Patent application number | Description | Published |
20100206296 | PARABOLIC SOLAR COLLECTOR - A passive solar collector utilizes a support constructed of precisely machined foam to simplify the construction and calibration of the reflective surface. Further improvements include sensor-based positioning, and a receiver having inflow and outflow conduits adapted to improve thermal efficiency. | 08-19-2010 |
20120060831 | PARABOLIC SOLAR COLLECTOR - A passive solar collector utilizes a support constructed of precisely machined foam to simplify the construction and calibration of the reflective surface. Further improvements include sensor-based positioning, and a receiver having inflow and outflow conduits adapted to improve thermal efficiency. | 03-15-2012 |
20130213455 | HYBRID SOLAR COLLECTOR - A hybrid solar collector is disclosed having a passive solar collector unit and active photovoltaic panels. The inclination angle of the photovoltaic panels is optimized by linking the panels to the passive unit and its associated tracking controls. | 08-22-2013 |
20130291926 | Solar Tracking Apparatus - A solar tracking apparatus is provided having pivoting struts located proximate the north and south sides of the collector surface. The crossed struts permit the inclination angle of the collector surface to be varied throughout the day without heavy supports. The support frame can be adapted for quick assembly, disassembly and transportation. | 11-07-2013 |
Patent application number | Description | Published |
20140020769 | QUICK CONNECT, POST ENERGIZED FLANGED JOINT FOR A DIAPHRAGM VALVE - A diaphragm valve feature a valve body having a passage that opens to allow fluid to pass, and closes to prevent fluid from passing, through the valve body; and a bonnet assembly having a pressure ring to load/unload a diaphragm depending on a first spring constant to seal a peripheral portion thereof, and a compressor to close/open the passage of the valve body. A rotational connection fixes together the valve body and bonnet assembly with a second spring constant that is higher than and independent from the first spring constant, and includes the valve body having a rim with two shouldered pins on opposite sides. The bonnet assembly has a corresponding rim with two keyways on opposite sides thereof. Each keyway is recessed to receive and engage a respective shouldered pin when the bonnet assembly is rotated relative to the valve body. | 01-23-2014 |
20140021391 | TEMPERATURE COMPENSATING FLANGED JOINT FOR A TEFLON DIAPHRAGM VALVE - Apparatus, including a diaphragm valve, is provided featuring a valve body, a diaphragm, a pressure ring, and at least one elastomeric member. The valve body may include a circumferential flange. The diaphragm may include a circumferential gasket portion configured to be seated on the circumferential flange so as to form a joint between the valve body and the diaphragm. The pressure ring may include concentric fluctuations, and may be configured to apply a sealing force against the joint so that the concentric fluctuations prevent radial movement of the circumferential gasket portion and the circumferential flange. The elastomeric member may be configured to respond to a compressive force and provide a substantially constant sealing force, transmitted through the pressure ring, regardless of small variations in the thickness or material dimensions of the circumferential gasket portion caused by temperature fluctuation or material flow and age. | 01-23-2014 |
20140021392 | TWO-STUD DIAPHRAGM FOR DIAPHRAGM VALVES - A diaphragm valve features a valve body having a fluid flow channel with a weir portion to control the flow of fluid through the fluid flow channel; a diaphragm that responds to a closing or force to make sealing contact with the weir portion to interrupt said flow, or to release the sealing contact with the weir portion to allow the flow; a compressor configured to apply the closing or force in order to interrupt or allow the flow; and two studs configured to: couple the compressor and the diaphragm together, attach to the diaphragm to provide attachment points on the diaphragm on each side of the weir portion, and respond to the closing or opening force so the attachment points on both sides of the weir portion cause the diaphragm to make sealing contact with the weir portion or cause the sealing contact to be released. | 01-23-2014 |
20140054488 | DIAPHRAGM VALVE HAVING SPHERICALLY-SHAPED VALVE BODY AND DIAPHRAGM SEALING SURFACE - Apparatus, including a diaphragm valve, is provided featuring a valve body configured with at least one spherically-shaped valve body sealing surface and a diaphragm configured with at least one diaphragm sealing surface, and also configured to respond to an applied force and provide sealing contact between the at least one diaphragm sealing surface and the at least one spherically-shaped valve body sealing surface. The valve body is configured with a spherical weir having a spherical weir sealing surface configured with polish marks substantially perpendicular to a weir leak path. The valve body also has a circular rim having a spherically-shaped peripheral sealing surface configured with polish marks, many of which are substantially perpendicular to a shell leak path. | 02-27-2014 |
