Abstract: A pipe and fitting coupling system includes a first pipe, a second pipe, and a joint. A receiving end of the second pipe includes a first flange, a second flange, a groove, and a sealant. The second flange extends further than the first flange. The groove is disposed at the pipe diameter and between the first flange and the second flange. The first flange has an inwardly angled face to meet the groove and the second flange has an outwardly angled face to meet the groove. The sealant is disposed in the groove to seal the plain end of the first pipe in the receiving end. The joint is formed by the cooperative alignment of the plain end being inserted into the receiving end and being sealed by the sealant.

Abstract: The present disclosure relate to coupling components including valve structures and methods for forming the valve structures. The method includes attaching together a male valve piece (52) and a female valve piece (54) to form a valve structure that extends along a longitudinal axis. The method includes inserting the male (52) and female (54) valve pieces axially together. The method also includes using a swaging tool (200) to inelastically deform at least one of the male and female valve pieces from an insertion configuration to a locking configuration in which relative axial movement between the male and female valve pieces is prevented.

Abstract: A hose connector assembly configured to repair or connect hoses, such as hydraulic hoses including a crimping sleeve, a hose insert and a first and second clamping nut. The hose insert is positioned within the crimping sleeve. The first clamping nut extends about the crimping sleeve on one side with the second clamping nut extending about the crimping sleeve on the other side. Whereupon, the tightening of the first clamping nut directs the crimping sleeve toward the hose insert to clamp a hose therebetween, and the tightening of the second clamping nut directs the crimping sleeve toward the hose insert to clamp a hose therebetween. The hose insert having a bore extending therethrough so as to place the hose portions in sealed fluid engagement through the bore.

Abstract: A device includes a connection nipple for connecting to a plastic tube. The connection end of the plastic tube, which is provided with a frontal chamfer at least in the area of the internal diameter, is axially fixed between the connection nipple and a clamping sleeve with at least one sealing ring held interposed in the profiled connection nipple. The connection nipple has at least one radially outwardly protruding stop , which is displaceable radially inward via the frontal chamfer in the area of the internal diameter of the connection end, the stop being situated in front of the sealing ring viewed in the insertion direction.

Abstract: This invention relates to sealing HVAC ductwork along its joints in order to reduce air leakage. The ductwork can be sealed by the combination of a gasket and mechanical locking mechanism.

Abstract: A first source of medical gas has a generally cylindrical male outlet with a cylindrical bore and a threaded outer cylindrical surface. A flexible cylindrical elastomeric medical gas tubing has an input end with a bushing making a flush abutment with the male outlet at the output orifice. An output end attaches to any of a plurality of medical gas utilizing devices, but preferably with a dampening disperser held in position in the space in the vicinity of a patient's nose and mouth. An annular flange of the input end bushing resides within a central cylindrical bored out region extending through the first end and nearly to the second end of a rotatable connector forming an interior surface of a connector with threads coupling with the threads of the male outlet. The second end is an annular abutment against the annular flange holding the input end tubing bushing against the outlet source and providing an airtight coupling. A gripping means is on the exterior surface of the connector.

Abstract: The performance of a PCA unit associated with an airport gate is monitored by a temperature sensor in the stream of output air leaving the PCA unit, to produce a signal indicative of the temperature of the output air that may be compared to an acceptable range of values, or to the temperature of air input to the PCA unit (as measured by a second temperature sensor). An alert is generated to a human operator if the temperature measured does not compare favorably with the desired range.

Abstract: An apparatus for visually communicating to a pilot in the cockpit of a parked aircraft the status of a preconditioned air (PCA) unit associated with the gate has an electrically controlled PCA indicator box positioned so that it is visible to the pilot in the cockpit. The PCA indicator box has a first appearance when the preconditioned air unit is not operating and a second appearance when the preconditioned air unit is operating. A method of assisting aircraft operators to reduce fuel costs and emissions of an aircraft parked at a gate includes mounting to the gate an electrical PCA indicator and electrically coupling it to a preconditioned air unit at the gate.

Abstract: A swivel connector for a pre-conditioned air (PCA) hose for an aircraft comprises an inner tube, an outer tube, and a bearing between the inner and outer tube such that an air hose mounted to the inner tube can rotate relative to an aircraft mounting affixed to the outer tube, to remove kinks or twists in the hose without disconnection.

Abstract: A ball and socket-type swivel connector for use with second stage scuba regulators used by scuba divers. The ball is made from a metal with good corrosion resistance. The ball is held in position by a low friction bushing. The bushing, compresses the metal swivel ball with light assembly pressure. This is accomplished by machining or molding the same radius of the swivel ball into one side of the low friction bushing. No seawater can enter the swivel. The ball has a unique O-ring slot or channel that completely encircles the ball along a path that permits an O-ring to wipe the bushing upon swiveling of the connector and prevents seawater from entering the swivel. No area exists for seawater to collect around the O-ring. The preferred embodiment uses a high-grade stainless steel swivel ball, low friction polymer bushing material and an internally lubricated low friction O-ring.

Abstract: Hose structures having a rotating unit that rotates a fixture are provided. In this regard, a representative hose structure, among others, includes a tube, a rotating unit, and a fixture. The fixture directs fluid and is attached to an end of the tube. The rotating unit connects the end of the tube to the fixture. The rotating unit includes a male connector that inserts into the tube. The male connector includes a borehole that enables fluid to pass through to the fixture. The male connector further includes an extending member that radially extends outward. The rotating unit further includes a ring that is placed between the fixture and the extending member. The ring is designed to rotate on the extending member enabling the fixture to rotate on the tube.