one or more O-rings. Vacuum fittings transfer the vacuum between the openings in the turntable and the vacuum ports of the outer ring.

Abstract: A method for testing a vacuum package with regard to seal-tightness, the vacuum package is placed with at least one surface section against at least one contact surface of a vacuum device. A vacuum is generated on a side of the contact surface opposite the vacuum package. A parameter indicative of an air flow through the contact surface in a flow direction away from the vacuum package is measured. The parameter is compared with at least one limit value. A first state is assigned to the vacuum package when the parameter surpasses the at least one limit value and a second state is assigned to the vacuum packaged when the parameter drops below the at least one limit value.

Abstract: The fluid tightness of containers having a first deformable section and a second deformable section spaced from the first deformable section is checked by changing the pressure applied to the first deformable section, preferably without causing fluid to flow through the first deformable section out of the container, and without changing the pressure applied to the second deformable section, thereby causing a deformation of the first deformable section and a change in pressure within the container; and thereafter monitoring a predetermined characteristic, preferably the position, of the second deformable section. This process can be used to check the fluid tightness of the containers with relatively fragile seals, for example, a foil lid of a food container without mechanical contact. Automated apparatus for carrying out this process is described.

Abstract: Apparatus for testing the integrity of an access chamber system during or after installation thereof, includes connection means (5; 4,6) for making substantially fluid-tight connection with any part of the chamber system, evacuation means for evacuating the air within the chamber system to provide a vacuum therein, and means for monitoring the level of vacuum over a predetermined period of time.