The present invention is related to a water-resistant shoe and a method of making the water-resistant shoe. In most embodiments the shoe comprises an outsole, an insole, an upper, and a bootie product comprised of a bootie, a bootie liner, a strobel and a gasket. In many embodiments water-resistant materials such as tape or glue are used to cover all seams and joints. In some embodiments the different pieces are tested for water-resistance before combining and in others the final shoe is tested for water-resistance. The present shoe and method provide a comfortable yet water-resistant shoe.

A sealing assembly for sealing an electrical component having an opening includes a cover coupled with the electrical component and a plug assembly fixed to the cover. The cover has a through-hole for injecting air during leakage tests of the electrical component and a plurality of engaging elements. The plug assembly has a single wire seal sealing the through-hole and a plurality of locking elements reversibly engaging the engaging elements. The cover seals the opening of the electrical component in an air-tight manner when the plug assembly is inserted into the through-hole.

The present invention provides a gas leakage sensing device comprising a gas conduit, a liquid storage tank and a bubble sensing component. The gas conduit guides leaking gas from industrial equipment into a liquid in the liquid storage tank through an exhaust port and generates bubbles. A monitoring part with a bubble sensing component is formed on the tank wall of the liquid storage tank, the height of the monitoring part from the liquid surface is less than the height of the exhaust port from the liquid surface. By sensing the size, amount of generated bubbles, and floating frequency of the bubbles generated in the liquid, the flow rate and volume of the leaking gas are obtained to improve the accuracy of sensing the leaking gas.

The present invention provides a gas leakage sensing device comprising a gas conduit, a liquid storage tank and a bubble sensing component. The gas conduit guides leaking gas from industrial equipment into a liquid in the liquid storage tank through an exhaust port and generates bubbles. A monitoring part with a bubble sensing component is formed on the tank wall of the liquid storage tank, the height of the monitoring part from the liquid surface is less than the height of the exhaust port from the liquid surface. By sensing the size, amount of generated bubbles, and floating frequency of the bubbles generated in the liquid, the flow rate and volume of the leaking gas are obtained to improve the accuracy of sensing the leaking gas.

The present invention provides a gas leakage sensing device comprising a gas conduit, a liquid storage tank and a bubble sensing component. The gas conduit guides leaking gas from industrial equipment into a liquid in the liquid storage tank through an exhaust port and generates bubbles. A monitoring part with a bubble sensing component is formed on the tank wall of the liquid storage tank, the height of the monitoring part from the liquid surface is less than the height of the exhaust port from the liquid surface. By sensing the size, amount of generated bubbles, and floating frequency of the bubbles generated in the liquid, the flow rate and volume of the leaking gas are obtained to improve the accuracy of sensing the leaking gas.

The present invention provides a gas leakage sensing device comprising a gas conduit, a liquid storage tank and a bubble sensing component. The gas conduit guides leaking gas from industrial equipment into a liquid in the liquid storage tank through an exhaust port and generates bubbles. A monitoring part with a bubble sensing component is formed on the tank wall of the liquid storage tank, the height of the monitoring part from the liquid surface is less than the height of the exhaust port from the liquid surface. By sensing the size, amount of generated bubbles, and floating frequency of the bubbles generated in the liquid, the flow rate and volume of the leaking gas are obtained to improve the accuracy of sensing the leaking gas.

An apparatus and method for testing the integrity of packaging using vacuum. The apparatus consists of tank with an interior chamber, a lid operable to allow placement of a package into the interior chamber, a hold down plate attached to the lid, a measuring device configured to measure the size of the package, and a vacuum device configured to apply vacuum to the interior chamber of the vacuum chamber. During testing the package is submerged in a liquid, then placed under vacuum until predetermined size is reached. Then the package is inspected for indications of leakage.

An apparatus and method for testing the integrity of packaging using vacuum. The apparatus consists of tank with an interior chamber, a lid operable to allow placement of a package into the interior chamber, a hold down plate attached to the lid, a measuring device configured to measure the size of the package, and a vacuum device configured to apply vacuum to the interior chamber of the vacuum chamber. During testing the package is submerged in a liquid, then placed under vacuum until predetermined size is reached. Then the package is inspected for indications of leakage.

A leak detecting device for a fluid filled vessel including a housing, a solid shaft, an anchoring attachment, and a resilient member. The housing has a continuous perimeter edge sized to extend around an underwater surface, forms a hollow interior, and includes a first aperture formed through a wall of the housing and a second aperture formed through the wall of the housing. The solid shaft extends through the first aperture of the housing and has a first end on an interior side of the housing and a second end on an exterior side of the housing. The anchoring attachment is secured to the first end of the solid shaft. The resilient member is secured to the perimeter edge of the housing.

A leak detecting device for a fluid filled vessel including a housing, tube, anchoring attachment, resilient member, and opening. The housing has a continuous perimeter edge sized to extend around an underwater surface, the housing forming a hollow interior. The tube extends through an aperture into the hollow interior of the housing, having a first end on an interior side of the housing and a second end on an exterior side of the housing. The anchoring attachment is secured to the first end of the tube. The resilient member is secured to the perimeter edge of the housing and adapted to contact and form a seal between the housing and the underwater surface. The opening is formed through an entirety of a wall of the housing, wherein the opening is accessible from an exterior of the housing.