Abstract: The flexible duct connector processing system of the present invention comprises a decoiler machine and a processing machine. The decoiler machine stores one or more rolls of flexible duct connector stock which are fed to the processing machine. The processing machine beads, notches, and cuts the flexible duct connector stock according to programmed instructions received from a control system. A conveyor system disposed after the processing machine optionally collects the cut flexible duct connector stock and conveys it in batches.

Abstract: The flexible duct connector processing system of the present invention comprises a decoiler machine and a processing machine. The decoiler machine stores one or more rolls of flexible duct connector stock which are fed to the processing machine. The processing machine beads, notches, and cuts the flexible duct connector stock according to programmed instructions received from a control system. A conveyor system disposed after the processing machine optionally collects the cut flexible duct connector stock and conveys it in batches.

Abstract: A pop-up fastener including a tubular retainer for one-way passage into a socket. A fastening member slidably extends through the retainer. The fastening member has helical threads at its top and a protrusion at its bottom. A compressed spring is positioned atop the retainer for urging the protrusion into engagement with the bottom of the retainer and for urging the helical threads from the top of the retainer.

Abstract: A switching power supply (96) receives an AC voltage and converts it to a regulated DC voltage. The switching power supply (96) includes a Vcc limiter (16) to limit the operating voltage at the power supply terminal (10) of a integrated regulator circuit (118). The Vcc limiter (16) limits the operating voltage at the power supply terminal (10). When operating voltage at power supply terminal (10) increases, a differential pair of transistors (22, 24) supply a differential current to a current mirror configuration of transistors (26, 30) to supply voltage to a drive transistor (36) to increase current in the drive transistor (36) to a value based on n times the current in a reference transistor (26). An increase in current through the drive transistor (36) counteracts increased operating voltage at the power supply terminal (10), thereby reducing the operating voltage level back to a desired level.