An elbow fitting including an elbow body having an inlet, an outlet and an internal flow path formed therein. The inlet is in fluid communication with the outlet via the flow path. The elbow body, the inlet and the outlet together form a unitary workpiece. The unitary workpiece has a dead weight in a range between about 350 lbs and about 1,400 lbs. The inlet and the outlet each have an internal diameter of not less than about 7 inches. The elbow body is further capable of retaining an internal pressure of at least about 10,000 psi. The flow path may further include an enlarged chamber also formed within the elbow body. The enlarged chamber may be generally spherically shaped. An enclosed portion may be in fluid communication with the enlarged chamber.

An elbow fitting including an elbow body having an inlet, an outlet and an internal flow path formed therein. The inlet is in fluid communication with the outlet via the flow path. The elbow body, the inlet and the outlet together form a unitary workpiece. The unitary workpiece has a dead weight in a range between about 350 lbs and about 1,400 lbs. The inlet and the outlet each have an internal diameter of not less than about 7 inches. The elbow body is further capable of retaining an internal pressure of at least about 10,000 psi. The flow path may further include an enlarged chamber also formed within the elbow body. The enlarged chamber may be generally spherically shaped. An enclosed portion may be in fluid communication with the enlarged chamber.

A through-air apparatus for drying or bonding paper, tissue, or nonwoven webs is provided. The apparatus includes a web-carrying structure configured to move and a first component having at least one sealing element adjacent the web-carrying structure, where the sealing element is configured to reduce the infiltration of ambient air into the through-air apparatus. The apparatus also includes at least one channel configured to direct air to the sealing element to reduce the infiltration of ambient air into the through-air apparatus. A method of operating a through-air apparatus for drying or bonding paper, tissue, or nonwoven webs is also provided. The method includes directing air to a sealing element to reduce the infiltration of ambient air into the through-air apparatus.

A through-air apparatus for drying or bonding paper, tissue, or nonwoven webs is provided. The apparatus includes a web-carrying structure configured to move and a first component having at least one sealing element adjacent the web-carrying structure, where the sealing element is configured to reduce the infiltration of ambient air into the through-air apparatus. The apparatus also includes at least one channel configured to direct air to the sealing element to reduce the infiltration of ambient air into the through-air apparatus. A method of operating a through-air apparatus for drying or bonding paper, tissue, or nonwoven webs is also provided. The method includes directing air to a sealing element to reduce the infiltration of ambient air into the through-air apparatus.

The present invention is directed to a magnetic duct cleaning hose clamp for attaching an airflow hose to a HVAC duct to be cleaned. The improved duct cleaning hose clamp includes: a planar clamp base; a plurality of magnets arranged around the periphery of the back surface of the clamp base; a compressible sealing member located between the magnetic attachment pads on the back surface of the clamp base; at least one handle portion extending from the front surface of the clamp base; a duct cleaning hose mounting portion protruding from the front surface of the clamp base; and a duct cleaning hose mounting portion defining an airflow aperture which is in fluid communication with a remote HVAC duct cleaning base unit. The present invention further includes magnetic duct access door of similar construction to the clamp. The magnetic access door provides for frequent access to a variety of different kinds of duct. The design of the improved clamp and the improved access door allow for creation of an efficient magnetic attraction seal with a metallic duct and easy manual removal of the clamps or access doors of the invention by tilting the clamp or access door via the handles on its front surface.

The present invention is directed to a magnetic duct cleaning hose clamp for attaching an airflow hose to a HVAC duct to be cleaned. The improved duct cleaning hose clamp includes: a planar clamp base; a plurality of magnets arranged around the periphery of the back surface of the clamp base; a compressible sealing member located between the magnetic attachment pads on the back surface of the clamp base; at least one handle portion extending from the front surface of the clamp base; a duct cleaning hose mounting portion protruding from the front surface of the clamp base; and a duct cleaning hose mounting portion defining an airflow aperture which is in fluid communication with a remote HVAC duct cleaning base unit. The present invention further includes magnetic duct access door of similar construction to the clamp. The magnetic access door provides for frequent access to a variety of different kinds of duct. The design of the improved clamp and the improved access door allow for creation of an efficient magnetic attraction seal with a metallic duct and easy manual removal of the clamps or access doors of the invention by tilting the clamp or access door via the handles on its front surface.

Disclosed is a plumbing trap provided with a top access clean out for use with a P-trap. A horizontal extension conduit having an elbow having a threaded connection for attachment to a P-trap. The elbow forms an outside curvature at which is formed a clean out member providing bi-directional access within the plumbing passageway. The clean out member allows for access without having to remove the P-trap and while fluid flow is maintained within the passageway. The clean out member includes an outlet aligned along an axis that is positioned in a vertical plane at a 45 angle relative to the first axis and a 45 angle relative to the second axis and a 45 angle relative to horizontal plane relative to the first axis. A second clean out member may be positioned in a mirror image and at a 90 angle to the first clean out.

A clean out notification disc is placed in a clean out underneath a clean out cover to provide a durable notification mechanism of certain conditions of a main sewer line, such as, for example, the existence of a sewer liner, a backflow valve or a grease trap.

The present invention is directed to a magnetic duct cleaning hose clamp for attaching an airflow hose to a HVAC duct to be cleaned. The improved duct cleaning hose clamp includes: a planar clamp base; a plurality of magnets arranged around the periphery of the back surface of the clamp base; a compressible sealing member located between the magnetic attachment pads on the back surface of the clamp base; at least one handle portion extending from the front surface of the clamp base; a duct cleaning hose mounting portion protruding from the front surface of the clamp base; and a duct cleaning hose mounting portion defining an airflow aperture which is in fluid communication with a remote HVAC duct cleaning base unit. The present invention further includes magnetic duct access door of similar construction to the clamp. The magnetic access door provides for frequent access to a variety of different kinds of duct. The design of the improved clamp and the improved access door allow for creation of an efficient magnetic attraction seal with a metallic duct and easy manual removal of the clamps or access doors of the invention by tilting the clamp or access door via the handles on its front surface.

The present invention is directed to a magnetic duct cleaning hose clamp for attaching an airflow hose to a HVAC duct to be cleaned. The improved duct cleaning hose clamp includes: a planar clamp base; a plurality of magnets arranged around the periphery of the back surface of the clamp base; a compressible sealing member located between the magnetic attachment pads on the back surface of the clamp base; at least one handle portion extending from the front surface of the clamp base; a duct cleaning hose mounting portion protruding from the front surface of the clamp base; and a duct cleaning hose mounting portion defining an airflow aperture which is in fluid communication with a remote HVAC duct cleaning base unit. The present invention further includes magnetic duct access door of similar construction to the clamp. The magnetic access door provides for frequent access to a variety of different kinds of duct. The design of the improved clamp and the improved access door allow for creation of an efficient magnetic attraction seal with a metallic duct and easy manual removal of the clamps or access doors of the invention by tilting the clamp or access door via the handles on its front surface.