20140061525 | DIAPHRAGM AND BACKING CUSHION SHAPING FOR INCREASED MEMBRANE LIFE - A weir-type diaphragm valve a valve body with a fluid channel and a weir having a weir sealing portion; and a diaphragm with two or more diaphragm portions, including a diaphragm weir sealing portion at the weir to respond to one force and travel against the weir sealing portion to close the weir-type diaphragm valve and stop fluid flow through the fluid channel, and respond to a second force and travel away from the weir sealing portion to open the weir-type diaphragm valve and allow fluid flow through the fluid channel, a center flexing portion off the weir configured to experience convex and concave flexing extremes when the weir-type diaphragm valve is closed and opened, and an outer sealing portion configured to be fully constrained between components, one of which includes the valve body, when the weir-type diaphragm valve is closed and opened. The diaphragm portions have different characteristics based on different material stresses associated with different functionality that each portion is configured to perform when the weir-type diaphragm valve is closed and opened. | 03-06-2014 |
20150083953 | QUICK RELEASE VALVE COMPRESSOR - Apparatus is provided featuring a spindle having extending spindle portions configured with spindle glands; a compressor having extending compressor portions configured with compressor glands, and a snap ring configured to engage the spindle glands and the compressor glands in order to attach the spindle and compressor together, so that the compressor may be quickly released from the spindle by releasing an engagement between the snap ring, the spindle glands and/or the compressor glands. | 03-26-2015 |
Patent application number | Description | Published |
20090243054 | I/O CONNECTION SCHEME FOR QFN LEADFRAME AND PACKAGE STRUCTURES - Methods, systems, and apparatuses for integrated circuit packages and lead frames are provided. A quad flat no-lead (QFN) package includes a plurality of peripherally positioned pins, a die-attach paddle, an integrated circuit die, and an encapsulating material. The die-attach paddle is positioned within a periphery formed by the pins. The die is attached to the die-attach paddle. The encapsulating material encapsulates the die on the die-attach paddle, encapsulates bond wires connected between the die and the pins, and fills a space between the pins and the die-attach paddle. One or more of the pins are extended. An extended pin may be elongated, L shaped, T shaped, or “wishbone” shaped. The extended pin(s) enable wire bonding of additional ground, power, and I/O (input/output) pads of the die in a manner that does not significantly increase QFN package cost. | 10-01-2009 |
20090262791 | MULTIMODE DSL LINE DRIVER - A multimode DSL (digital subscriber line) line driver circuit is disclosed. The line driver circuit includes a switch network that enables the line driver circuit to be switched between multiple DSL communication configurations. Upon receipt of a mode control signal, the line driver circuit switches from a first DSL communication configuration to a second communication configuration. A DSL communication signal configured according to the second DSL communication configuration is received at the line driver circuit. The received DSL communication signal is amplified and/or filtered by the line driver circuit. The received DSL communication signal is transmitted from the line driver circuit. In one example implementation, the line driver circuit may be switched from an asymmetric digital subscriber line (ADSL) configuration to a very high speed digital subscriber line (VDSL) configuration, and may be switched from the VDSL configuration to the ADSL configuration. | 10-22-2009 |
20090278602 | CLOSED LOOP SURGE PROTECTION TECHNIQUE FOR DIFFERENTIAL AMPLIFIERS - A differential amplifier with surge protection is described. The differential amplifier includes a first output driver device, a second output driver device, a first replica device, a second replica device, a current comparator, and a clamp circuit. The first replica device is configured to be a replica of the first output driver device. The second replica device is configured to be a replica of the second output driver device. The current comparator is configured to generate a threshold current, and to compare the threshold current to a first current through the first replica device and a second current through the second replica device. The clamp circuit is configured to limit a third current through the first output driver device and a fourth current through the second output driver device if the current comparator determines that the threshold current is greater than the first current or the second current. | 11-12-2009 |
20100176849 | CLOSED LOOP SURGE PROTECTION TECHNIQUE FOR DIFFERENTIAL AMPLIFIERS - A differential amplifier with surge protection is described. The differential amplifier includes a first output driver device, a second output driver device, a first replica device, a second replica device, a current comparator, and a clamp circuit. The first replica device is configured to be a replica of the first output driver device. The second replica device is configured to be a replica of the second output driver device. The current comparator is configured to generate a threshold current, and to compare the threshold current to a first current through the first replica device and a second current through the second replica device. The clamp circuit is configured to limit a third current through the first output driver device and a fourth current through the second output driver device if the current comparator determines that the threshold current is greater than the first current or the second current. | 07-15-2010 |