Patent application number | Description | Published |
20120227608 | ELECTRONIC DETONATOR SYSTEM - A detonator includes a high voltage switch, an initiator and an initiating pellet. The detonator also includes a low voltage to high voltage firing set coupled to the switch and initiator such that the detonator includes a high voltage power source and initiator in an integrated package. The detonator may also include inductive powering and communications, a microprocessor, tracking and/or locating technologies, such as RFID, GPS, etc., and either a single or combination explosive output pellet. The combination explosive pellet has a first explosive having a first shock energy and a high brisance secondary explosive in the output pellet having a second shock energy greater than the shock energy of the first explosive. Systems are also provided for facilitating fast and easy deployment of one or more detonators in the field. | 09-13-2012 |
20130125772 | NON-ENERGETICS BASED DETONATOR - A detonator system is provided for use with explosives that utilizes two subsystems. A first subsystem functions as a non-explosives based detonator, which does not contain any explosives. The second subsystem is an initiating subsystem, which includes an initiating pellet. To set off an explosive event, the non-energetics based detonator is coupled to the initiating subsystem and the non-energetics based detonator is commanded to provide a suitable signal to the initiating subsystem that is sufficient to function the initiating pellet. Further, the initiating subsystem can be integrated directly into an associated explosive such as a booster that has been configured to receive the initiator subsystem without changing the hazard class of the booster. | 05-23-2013 |
20140123866 | ELECTRONIC DETONATOR SYSTEM - A detonator includes a high voltage switch, an initiator and an initiating pellet. The detonator also includes a low voltage to high voltage firing set coupled to the switch and initiator such that the detonator includes a high voltage power source and initiator in an integrated package. The detonator may also include inductive powering and communications, a microprocessor, tracking and/or locating technologies, such as RFID, GPS, etc., and either a single or combination explosive output pellet. The combination explosive pellet has a first explosive having a first shock energy and a high brisance secondary explosive in the output pellet having a second shock energy greater than the shock energy of the first explosive. Systems are also provided for facilitating fast and easy deployment of one or more detonators in the field. | 05-08-2014 |
20150260496 | NON-ENERGETICS BASED DETONATOR - A detonator system is provided for use with explosives that utilizes two subsystems. A first subsystem functions as a non-explosives based detonator, which does not contain any explosives. The second subsystem is an initiating subsystem, which includes an initiating pellet. To set off an explosive event, the non-energetics based detonator is coupled to the initiating subsystem and the non-energetics based detonator is commanded to provide a suitable signal to the initiating subsystem that is sufficient to function the initiating pellet. Further, the initiating subsystem can be integrated directly into an associated explosive such as a booster that has been configured to receive the initiator subsystem without changing the hazard class of the booster. | 09-17-2015 |
Patent application number | Description | Published |
20090322253 | LED Lighting System having a Reduced-Power Usage Mode - An LED lighting system, with first and second types of LEDs of different efficacies, has a reduced-power usage mode. A control system independently controls first and second control groups of first and second types of LEDs, respectively. The control system has one or more modes including a reduced-power usage mode for decreasing the overall power consumption of the lighting system while maintaining a light level of at least a predetermined percentage of the level present when the first control group of LEDs operates at a power level between less-than-full power and full power and the second control group is off. The predetermined percentage is 50. The control system decreases the overall power consumption of the lighting system in the reduced-power usage mode by turning off or dimming the first control group and turning on the second control group to at least some extent. | 12-31-2009 |
20100156298 | LED Lighting Arrangement - An LED lighting arrangement comprising at least one LED, for producing light is disclosed. A power supply provides power for the at least one LED. At least one control circuit is coupled to the at least one LED in a way that directly or indirectly uses, to power the at least one control circuit, one or more forward voltage drops across the at least one LED. Beneficially, one or more additional control circuits can be added without redesign of the power supply for the at least one LED. | 06-24-2010 |
20100244735 | Lighting Device Supplying Temporally Appropriate Light - A lighting device operable to supply temporally appropriate light to a user comprises a light socket adapter interposed between a primary socket and a first type of lamp. The primary socket is connected to a switchable supply of electrical power. A first type of lamp includes wavelengths below 530 nm that are suppressive of melatonin production in a user viewing the light. There is a second type of lamp that supplies light substantially all above 530 nm so as to avoid suppressing melatonin production in a user viewing the light. The light socket adapter has at least one mode of operation in which automatic means causes the first and second types of lamp to be exclusively operable during respective predetermined periods of time. | 09-30-2010 |
20100275999 | Photovoltaic Conversion Assembly with Concentrating Optics - A photovoltaic conversion assembly comprises an optical slab with first and second major surfaces and an intermediate surface therebetween. Light energy to be collected impinges as incoming photons on the first major surface. At least one PV cell is mounted to receive light energy from the intermediate surface of the optical slab and convert such light energy to electrical energy. The PV cell has a highest band gap E. A down-converting structure is located on the second major surface of the slab for converting to lower energy light received through the slab, with at least about 75 percent of the converted light having an energy level above the band gap E. A two-way spectrally selective reflector, located proximate the first major surface, cooperates with the down-converting structure for preventing high angle light from undesirably exiting the optical slab via the first major surface. | 11-04-2010 |
