The present invention discloses a rotary wheel airtightness detecting machine which comprises a body frame, an air cylinder, an upper seal, a lower seal, a water tank, an electric motor and a self-made air cylinder, etc. During use, the present invention can make the wheel be automatically centered between the upper seal and the lower seal, avoiding severe abrasion of equipment caused by inclination of the upper pressing plate for sealing upon biased positioning of the wheel.

A leak detecting device for water filled vessel such as a swimming pool. An annular resilient seal having a central opening contacts the surface of the vessel under water and creates a seal between the resilient seal and the vessel. A rigid housing open in its interior is coupled to the resilient seal and has an opening for an inlet to deliver fluid into the interior of the housing, or couple a flow meter thereto to measure the fluid flow, or deliver a dye into the housing and through the central opening of the resilient seal.

A leak detecting device for a fluid filled vessel including (1) a housing having a continuous perimeter edge sized to extend around an underwater surface; (2) a tube extending through an aperture of the housing, having a first end on an first side of the housing and a second end on a second side of the housing; (3) an anchoring attachment secured to the first end of the tube; (4) a resilient member secured to the perimeter edge of the housing and adapted to contact and form a seal between the housing and the underwater surface; and (5) an opening through an entirety of a wall of the housing, wherein the opening is accessible from the second side of the housing.

A leak detecting device for a fluid filled vessel including (1) a housing having a continuous perimeter edge sized to extend around an underwater surface; (2) a tube extending through an aperture of the housing, having a first end on an first side of the housing and a second end on a second side of the housing; (3) an anchoring attachment secured to the first end of the tube; (4) a resilient member secured to the perimeter edge of the housing and adapted to contact and form a seal between the housing and the underwater surface; and (5) an opening through an entirety of a wall of the housing, wherein the opening is accessible from the second side of the housing.

Disclosed herein are devices and related methods for measuring the permeation of a gas, including hydrogen, of a pipe or pipe liner. A sealed vessel for permeation testing is contained within the device, and immersed within a volume of liquid. Leakage of gas from the sealed vessel during testing produces bubbles, which are captured by the device. The amount of gas which leaks from the sealed vessel can thereby be readily and accurately determined.

Disclosed herein are devices and related methods for measuring the permeation of a gas, including hydrogen, of a pipe or pipe liner. A sealed vessel for permeation testing is contained within the device, and immersed within a volume of liquid. Leakage of gas from the sealed vessel during testing produces bubbles, which are captured by the device. The amount of gas which leaks from the sealed vessel can thereby be readily and accurately determined.

Apparatus and associated methods relate to a weight reduced ferrule (WRF) pharmaceutical container closure system that consumes less resources while having sufficient tensile strength to sealingly couple a closure to a canister. The pharmaceutical canister may, for example, include a lip extending into a cavity of the container from a distal end of the wall at a predetermined angle. The lip may, for example, define a sealing flat sealing surface extending around an entire perimeter of an aperture into the cavity. The WRF canister may, for example, include a validation method including a placement of a pharmaceutical container within a vacuum chamber including a sensor. The method includes a correlation of a pharmaceutical leakage calibration to the sensor. The method includes a validation determination as a function of the predetermined correlation between a detection of a leaked substance and a weight change in the pharmaceutical canister over a predetermined period.

Apparatus and associated methods relate to a weight reduced ferrule (WRF) pharmaceutical container closure system that consumes less resources while having sufficient tensile strength to sealingly couple a closure to a canister. The pharmaceutical canister may, for example, include a lip extending into a cavity of the container from a distal end of the wall at a predetermined angle. The lip may, for example, define a sealing flat sealing surface extending around an entire perimeter of an aperture into the cavity. The WRF canister may, for example, include a validation method including a placement of a pharmaceutical container within a vacuum chamber including a sensor. The method includes a correlation of a pharmaceutical leakage calibration to the sensor. The method includes a validation determination as a function of the predetermined correlation between a detection of a leaked substance and a weight change in the pharmaceutical canister over a predetermined period.