A conduit coupling adapter for securing attaching a conduit to an enclosure is disclosed. The conduit coupling adapter generally includes a first end for receiving a conduit and attaching to it via an adhesive, and a second end coupled to the second end comprises threads and is configured for attaching to an enclosure using a locknut.

A structure whereby a piping nozzle can be simply attached to a tank body is disclosed. A cylinder of a nozzle body is inserted through the interior and exterior of the tank body via a nozzle body insertion hole in the tank body. A skirt is provided on an end portion of the cylinder, and expands annularly from the end portion of the cylinder in the interior of the tank body. A sealing member is interposed between an inner surface of the tank body and the skirt around the nozzle body insertion hole. A spacer member is disposed on an outer surface of the tank body around the cylinder. By tightening a nut on a male screw of the cylinder of the nozzle body, a portion of the tank body around the nozzle body insertion hole is sandwiched by the skirt of the nozzle body and the spacer member.

A pipe connection and a method for sealingly connecting pipes which, in their opposite end portions, are provided with removable rings arranged in grooves provided in the peripheries of the pipes, the pipe connection being provided with a first nut, which is provided with an internally threaded portion and is arranged to encircle the end portion of the first pipe and has a shoulder portion which may abut in an axially supporting manner against said ring, and a second nut, which is provided with an externally threaded portion and is arranged to encircle the end portion of the second pipe and abut with a shoulder portion in an axially supporting manner against said ring, and the nuts are in threaded engagement with each other and are arranged to press radial pipe-end faces of the pipes against an axially supporting portion of a seal and pipe carrier.

A pipe connection and a method for sealingly connecting pipes which, in their opposite end portions, are provided with removable rings arranged in grooves provided in the peripheries of the pipes, the pipe connection being provided with a first nut, which is provided with an internally threaded portion and is arranged to encircle the end portion of the first pipe and has a shoulder portion which may abut in an axially supporting manner against said ring, and a second nut, which is provided with an externally threaded portion and is arranged to encircle the end portion of the second pipe and abut with a shoulder portion in an axially supporting manner against said ring, and the nuts are in threaded engagement with each other and are arranged to press radial pipe-end faces of the pipes against an axially supporting portion of a seal and pipe carrier.

A plumbing attachment system according to a first embodiment includes a pipe, a flexible spud, and a gasket. The flexible spud may be sealingly attached to a hole in a tank to provide a liquid proof seal therebetween. The flexible spud includes a flexible ring portion, which enables the system to be inserted into and to be retained within the hole of the tank. A plumbing attachment system according to a second embodiment comprises a new pipe, drain gasket, collar, and compression gasket, where the system is configured for attachment to an existing pipe construct. In a third embodiment, the system includes a pipe-guiding connector, sized and dimensioned to mate with a pipe and to provide a guiding track (shelf) for positioning the pipe relative to a hole in a tank for ease of installation. Methods of installing the attachment systems in plumbing applications are also disclosed.

A plumbing attachment system according to a first embodiment includes a pipe, a flexible spud, and a gasket. The flexible spud may be sealingly attached to a hole in a tank to provide a liquid proof seal therebetween. The flexible spud includes a flexible ring portion, which enables the system to be inserted into and to be retained within the hole of the tank. A plumbing attachment system according to a second embodiment comprises a new pipe, drain gasket, collar, and compression gasket, where the system is configured for attachment to an existing pipe construct. In a third embodiment, the system includes a pipe-guiding connector, sized and dimensioned to mate with a pipe and to provide a guiding track (shelf) for positioning the pipe relative to a hole in a tank for ease of installation. Methods of installing the attachment systems in plumbing applications are also disclosed.

Disclosed is a mechanical clamp useful for providing access to the interior of an enclosure such as a pressure vessel. The mechanical clamp is an apparatus having a cap having a convex side and a concave side wherein the concave side is adapted for positioning adjacent the wall of the enclosure. The apparatus further includes at least one rod attached securely in the cap for passing through at least one hole in the wall of the enclosure wherein each rod has a first end attached securely in the cap and a second end and each rod is threaded along a portion of the rod including the second end. The apparatus further includes a nut for attaching to the second end of each rod for securing the cap in place adjacent to the wall of the enclosure. An opening is provided in the cap so that a probe can be passed there through. Methods for applying the mechanical clamp are also disclosed.

Disclosed is a mechanical clamp useful for providing access to the interior of an enclosure such as a pressure vessel. The mechanical clamp is an apparatus having a cap having a convex side and a concave side wherein the concave side is adapted for positioning adjacent the wall of the enclosure. The apparatus further includes at least one rod attached securely in the cap for passing through at least one hole in the wall of the enclosure wherein each rod has a first end attached securely in the cap and a second end and each rod is threaded along a portion of the rod including the second end. The apparatus further includes a nut for attaching to the second end of each rod for securing the cap in place adjacent to the wall of the enclosure. An opening is provided in the cap so that a probe can be passed there through. Methods for applying the mechanical clamp are also disclosed.

Systems and methods for installing and sealing a fuel pump in a fuel tank are disclosed. In one embodiment, a system for installing and sealing a fuel pump in a fuel tank may include (1) a fuel tank with an opening in a surface thereof; and (2) a fuel pump hanger assembly, the fuel pump hanger assembly comprising; (a) a plurality of assembly screws; (b) a plurality of clamping lugs configured to thread onto the plurality of assembly screws and engage an inside surface of the fuel tank; (c) a top plate further comprising; (i) a bearing surface configured to engage an external fuel tank surface; (ii) a plurality of through holes proximate the perimeter of the top plate and perpendicular to the bearing surface; (iii) a plurality of bosses, each of the plurality of bosses adjacent to each through hole, configured to guide and position the each clamping lug; and (d) a gasket positioned between the top plate and the fuel tank.

Systems and methods for installing and sealing a fuel pump in a fuel tank are disclosed. In one embodiment, a system for installing and sealing a fuel pump in a fuel tank may include (1) a fuel tank with an opening in a surface thereof; and (2) a fuel pump hanger assembly, the fuel pump hanger assembly comprising; (a) a plurality of assembly screws; (b) a plurality of clamping lugs configured to thread onto the plurality of assembly screws and engage an inside surface of the fuel tank; (c) a top plate further comprising; (i) a bearing surface configured to engage an external fuel tank surface; (ii) a plurality of through holes proximate the perimeter of the top plate and perpendicular to the bearing surface; (iii) a plurality of bosses, each of the plurality of bosses adjacent to each through hole, configured to guide and position the each clamping lug; and (d) a gasket positioned between the top plate and the fuel tank.