20110304296 | Light-Powered Transmitter Assembly - Disclosed is a light-powered transmitter assembly for transmitting a wireless signal relating to received light. The assembly comprises a photovoltaic device and an energy storage device connected to the photovoltaic device for receiving charge from the photovoltaic device. A threshold charge-sensing circuit connects to the energy storage device for making a determination whenever the charge of the energy storage device reaches a threshold level. A transmitting circuit, responsive to the threshold charge-sensing circuit, transmits a wireless signal that is indicative of the energy storage device having reached the threshold level of charge and that uniquely identifies the wireless signal as corning from the light-powered transmitter assembly. The transmitting circuit is at least partially powered from energy received from the energy storage device. An interval between two successive ones of the determinations is a function of average intensity of light received by the photovoltaic device. | 12-15-2011 |
20130279202 | Efficient Side-Light Distribution System - Improved side-light distribution systems are disclosed. One exemplary system includes a light source and a side-light distribution member. The light source supplies light to the side-light distribution member having (1) an net port on the first end of the member for receiving the light and (2) a second end having a reflective means. The inlet port consists of part of the surface area of the first end of the member. The reflective means associated with the second end of the member receives light from the first end and directs light towards the first end. At least part of a surface area of the first end of outside of the inlet port includes a reflective means for receiving the light from the second end and directing the light towards the second end of the rod. | 10-24-2013 |
Patent application number | Description | Published |
20100313955 | Method of Making Solar Collector Assemblies with Optical Concentrator Encapsulant - Disclosed is a method of making solar collector assemblies for photovoltaic conversion. The method comprises providing a mold for receiving encapsulant, the mold having serially arranged, alternating peaks and valleys. A respective PV solar cell is placed into each of a series of the valleys such that the light-receiving surfaces of the PV solar cells face upwards. Uncured encapsulant is delivered into the mold and onto the light-receiving surfaces, and from the light-receiving surfaces to a level at least as high as the peaks so as to form, above the light-receiving surfaces, optical concentrators for concentrating light received by the optical concentrators and directing the light to the light-receiving surfaces. The encapsulant is then cured. | 12-16-2010 |
20110030778 | Method of Passivating and Reducing Reflectance of a Photovoltaic Cell - Disclosed is a method of passivating and reducing reflectance of a silicon photovoltaic cell. The method includes the step of providing a silicon wafer of a solar cell having a major surface. A passivation layer of silicon nitride is applied on at least 98 percent of the major surface through a vacuum deposition process. An index-matching film structure, different from silicon nitride, is applied on top of the passivation layer. The index matching film structure provides the majority of the antireflective property of the combination of the passivation layer and the index matching film structure. | 02-10-2011 |
20110140915 | Distributed Personalized Energy and Carbon Accounting and Feedback System - Disclosed is a system for providing personalized energy usage feedback. The system comprises an arrangement to determine respective energy-usage of a specific person for each of a plurality of energy-consuming devices. The foregoing arrangement comprises power-usage sensors for the plurality of energy-consuming devices, an allocation arrangement for determining an estimated or measured allocation of power for each energy-consuming device that is attributable to the specific person, and an arrangement for determining the length of time of power usage that is attributable to the specific person. A feedback arrangement provides feedback to the specific person of all or a subset of the respective energy-usage attributable to that person. | 06-16-2011 |
20110192005 | Method of Making an Arrangement for Collecting or Emitting Light - Disclosed is a method of making an arrangement for collecting or emitting light. A flexible sheet of material serves as substrate for a plurality of light collecting or emitting devices mounted in spaced relation on the sheet. The sheet has thereon electrical leads for interconnection to each device. For each device, a respective light coupler is formed by (1) forming a plurality of reflectors on the sheet around the intended periphery of the respective device, by applying reflective material to selected areas of the sheet; (2) forming cut lines around selected edges of the plurality of reflectors; (3) forming fold lines associated with the reflectors; and (4) folding the reflectors and attached substrate away from the substrate portion on which the device is mounted, to form a coupler whose interior is reflective and that is substantially closed around a main axis of light propagation into or from the respective device. | 08-11-2011 |
20120063158 | Elongated Lighting System - Elongated lighting system comprises an elongated light pipe having first and second ends, with light supplied to those ends by at least one light source, via first and second light couplers that condition light to increase reflections within the light pipe. Light-extraction structure on the light pipe extracts light from the side of the pipe. An indentation in the light pipe has a depth and has surfaces oriented with respect to the pipe so as (1) to redirect light from the first light source that reaches the indentation after passing once through a plane adjacent the indentation, back through the plane and towards the first end; and (2) to sufficiently increase the average angular distribution of light reflected from the indentation and passing back through the plane as would cause at least 50 percent more reflections of the foregoing light within the pipe in the absence of the light-extraction structure. | 03-15-2012 |