A plug for a vehicle includes: a body portion; a plurality of insertion portions configured to be inserted into a through-hole provided in a housing; and a flange portion having a notch formed on an outer periphery so as to restrict a rotation of the body portion around an axial center. The insertion portions are formed at two positions opposed to each other across a straight line passing through the notch and the axial center and are provided with retaining lugs engageable with the through-hole.

A reducing tee that includes a main portion extending from a first end to a second end with an intermediate portion disposed between the first end and the second end. A main passageway extends from the first end to the second end, and a branch extends outwards from the intermediate portion containing a passageway in fluid communication with the main passageway. A water trap having a hollow body with a first open end, a second open end, an exterior surface, an interior surface, and a linear passageway extends between the first open end and the second open end disposed within the reducing tee.

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.

A pipe unit coupling structure includes a first member in which a first hole is formed, a second member including a pipe unit which is coupled to the first member by being inserted into the first hole, and a third member coupled to the second member by a coupling unit. The second member has an inclined surface formed at a tip of the pipe unit. The inclined surface is configured in such a manner that, when the inclined surface is pressed against the first member when the pipe unit of the second member is inserted into the first hole of the first member in a state where the second member and the third member are coupled to each other, a force is applied from the second member to the third member at the coupling unit, in a direction opposite to a direction of separation of the second member.

A tube to bulkhead joint is provided. The joint includes a bulkhead defining an aperture and comprising an interior facing sidewall at the aperture, a tubular element, which is insertible into the aperture, the tubular element including an end sized to fit into the aperture and slotted to form multiple deflectable fingers, and adhesive disposable between at least the multiple deflectable fingers and the interior facing sidewall of the aperture.

A connector is provided comprising a first hollow connector body having an inner face including a slot, and an outer face, the first hollow connector body having an aperture passing through the inner face and the outer face; a second hollow connector body having an inner face including a slot, and an outer face, the second hollow connector body having an aperture passing through the inner face and the outer face; and, a fluid transfer member, interposed between the first hollow connector body and the second hollow connector body, wherein the fluid transfer member is slidably arranged in the slot of the inner face of the first hollow body and the slot of the inner face of the second hollow body to provide slidable movement between a first fluid transfer position and a second fluid transfer position.

A reducing tee that includes a main portion extending from a first end to a second end with an intermediate portion disposed between the first end and the second end. A main passageway extends from the first end to the second end, and a branch extends outwards from the intermediate portion containing a passageway in fluid communication with the main passageway. A water trap having a hollow body with a first open end, a second open end, an exterior surface, an interior surface, and a linear passageway extends between the first open end and the second open end disposed within the reducing tee.

A connector is provided comprising first and second hollow connector bodies, the connector having a first expanded position providing a first fluid flow path through the first hollow connector body, and a second collapsed position providing a second fluid flow path through the first and second hollow connector bodies.

A connector apparatus featuring a main pipe with first and second opposed ends. Each has a corresponding male-threaded fastening section for mating with the complimentary female-threaded fastening section on a respective conventional pipe-locking ring or collar. A valve-housing for supporting a one-way flow valve assembly interiorly, and a riser mounted on and supported by the valve housing for ultimate connection to the output or exhaust nozzle of a medical scavenger device.

The present invention relates to a double connector for a tubular insert intended to connect an extra-corporeal circuit to a peristaltic pump. The double connector comprises: a first channel with an axis a.sub.1, a second channel with an axis a.sub.2 not parallel to a.sub.1, a pressure chamber arranged along the first channel and suitable for co-operation with a pressure sensor. The pressure chamber is closed, on the opposite side with respect to the second channel, by a membrane which extends mainly in a plane substantially parallel to both the axes a.sub.1 and a.sub.2. Moreover, a straight line r, passing through both axes a.sub.1 and a.sub.2 and perpendicular thereto, crosses the membrane. The invention also relates to a tubular insert comprising the double connector and an extra-corporeal circuit comprising the tubular insert.