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.

A system is described for inspecting a container having a top surface using light reflections and positional data. The system comprises a radiation source arranged such that the light beam projects radiation onto the top surface, wherein the radiation radiates along the outer edge of the container; a sensor, wherein the radiation is collected by the sensor reflected from the container using positional data, wherein the positional data is used to create a reference plane of the top of the top surface; and a processor operatively connected to the sensor, the processor integrates the positional data to detect defects in the container and creates a reference plane of a top surface of the container, wherein sensor captures the positional data of the container as the container moves on the conveyor; and the positional data is integrated using software to produce a 3D topographical map of the container.

An assembly (10) to engage seemingly closed bags (11) that contain a product. The assembly (10) includes a conveyor (14) that has a length (16) that is moved in a conveying direction (17). A compression device (24) is adjustable in respective distance from the length (17) by a “parallelogram” arrangement. The compression device (24) engages the bags (11) and compresses the bag (11) against the length (12), with sensors (33 and 34) providing a signal indicative of the depth of the bags (11), and therefore a signal indicative of bags (11).

An assembly (10) to engage seemingly closed bags (11) that contain a product. The assembly (10) includes a conveyor (14) that has a length (16) that is moved in a conveying direction (17). A compression device (24) is adjustable in respective distance from the length (17) by a “parallelogram” arrangement. The compression device (24) engages the bags (11) and compresses the bag (11) against the length (12), with sensors (33 and 34) providing a signal indicative of the depth of the bags (11), and therefore a signal indicative of bags (11).

Embodiments of the present disclosure belong to the field of valve sealing, and in particular, relate to a test device for simulating sealing performance of a one-way valve. A box is provided with a gas inlet pipe and a gas outlet pipe, the gas inlet pipe is communicated with a gas source, a detection device is communicated with the gas outlet pipe, the detection device is used to detect detection gas input into the box by the gas source, a sleeve is connected to the gas inlet pipe, one end of the sleeve is communicated with the gas source, the other end of the sleeve has a gas outlet, one end of a fitting piece is used to block the gas outlet, and the other end of the fitting piece is connected to a driving member, which is used to drive the fitting piece to move and rotate.

Embodiments of the present disclosure belong to the field of valve sealing, and in particular, relate to a test device for simulating sealing performance of a one-way valve. A box is provided with a gas inlet pipe and a gas outlet pipe, the gas inlet pipe is communicated with a gas source, a detection device is communicated with the gas outlet pipe, the detection device is used to detect detection gas input into the box by the gas source, a sleeve is connected to the gas inlet pipe, one end of the sleeve is communicated with the gas source, the other end of the sleeve has a gas outlet, one end of a fitting piece is used to block the gas outlet, and the other end of the fitting piece is connected to a driving member, which is used to drive the fitting piece to move and rotate.

Methods of detecting pipeline weakening are described herein. The methods include creating a pressure wave in a fluid flowing in a pipeline using an input transducer located at a first position along the pipeline; measuring the pressure wave using an output transducer positioned at a second position along the pipeline that is spaced from the first position, and generating an output signal based on the pressure wave; analyzing the output signal to determine a stiffness of a sidewall of the pipeline positioned between the input transducer and output transducer; and determining if the sidewall includes a defect based on the stiffness of the sidewall, including analyzing a frequency response of the output signal to detect the defect.

Methods of detecting pipeline weakening are described herein. The methods include creating a pressure wave in a fluid flowing in a pipeline using an input transducer located at a first position along the pipeline; measuring the pressure wave using an output transducer positioned at a second position along the pipeline that is spaced from the first position, and generating an output signal based on the pressure wave; analyzing the output signal to determine a stiffness of a sidewall of the pipeline positioned between the input transducer and output transducer; and determining if the sidewall includes a defect based on the stiffness of the sidewall, including analyzing a frequency response of the output signal to detect the defect.

A device and a method for detecting leaks of closed containers with an inspection apparatus configured to determine the curvature of the container closure of the closed containers, as well as an evaluation apparatus by means of which the curvature of the closure is compared with a predefined value. A pressure generating apparatus is used to press each container closure flat prior to inspection. The pressure-generating apparatus comprises an actuator with which pressure is applied locally to each container closure from the outside.

A device and a method for detecting leaks of closed containers with an inspection apparatus configured to determine the curvature of the container closure of the closed containers, as well as an evaluation apparatus by means of which the curvature of the closure is compared with a predefined value. A pressure generating apparatus is used to press each container closure flat prior to inspection. The pressure-generating apparatus comprises an actuator with which pressure is applied locally to each container closure from the outside.