Chubb International Holdings Limited Patent applications |
Patent application number | Title | Published |
20110309618 | ELECTROMECHANICAL ENERGY HARVESTING SYSTEM - A method of electromechanical energy harvesting includes sensing electrical current generated by relative movement of a coil and a magnetic flux source produced by movement of a cantilevered beam in response to ambient vibration energy, determining a vibration characteristic of the ambient vibration energy, and adjusting an effective flexible length of the cantilevered beam as a function of the vibration characteristic and the sensed electrical current. | 12-22-2011 |
20100288517 | Pneumatic Flow Control Valve for Fire Suppression Over Pressure Prevention - A controlled pressure release valve includes a valve body having a gas inlet for connection to a gas container and a gas outlet for delivering gas to a protected area. The controlled valve comprises a slidable spool housed in the valve body that is slidable between a first position and a second position. The slidable spool has a first end and a second end. A primary flow passage connects the gas inlet and the gas outlet and increases with lineal movement of the slidable spool. The sliding spool is biased towards the first position by a gas pressure applied by the second chamber and a spring. | 11-18-2010 |
20090086022 | Method and device for consistent region of interest - The present invention describes a system and method for surveillance cameras that maintain proper mapping of a mapped region of interest with an imaged region of interest based on feedback received regarding the current orientation of a surveillance camera. The system or method first determines the location of the imaged region of interest within the surveillance camera's imaged current field of view based on mechanical or imaged feedback, or a combination of both. The system or method then remaps the mapped region of interest within the surveillance camera's imaged current field of view such that the mapped region of interest is coextensive with the imaged region of interest. | 04-02-2009 |
20090079200 | Electromechanical Energy Harvesting System - An ambient energy harvesting system, and method of use thereof, includes a magnetic flux-generating assembly ( | 03-26-2009 |
20090040303 | Automatic video quality monitoring for surveillance cameras - A system for automatically determining video quality receives video input from one or more surveillance cameras ( | 02-12-2009 |