According to one embodiment a sealing plug is provided that includes an elastic body and a stem assembled coaxially with respect to one another. The elastic body is suitable for being expanded radially by pulling on the free end of the stem, which projects out of the elastic body, once it is inserted into the hole to be plugged, the elastic body applying a closing pressure against the hole. The sealing plug also comprises an empty space, arranged between the elastic body and the stem, which is communicated with the outside, such that the entrance of fluid into the elastic body is allowed so that the fluid applies pressure against the elastic body, thereby increasing the closing pressure applied by the elastic body against the hole.

The invention relates to a sealing device for cylindrical or conical orifices, which is composed of an elongate sealing body made from elastically deformable material, the following components being provided for the deformation of the sealing body: a tension bolt extending through the middle, free passage region of the sealing body, a pressure sleeve seated at the inner end of the tension bolt, a brace which is arranged at the outer end of the tension bolt and through which the tension bolt engages, and an actuation element which acts upon the outer end, projecting through the brace, of the tension bolt and which, when a tensile force is exerted upon the tension bolt, enlarges the sealing body and at the same time its outer circumference.

A fluid connector comprising a body having a through-bore, a plurality of radially inwardly facing surfaces comprising a first cylindrical surface having a first diameter, a frusto-conical surface adjacent the first cylindrical surface, and a second cylindrical surface adjacent the frusto-conical surface, the second cylindrical surface having a second diameter, wherein the frusto-conical surface is arranged between the first and second cylindrical surfaces, and a plurality of outwardly facing surfaces comprising a first cylindrical surface having a first diameter, and a second cylindrical surface adjacent the first cylindrical surface, the second cylindrical surface having a second diameter, and a deformable tab integrally connected to the body and extending axially from the body.

An inflatable system is described herein, including a body, a top, a bottom, an interior cavity, and a fluid inlet. In one aspect of the present teaching, the top and the bottom are on opposite sides of the body, approximately parallel to one another. The stem opening is located on the top of the body, wherein the stem opening allows the entry of fluid into the interior cavity of the body. The inflatable system is made of a material which allows for stretching when the inflatable system is inflated.

A bushing shield is used primarily but not exclusively in a commercial kitchen fire suppression system where pipes and EMT (electric metallic tube) carry detection line cables from a fusible link to a detection control. The bushing shield includes a guide bushing and a vapor barrier. The bushing shield minimizes grease vapors and foreign contaminant migration into a pipe or EMT of the commercial kitchen fire suppression system by forming a barrier, while simultaneously allowing the detection line cable to slide back and forth as intended by the fire suppression system manufacturer.

A water pump drain plug has a first end which is adapted for engagement to a water pump drain opening which communicates with the pressurized fluid within the water pump. The drain plug has an axial passage communicating therethrough capable of draining fluid from the water pump. The axial passage is plugged initially by a sealing member engaged therein which will release upon communication of fluid pressure against it at a predetermined release pressure.

A closure plug for a collector of a refrigerant circuit with a substantially cylindrical base body with a circumferential wall, wherein a first circumferential groove, in which an O-ring is arranged, is provided in the circumferential wall, wherein an elastomer ring is injection molded onto the circumferential wall at an axial distance from the first circumferential groove.

The invention relates to a sealing element for pipes, comprising a body of injection-mouldable plastic material, being made up of a central stem section that has at one end a circular head region acting as a grip area, including on a stem section in a downward direction from said head region, a first centring region with a general inverted frustoconical shape, a second circumferential outer contour region that is defined by at least two flexible flaps formed from a pair of diametrically opposed grooves and a third circumferential outer contour positioning region, the second region having a larger diameter than the first and third regions. Said sealing element includes at least two spaced extensions, which protrude in one same direction perpendicular to the central stem section, which have a length equal to or less than the diameter of the third positioning region.

A foreign material exclusion device that is adapted to seal an area of a construction, such as a tube or pipe, from foreign material or debris temporarily, wherein the device has a resilient body for holding the device within a particular construction. The device also includes a post extending through the body and a base connected to a first end of the post, the base including a flange for maintaining the body on the post. The device further includes a cap that is securely locked to a second end of the post to prevent the post being withdrawn from the cap. The device body is captured between the base and cap.

In one aspect, a bit for removing a plug from a branch conduit extending from a main pipe has a boring head at a distal end portion of a shaft configured to bore a pilot hole in the plug. A catch on the shaft is configured to pass through the pilot hole and then engage the plug after the pilot hole is bored for pushing the plug proximally. A burr proximal of the boring head is configured to remove a portion of the plug to separate a removable section from a durable section of the plug. In a method of restoring fluid communication between a main pipe and a branch conduit, the bit bores a pilot hole with the boring head, separates the removable section from the durable section with the burr, and then with the catch, withdraws the removable section only.