Abstract: A drain grate assembly includes a webbing and a reinforcement structure. The webbing includes webbing sections defining openings. A load rating of the drain grate is based on respective areas of the webbing sections and the openings. The reinforcement structure is secured to an underside of the webbing.

Abstract: A drain assembly for providing a drain in a floor. The drain assembly includes a drain conduit, a strainer and an adaptor. The drain conduit has an inner surface that defines a fluid flow path and an outer surface. The strainer is disposed above the drain conduit and has openings in fluid communication with the fluid flow path of the drain conduit. The adaptor may be securable in the drain conduit and may be connected to the strainer. Prior to securing the adaptor in the drain conduit, a position of the adaptor in the drain conduit may be moveable to allow atop surface of the strainer to be substantially aligned with the floor. A method of assembly is also disclosed.

Abstract: A pneumatic test plug for clean-out tees and a method of testing a pipeline are disclosed. The pneumatic test plug includes a cap and a bladder. The cap has an inflation inlet and a testing fluid inlet. The testing fluid inlet provides a conduit for a testing fluid. The testing fluid may be a liquid or a gas. The bladder is in fluid connection with the inflation inlet. The bladder has an open end and a closed end. The open end receives air from the inflation inlet. The closed end is opposite the open end. The testing fluid inlet provides testing fluid through the cap and outside of the bladder. The inflation inlet provides a passageway to the bladder.

Abstract: The present disclosure is directed to a backwater valve assembly comprising a main valve body, a flapper sub-assembly, and a cap. The main valve body has an inner wall that can define a recess into which the flapper sub-assembly can be removably secured. The flapper sub-assembly includes at least one flapper element that can pivot between an open position, in which the flapper element allows fluid to flow through the backwater valve assembly, and a closed position, in which the flapper element prevents fluid from flowing in the opposite direction. The flapper sub-assembly can be removably coupled to the cap to allow the flapper sub-assembly and cap to be installed in or removed from the main valve body together as a unitary assembly.

Abstract: The present invention relates to an assembly for providing a drain in a floor. The drain assembly includes a drain conduit, a strainer and an adaptor. The drain conduit has an inner, surface that defines a fluid flow path, and an outer surface. The strainer is disposed above the drain conduit and has openings in fluid communication with the fluid flow path of the drain conduit. The adaptor may be securable in the drain conduit and may be connected to the strainer. Prior to securing the adaptor in the drain conduit, a position of the adaptor in the drain conduit may be moveable to allow a top surface of the strainer to be substantially aligned with the floor. A method of assembly is also disclosed.

Abstract: A roof flashing and a combination of the roof flashing, a roof structure, and a conduit are provided. The roof flashing includes a base and a flexible tube. Both the base and the flexible tube include an elastic water barrier and a plastically deformable shaping material, allowing the base to be molded to the contours of the roof structure and the tube to be shaped to closely fit around the conduit.

Abstract: The present disclosure is directed to a backwater valve assembly comprising a main valve body, a flapper sub-assembly, and a cap. The main valve body has an inner wall that can define a recess into which the flapper sub-assembly can be removably secured. The flapper sub-assembly includes at least one flapper element that can pivot between an open position, in which the flapper element allows fluid to flow through the backwater valve assembly, and a closed position, in which the flapper element prevents fluid from flowing in the opposite direction. The flapper sub-assembly can be removably coupled to the cap to allow the flapper sub-assembly and cap to be installed in or removed from the main valve body together as a unitary assembly.

Abstract: A drain grate assembly includes a webbing and a reinforcement structure. The webbing includes webbing sections defining openings. A load rating of the drain grate is based on respective areas of the webbing sections and the openings. The rein-forcement structure is secured to an underside of the webbing.

Abstract: A pneumatic test plug for clean-out tees and a method of testing a pipeline are disclosed. The pneumatic test plug includes a cap and a bladder. The cap has an inflation inlet and a testing fluid inlet. The testing fluid inlet provides a conduit for a testing fluid. The testing fluid may be a liquid or a gas. The bladder is in fluid connection with the inflation inlet. The bladder has an open end and a closed end. The open end receives air from the inflation inlet. The closed end is opposite the open end. The testing fluid inlet provides testing fluid through the cap and outside of the bladder. The inflation inlet provides a passageway to the bladder.

Abstract: A drain assembly for providing a drain in a floor. The drain assembly includes a drain conduit, a strainer and an adaptor. The drain conduit has an inner surface that defines a fluid flow path and an outer surface. The strainer is disposed above the drain conduit and has openings in fluid communication with the fluid flow path of the drain conduit. The adaptor may be securable in the drain conduit and may be connected to the strainer. Prior to securing the adaptor in the drain conduit, a position of the adaptor in the drain conduit may be moveable to allow atop surface of the strainer to be substantially aligned with the floor. A method of assembly is also disclosed.

Abstract: The present invention relates to an assembly for providing a drain in a floor. The drain assembly includes a drain conduit, a strainer and an adaptor. The drain conduit has an inner, surface that defines a fluid flow path, and an outer surface. The strainer is disposed above the drain conduit and has openings in fluid communication with the fluid flow path of the drain conduit. The adaptor may be securable in the drain conduit and may be connected to the strainer. Prior to securing the adaptor in the drain conduit, a position of the adaptor in the drain conduit may be moveable to allow a top surface of the strainer to be substantially aligned with the floor. A method of assembly is also disclosed.

Abstract: A roof flashing and a combination of the roof flashing, a roof structure, and a conduit are provided. The roof flashing includes a base and a flexible tube. Both the base and the flexible tube include an elastic water barrier and a plastically deformable shaping material, allowing the base to be molded to the contours of the roof structure and the tube to be shaped to closely fit around the conduit.

Abstract: A tubular reducer fitting for transitioning from an existing electrical nonmetallic tubing socket of one size to an electrical nonmetallic tubing socket of a smaller size. The male end portion has a cylindrical outer surface with a pair of axially-spaced projections extending outwardly therefrom and is receivable in an existing electrical nonmetallic tubing socket. The female end portion has an electrical nonmetallic tubing socket therein. The male end portion is configured for locking reception in a first trade size electrical nonmetallic tubing socket and the opposite female connector end portion has a smaller trade size electrical nonmetallic tubing socket herein.

Abstract: A knockout in a sidewall of a plastic electrical box has a slot for receiving a screwdriver tip to apply a knockout force to the knockout. The slot is located adjacent the box bottom wall to minimize deformation of the sidewall by a knockout force.

Abstract: A bracket for supporting electrical nonmetallic tubing has axially aligned large and small spring clips for receiving and retaining large and small diameter tubing. A plurality of side-by-side pairs of the spring clips are arranged with the large and small spring clips in one pair reversely positioned relative to the large and small spring clips in an adjacent pair. Some clips are configured for attaching ties thereto that extend over a tube to hold the tube in the clip. The bracket has support legs for engaging a support surface, and fastener receiving extensions for attaching the bracket to the support surface.

Abstract: An electrical box having spring legs for supporting the box within a space between a pair of spaced-apart parallel concrete forms. The legs engage the inside surface of one form and bias the open end of the box against the inside surface of the other form. The legs and the bottom of the box are cooperatively configured to facilitate attachment of the legs to the box. A bendable strap is attached to the box for wrapping around reinforcing bars within the forms. The legs and strap hold the box in position when concrete is poured into the space between the forms. The entire box and support elements remain embedded within the finished concrete wall, and with the open end of the box exposed at an outer surface of the concrete wall.