A case airtightness evaluation method evaluates airtightness of a case mounted at a vehicle. A pressure measuring step of the evaluation method includes pressurizing or depressurizing air in the case, allowing pressure in the case to stabilize, and then measuring a pressure change in the case. During the measurement of the pressure change, a deformation amount acquiring step acquires a deformation amount of a specific location of the case. Based on the acquired deformation amount, a correcting step corrects the measured pressure change. Based on the corrected pressure change, an evaluating step evaluates airtightness of the case.

A case airtightness evaluation method evaluates airtightness of a case mounted at a vehicle. A pressure measuring step of the evaluation method includes pressurizing or depressurizing air in the case, allowing pressure in the case to stabilize, and then measuring a pressure change in the case. During the measurement of the pressure change, a deformation amount acquiring step acquires a deformation amount of a specific location of the case. Based on the acquired deformation amount, a correcting step corrects the measured pressure change. Based on the corrected pressure change, an evaluating step evaluates airtightness of the case.

A facemask configured to be used by multiple sized/shaped heads can include a primary, a secondary and a tertiary seal. In some embodiments, the primary seal is contact with the nose and cheek regions; the secondary seal is in contact with the chin region; and the tertiary seal is in contact with the cheek and chin regions. In some embodiments, the tertiary seal extends inwardly and outwardly when applied to the face. In some embodiments, the mask includes test scissors.

An apparatus for checking the tightness of a closure of a container, in particular a pharmaceutical or cosmetic container, the closure comprising a closure cap for closing the container and an elastic sealing member arranged between the closure cap and a mouth edge of the container, comprising: a turntable movable relatively against the closure of the container for exerting a compressive force on the elastic sealing member to effect compression of the elastic sealing member, wherein the turntable is connected to an axially displaceable drive shaft of a drive unit, and wherein the turntable is configured to be set in rotation with the container coupled thereto; a crimping device for crimping the closure cap; a control unit for controlling the drive unit; and a position encoder for providing a value representing a stroke position of the turntable.

An apparatus for checking the tightness of a closure of a container, in particular a pharmaceutical or cosmetic container, the closure comprising a closure cap for closing the container and an elastic sealing member arranged between the closure cap and a mouth edge of the container, comprising: a turntable movable relatively against the closure of the container for exerting a compressive force on the elastic sealing member to effect compression of the elastic sealing member, wherein the turntable is connected to an axially displaceable drive shaft of a drive unit, and wherein the turntable is configured to be set in rotation with the container coupled thereto; a crimping device for crimping the closure cap; a control unit for controlling the drive unit; and a position encoder for providing a value representing a stroke position of the turntable.

A method is provided for detecting leaks in a disposable medical fluid cassette that includes a base and a flexible membrane attached to the base in such a way that the base and the flexible membrane cooperate to at least partially form a fluid passageway. The method includes applying a first force to the flexible membrane, measuring a first physical property of a system that includes the medical fluid cassette a medical fluid pumping machine, removing the first force from the flexible membrane, applying a second force to the flexible membrane, measuring a second physical property of the system, and determining whether the medical fluid cassette leaks based on a comparison of the first physical property and the second physical property.

A method is provided for detecting leaks in a disposable medical fluid cassette that includes a base and a flexible membrane attached to the base in such a way that the base and the flexible membrane cooperate to at least partially form a fluid passageway. The method includes applying a first force to the flexible membrane, measuring a first physical property of a system that includes the medical fluid cassette a medical fluid pumping machine, removing the first force from the flexible membrane, applying a second force to the flexible membrane, measuring a second physical property of the system, and determining whether the medical fluid cassette leaks based on a comparison of the first physical property and the second physical property.

The invention relates to a device and a method for checking the leak tightness of deformable containers. The device comprises a probe that can be brought in contact with a container in a probing motion, a drive unit for the probe, and a measuring apparatus coupled to the drive unit and/or the probe for determining the container leak tightness by evaluating the probing motion. For said device, according to this disclosure, a sensor element adapted to detect motion of the sensor element is arranged on the probe, and that the measuring apparatus coupled to the sensor element is designed to record a time curve of the probing motion.

The invention relates to a device and a method for checking the leak tightness of deformable containers. The device comprises a probe that can be brought in contact with a container in a probing motion, a drive unit for the probe, and a measuring apparatus coupled to the drive unit and/or the probe for determining the container leak tightness by evaluating the probing motion. For said device, according to this disclosure, a sensor element adapted to detect motion of the sensor element is arranged on the probe, and that the measuring apparatus coupled to the sensor element is designed to record a time curve of the probing motion.

A flexible lid seal detector incorporates a compression body having a cavity including a sensor. The detector has a distal end comprising a plurality of concentric compression rings surrounding the cavity. An outer-most ring is defined by outer and inner shaping rims. The distal end includes a recessed lid deflection volume defined by the inner rim and a distal surface of the compression body. The deflection volume may receive a portion of a flexible lid when at least one of the rings applies a compressive force thereto, thereby deforming the lid into the deflection volume. The deflection volume may include a second compression ring and its respective inner and outer shaping rims. A seal detector system may include the detector with a controller configured to receive data from the sensor for a predetermined period of time while the detector applies the compressive force to the lid.