A flexible hose adapter configured for engagement with a coupling, the flexible hose adapter including an end piece, the end piece defining an inner end and an outer end, the end piece defining an axis extending from the inner end to the outer end, the end piece defining a raised lip, a sealing surface, and a groove, the raised lip axially positioned at the inner end, the sealing surface positioned between the raised lip and the groove; and a flexible hose attached to the outer end of the end piece.

Universal disinfecting connector, connector or cap can interface with male, female, female stopcock, and female hemodialysis threaded fittings, therefore encompassing an entire spectrum of disinfecting connectors. Disinfecting connector or cap includes a configuration of structural elements that provide a universal rotary cap incorporating rotary-activated interfaces and design features allowing the cap to be configured to selectively present any one of a plurality of connection types, or interfaces, for engaging, coupling, or capping, a corresponding type of a male or a female connector or luer.

A thread protector that has an external sleeve having threads disposed on an inner side to engage with pin threads disposed on a pin end of a tubular member. The thread protector also has a flange disposed on a first end of the external sleeve to engage with the pin end of the tubular member, the threads on the inner side of the external sleeve are disposed axially adjacent to the flange and radially adjacent to the end of the pin end of the tubular member. A method of protecting the pin threads of the pin ends of the tubular members. The method includes screwing the thread protector on the pin threads of the pin end of the tubular member.

A cap configured for engagement with a coupling can comprise an annular ring extending circumferentially around an outer portion of the cap, the cap defining an inner end and an outer end disposed opposite from the inner end, the annular ring defining a sealing surface between the inner end and the outer end, the annular ring defining a raised lip at the inner end, the raised lip extending radially outward from the sealing surface; and a web, the web enclosing the annular ring.

A cap configured for engagement with a coupling can comprise an annular ring extending circumferentially around an outer portion of the cap, the cap defining an inner end and an outer end disposed opposite from the inner end, the annular ring defining a sealing surface between the inner end and the outer end, the annular ring defining a raised lip at the inner end, the raised lip extending radially outward from the sealing surface; and a web, the web enclosing the annular ring.

A drain coupler includes a drain coupler body having a lower opening and an upper opening. A pliable seal is carried by or adjacent the upper opening, the pliable seal operable to form a water-tight seal about an exterior of a metallic throat section of a drain. Coupler engagement structure is carried by the drain coupler adjacent the upper opening of the drain coupler body. Cap engagement structure is carried by a cap. The cap engagement structure and the coupler engagement structure cooperatively enable removable engagement of the cap over the upper opening of the drain coupler body to temporarily cover the upper opening of the drain coupler. The cap is removable to allow insertion of the metallic throat section in the pliable seal.

An air plug is provided, including a switch, a circuit board, an elastic connecting wire and an enclosure. At least one LED bead is provided on the circuit board and electrically coupled to the circuit board. The elastic connecting wire has one end fixed to the circuit board and an other end fixed to the switch. The switch is electrically coupled to the circuit board. The circuit board is received within the enclosure and fixed to the enclosure. The elastic connecting wire and the switch are movably received within the enclosure. The air plug is insertable into an air inlet of an inflatable item, the inflatable item vibrates to activate the switch, and thus the LED bead is powered on to illuminate the inflatable item, such that the interest of the inflatable item is increased.

A locking cap may be selectively locked into place within a tubular opening, such as the open end of a standpipe used to charge a building sprinkler system. The locking cap may have a plug portion. A friction load can be used to limit the unauthorized removal of the plug portion.

A locking cap may be selectively locked into place within a tubular opening, such as the open end of a standpipe used to charge a building sprinkler system. The locking cap may have a plug portion. A friction load can be used to limit the unauthorized removal of the plug portion.

A bushing shield is used primarily but not exclusively in a commercial kitchen fire suppression system where pipes and EMT (electric metallic tube) carry detection line cables from a fusible link to a detection control. The bushing shield includes a guide bushing and a vapor barrier. The bushing shield minimizes grease vapors and foreign contaminant migration into a pipe or EMT of the commercial kitchen fire suppression system by forming a barrier, while simultaneously allowing the detection line cable to slide back and forth as intended by the fire suppression system manufacturer.