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Cleland, CA
Donald A. Cleland, Langford CA
| Patent application number | Description | Published |
|---|---|---|
| 20090001893 | Method and system for luminance characterization - A system for luminance characterization of a luminaire includes a ballast coil and a multi-tap capacitor connected in series with the ballast coil. The multi-tap capacitor has a plurality of tap capacitors integrated into a capacitor housing. A plurality of switches are each coupled to one of the plurality of tap capacitors for selectively coupling the tap capacitors together to produce a multi-tap capacitance corresponding to a configuration of the plurality of switches. A lamp is connected in series with the multi-tap capacitor and the ballast coil. A photometer is located to measure light intensity of the lamp and to produce a lumen output measurement. A memory is used to store a database having a plurality of lumen output measurements, each corresponding to a multi-tap capacitance corresponding to all configurations of the plurality of switches. | 01-01-2009 |
| 20110057570 | Method and System for Luminance Characterization - A system for luminance characterization of a luminaire includes a ballast coil and a multi-tap capacitor connected in series with the ballast coil. The multi-tap capacitor has a plurality of tap capacitors integrated into a capacitor housing. A plurality of switches are each coupled to one of the plurality of tap capacitors for selectively coupling the tap capacitors together to produce a multi-tap capacitance corresponding to a configuration of the plurality of switches. A lamp is connected in series with the multi-tap capacitor and the ballast coil. A photometer is located to measure light intensity of the lamp and to produce a lumen output measurement. A memory is used to store a database having a plurality of lumen output measurements, each corresponding to a multi-tap capacitance corresponding to all configurations of the plurality of switches. | 03-10-2011 |
Donald A. Cleland, Victoria CA
| Patent application number | Description | Published |
|---|---|---|
| 20090066258 | Streelight monitoring and control - Methods and apparatus associated with monitoring and controlling streetlights include monitoring light levels and voltage levels at corresponding streetlights and controlling the streetlights to set or maintain a particular light output at the respective streetlights or providing power consumption estimates for respective streetlights (streetlight specific metering) based on the voltage levels and light levels. A streetlight controller for a streetlight includes a microcontroller; a first sensor to sense a light level from a lamp within the streetlight; a second sensor operative to sense a voltage level on a power supply for the streetlight; and a switching network coupled with the microcontroller and operative to adjust the light level of the lamp. Methods includes monitoring a light level and voltage level and adjusting a light level, estimating power consumption, or facilitating maintenance in accordance with the light level and voltage level. The methods may be performed all or in part at a streetlight, a local gateway or a central controller and database. | 03-12-2009 |
Terry P. Cleland, Pickering CA
| Patent application number | Description | Published |
|---|---|---|
| 20080257311 | METHOD AND SYSTEM FOR STARTING OR RESTARTING AN INTERNAL COMBUSTION ENGINE VIA SELECTIVE COMBUSTION - A selective combustion starting system and method selectively provides a proper amount of fuel to one or more combustion chambers in an internal combustion engine. The particular combustion chambers selected depend upon the state of the piston of the combustion chamber and the volume of the combustion chamber, which is dependent upon the position of the piston. Once proper amounts of fuel have been provided to the one or more combustion chambers, the resulting fuel air mixture in the combustion chambers is ignited and combusts to rotate the crankshaft of the engine to commence normal operation of the engine. | 10-23-2008 |
| 20100190592 | Vibration Compensating Pulley - A pulley has a hub and a rim. The hub is configured to be mountable on a driving shaft. A driving connection between the hub and rim is provided. In a first embodiment, a drive mechanism is operable to configure the rim between a circular profile and a non-circular profile. The non-circular profile produces a counteracting torque to offset load torques produced by the engine. The drive mechanism can be electrical, inertial, hydraulic or any combination thereof. In a second embodiment, the rim is fixed with a non-circular profile. | 07-29-2010 |
| 20100218588 | System and Method for Calibrating an Absolute Position Sensor - A system and method for calibrating an absolute angular position sensor and/or for providing pre-calibrated absolute angular position sensors comprises comparing, at a pre-elected number of angular positions, the angular position derived from the output of the sensor to the angular position reported by a reference sensor. The difference between the two outputs is used as an error correcting factor for the respective position. In addition to calibrating the sensor to reduce sensor errors, the calibration can also be used to determine the sensor output corresponding to an index position of interest. | 09-02-2010 |
| 20100235138 | Engine Flexible Drive Elongation Measurement - A system and method is provided for determining changes in the angular position of a driven pulley, with respect to a driving pulley, when the driven and driving pulleys are synchronously linked by a flexible drive member such as a toothed belt or a chain. From these determined changes in the angular positions, the system and method can determine the condition of the flexible drive member and can output an appropriate signal when the condition of the flexible drive member has exceed a pre-defined value. Further, the system and method can detect a variety of other undesired conditions in the operation of an engine and/or the relative angular position information can be used to alter operation of the engine to improve the engine's operating efficiency and/or reduce the emissions created during operation of the engine. | 09-16-2010 |
Terry Paul Cleland, Beeton CA
| Patent application number | Description | Published |
|---|---|---|
| 20090266221 | SNARE MECHANISM FOR A SNARE DRUM - An internal mechanism for a musical instrument snare drum that supports the snares and allows adjustment of the snare strands in tension as well as relative position to the vibrating member or head of the drum is provided. The mechanism has a support beam that gives a stiffer and more stable base for increased accuracy of all adjustment. The support beam also provides increased guiding for the snare holders during the tension adjustment of the snares. The adjustment of the position of the snares in relation to the vibrating member or drum head is accomplished by deflecting the strands with a bridge like arrangement providing precise placement of the strands for optimum performance. | 10-29-2009 |
Thomas William Cleland, Sharon CA
| Patent application number | Description | Published |
|---|---|---|
| 20120187766 | Device and Method For Improving The Performance Of An Inverter In A Photovoltaic System - In one embodiment, a photovoltaic (PV) power generation system includes a plurality of PV arrays configured to convert received light into electricity, a double conversion device, wherein the double conversion device is coupled to the plurality of PV arrays, and an inverter, wherein the inverter is coupled to the double conversion device. In an exemplary embodiment, the double conversion device is a DC-DC converter. | 07-26-2012 |