Abstract: A hybrid underlayment, includes a thermoplastic making up between 92.0% by volume to 95.5% by volume of the hybrid underlayment. A plurality of expanded microspheres is dispersed through the thermoplastic. The microspheres are expanded to a volume in a range of between 180 square micrometers and 1450 square micrometers. The microspheres makeup between 1.0% by volume to 7.5% by volume of the hybrid underlayment. The hybrid underlayment is extruded into a flat sheet having a thickness of between 1.0 mm and 2.0 mm and a density from 7 pcf to 25 pcf. A metalized thermoplastic film is laminated to the top surface of the thermoplastic sheet. A pre-stretched laminated oriented mesh fabric is fused to the metalized thermoplastic film.

Abstract: A dual input power supply system/method providing uninterruptable power to a protected load device (PLD) is disclosed. The system includes hybrid switch devices (HSD) comprising semiconductor and relay/contactors that minimize the OPERATE/RELEASE times associated with switchover from a primary power source (PPS) to a secondary power source (SPS). An operate/release controller (ORC) monitors the condition of power provided by the PPS and SPS and determines the optimal transfer time to activate the HSD and switch between the PPS and SPS based on the PLD configuration. Use of the HSD in conjunction with the ORC permits a wide variety of series permutated AC/DC primary (PPS) and secondary (SPS) power sources, EMI snubbers (EMS), bridge rectifier diodes (BRD), AC-DC converters (ADC), and DC-DC converters (DDC) to service the PLD, while simultaneously reducing storage capacitors normally required to cover the OPERATE/RELEASE times associated with traditional PPS/SPS switchover/failover delays.

Abstract: A power supply failover system/method providing uninterruptable power to protected load devices (PLD) is disclosed. The system includes a failover switch controller (FSC) with inputs from an AC I/V monitor (AIV), AC cycle counter (ACC), failover switch timer (FST), and overcurrent protection timer (OPT). The FSC utilizes these inputs to control failsafe switching of a bypass phase switch (BPS) and AC phase switch (ACS) to the PLD when power from the APS is determined to be good by the AIV. When power from the APS is determined to be compromised by the AIV, the FPS disables the ACS/BPS and enables a DC switch (DCS) and battery isolation switch (BIS) to connect a DC source to the PLD after a time period determined by the FST. APS/DCS overcurrent protection is limited by OPT intervals allowing a smooth transition between the APS to DCS during power failover/failback.

Abstract: A chair has a frame with legs, a seat hoop carried by the legs, and a backrest extending above the seat hoop. A seat is carried by the seat hoop of the frame, and has a seat base with a cushion. A perimeter lip circumscribes the seat base and rests over the seat hoop. The seat base has a flexible and resilient corrugated interior capable of deflecting under weight and returning when the weight is removed. An annular bottom projection projects from the seat base between the perimeter lip and the corrugated interior and into the seat hoop, and has an annular bottom surface substantially flush with the lower surface of the seat hoop.

Abstract: According to at least one aspect of the present disclosure, a lamp assembly includes a lens with a top portion and a sleeve portion, the sleeve portion defining an interior volume, and the top portion including a seating flange; a housing disposed within the interior volume, the housing comprising a first chamber and a second chamber adjacent the first chamber; a photovoltaic array disposed within the first chamber; an electronic circuit disposed within the housing and electrically connected to the photovoltaic array; a light source disposed within the first chamber and electrically connected to the circuit; and a battery disposed within the second chamber and electrically connected to the circuit, wherein the interior volume and the second chamber are sealed from the environment, and wherein the sleeve portion of the lens extends below the seating flange, thereby enabling the seating flange to seat upon a mounting surface.

Abstract: A frame for a window or a door, or both, is provided. The frame includes at least two metal frame members which are separated. A thermal strut engages both frame members, creating a thermal barrier between the frame members and acting as a structural component of the frame.

Abstract: A hinge device for a door is provided. The hinge device has two hinge members which engage with each other and a hinge cap. A bearing with one or more tapered ends engages with the hinge members to allow easy opening and closing of a door attached to the hinge device.

Abstract: A hybrid underlayment, includes a thermoplastic making up between 92.0% by volume to 95.5% by volume of the hybrid underlayment. A plurality of expanded microspheres is dispersed through the thermoplastic. The microspheres are expanded to a volume in a range of between 180 square micrometers and 1450 square micrometers. The microspheres makeup between 1.0% by volume to 7.5% by volume of the hybrid underlayment. The hybrid underlayment is extruded into a flat sheet having a thickness of between 1.0 mm and 2.0 mm and a density from 7 pcf to 25 pcf. A metalized thermoplastic film is laminated to the top surface of the thermoplastic sheet. A pre-stretched laminated oriented mesh fabric is fused to the metalized thermoplastic film.

Abstract: An uninterruptable power supply (UPS) system/method providing power line conditioning and power factor correction (PFC) that incorporates centralized battery backup energy storage architecture is disclosed. The system generally comprises an AC-DC power supply with active PFC (power factor correction) function, a battery transfer switch, an isolated battery charger placed between the utility power source and battery strings, battery strings connecting the battery charger and the battery transfer switch, EMI/Lightning circuitry that provides lighting/line surge protection as well noise suppression functions, and a controller monitoring the quality of the utility power source. Uninterruptable power for data centers is achieved in this context via use of the battery strings, battery transfer switch, battery charger, and controller system configuration. Disclosed methods associated with this system generally permit the UPS to operate in a distributed fashion in support of computing systems within data centers.

Abstract: A hybrid underlayment, includes a thermoplastic making up between 92.0% by volume to 95.5% by volume of the hybrid underlayment. A plurality of expanded microspheres is dispersed through the thermoplastic. The microspheres are expanded to a cross-sectional area in a range of between 180 square micrometers and 1450 square micrometers. The microspheres makeup between 1.0% by volume to 7.5% by volume of the hybrid underlayment. The hybrid underlayment is extruded into a flat sheet having a thickness of between 1.0 mm and 2.0 mm and a density from 7 pcf to 25 pcf. A metalized thermoplastic film is laminated to the top surface of the thermoplastic sheet.

Abstract: A hybrid underlayment, includes a thermoplastic making up between 92.0% by volume to 95.5% by volume of the hybrid underlayment. A plurality of expanded microspheres is dispersed through the thermoplastic. The microspheres are expanded to a volume in a range of between 180 square micrometers and 1450 square micrometers. The microspheres makeup between 1.0% by volume to 7.5% by volume of the hybrid underlayment. The hybrid underlayment is extruded into a flat sheet having a thickness of between 1.0 mm and 2.0 mm and a density from 7 pcf to 25 pcf.

Abstract: An alternating current power supply apparatus sends an alternating current power to a dimmer. The dimmer dims the alternating current power to fetch a dimmed power. The dimmer sends the dimmed power to a rectification unit. The rectification unit rectifies the dimmed power to fetch a rectified power. The rectification unit sends the rectified power to an integration sampling unit and a light emitting diode. The integration sampling unit integrates, samples and converts the rectified power to fetch an integration voltage signal. The integration sampling unit sends the integration voltage signal to a voltage-to-current control conversion unit. The voltage-to-current control conversion unit converts the integration voltage signal to fetch a driving current signal to drive the light emitting diode. The driving current signal is constant, so that the light emitting diode is not blinking.

Abstract: A chair has a frame with legs, a seat hoop carried by the legs, and a backrest extending above the seat hoop. A seat is carried by the seat hoop of the frame, and has a seat base with a cushion. A perimeter lip circumscribes the seat base and rests over the seat hoop. The seat base has a flexible and resilient corrugated interior capable of deflecting under weight and returning when the weight is removed. An annular bottom projection projects from the seat base between the perimeter lip and the corrugated interior and into the seat hoop, and has an annular bottom surface substantially flush with the lower surface of the seat hoop.

Abstract: A flooring for covering a floor substrate includes a hybrid underlayment and a plurality of interlocking synthetic tiles. The hybrid underlayment is coupled to the floor substrate with a first adhesive layer. The hybrid underlayment includes an extruded thermoplastic sheet having a plurality of gas-filled expanded thermoplastic microspheres distributed throughout the thermoplastic sheet. Each of the plurality of interlocking synthetic tiles is coupled to the hybrid underlayment with a second adhesive layer.

Abstract: A bi-level dimming control circuit is disclosed. The bi-level dimming control circuit is electrically coupled between two switches and a driver circuit that is compatible with 0 to 10 volt dimming signals. The bi-level dimming control circuit controls the output from the driver circuit based on the on and off positions of the switches. In repose to the on and off positions of the switches the driver circuit powers a light engine between a maximum light output mode, a zero light output mode and a reduced or dimmed light output mode. The bi-level control circuit is used to modulate LED light engines, fluorescent light engines and combinations thereof.

Abstract: A force resistant panel system is provided where a window pane is bordered by a sash and magnetically attracted to an exterior flange. The exterior flange is attached to an opening in a wall, facing outward. An interior flange with a channel is attached to the inside and facing inward. The exterior flange and interior flange combine to form a channel for which the window pane can travel in the event of a blast. Decorative trim snaps into a groove on the interior flange and generates static outward pressure against the sash.

Abstract: According to at least one aspect of the present disclosure, a lamp assembly includes a lens with a top portion and a sleeve portion, the sleeve portion defining an interior volume, and the top portion including a seating flange; a housing disposed within the interior volume, the housing comprising a first chamber and a second chamber adjacent the first chamber; a photovoltaic array disposed within the first chamber; an electronic circuit disposed within the housing and electrically connected to the photovoltaic array; a light source disposed within the first chamber and electrically connected to the circuit; and a battery disposed within the second chamber and electrically connected to the circuit, wherein the interior volume and the second chamber are sealed from the environment, and wherein the sleeve portion of the lens extends below the seating flange, thereby enabling the seating flange to seat upon a mounting surface.

Abstract: A portable dance floor system comprises a plurality of floor panels removably couplable together to form a dance floor assembly, with each floor panel comprising a perimeter frame circumscribing a core, and a dance floor surface substantially covering the frame and core. The frame has an extrusion with an outwardly facing channel having an opening, and an elongated cavity behind the channel. A plurality of bores can extend into the extrusion from a back of the extrusion, into the channel, and to the opening. A plurality of magnets can each be disposed in a different one of the plurality of bores. A retaining strip can be disposed in the elongated cavity and can hold the plurality of magnets in the plurality of bores between the retaining strip and the opening. The panel can include the core having an aluminum honeycomb between aluminum skins.