Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7821412 | Smoke detector A smoke detector replaces the americium source of alpha particles with a field emission device using carbon nanotubes as the field emitters, or some other field emitter, in order to provide an ionization of the air potentially caring smoke particles through the smok... | 10/26/2010 |
| 7443307 | Christmas tree ornament hazard detector This is a Christmas tree ornament that will alert a homeowner or business owner to the presence of excessive amounts of smoke or heat and sound an alarm. In order for the device to be relatively hidden on the tree, an ornament such as an angel may be placed on top o... | 10/28/2008 |
| 7405672 | Air treatment device having a sensor An air treatment device having electrodes supported by a housing and a voltage generator operatively coupled to the electrodes. The air treatment device includes at least one sensor operatively coupled to the voltage generator for sensing a condition and providing s... | 07/29/2008 |
| 7378976 | Night light and alarm detector This invention relates to providing convenient night and pathway lighting this is integrated into a detector unit. Incorporating the illumination features into the detector unit provides the possibility to simplify the installation, utilize the backup battery power ... | 05/27/2008 |
| 7369057 | Power generator and power generator auxiliary monitoring A generator monitoring system and method includes a plurality of sensors (12) disposed within a generator enclosure (18) to sense health conditions of a generator (10) housed within the enclosure. The sensors are interconnected to provide a sing... | 05/06/2008 |
| 7335885 | Ultra low power NDIR gas sensor fire detector A fire detector and method for generating an alarm signal in response to a fire uses an NDIR sensor to generate a detector signal based upon one or more absorption bands selected from the 15.1μ absorption band of CO2, the 6.27μ absorption band of H2O and the 4.67Î... | 02/26/2008 |
| 7332067 | Process for the preparation of α-substituted carboxylic acids from the series comprising α-hydroxycarboxylic acids and n-substituted-α-aminocarboxylic acids A process for the preparation of α-substituted carboxylic acids from the series including α-hydroxycarboxylic acids and N-substituted-α-aminocarboxylic acids by cathodic carboxylation with carbon dioxide of a compound corresponding to the general formula R1 | 02/19/2008 |
| 7312714 | Ambient condition detector with time delayed function An ambient condition detector includes a time delay function whereby a user initiates a functionality test of the detector and has time to move away from the vicinity of the detector before a potentially hearing damaging, audible report is issued from the detector u... | 12/25/2007 |
| 7295128 | Smoke detection methods, devices, and systems The present invention is directed to a system and method for accessing home monitoring devices remotely via a distributed wide-area network (WAN). More specifically, the present invention is directed towards a smoke detector system, which monitors for the presence o... | 11/13/2007 |
| 7287738 | Remotely attachable and separable coupling An article for mounting from or against the ceiling is removably coupled to a base fixedly secured to the ceiling, by a person standing on the floor, supporting the article on an elongated rod, and thrusting the article against the base to couple the article and the... | 10/30/2007 |
| 7288750 | Light signaling device Light signalling device, in particular intended to be mounted on board an aircraft, includes a plurality of light elements mounted on a support and surrounded by a translucent cover, said device including a means of reflecting the light emitted by the light elements... | 10/30/2007 |
| 7283057 | Fire alarm spreading system and method A fire alarm spreading system includes a robot cleaner for generating fire alarm data when smoke is detected while patrolling a specific area and transmitting the fire alarm data; and a wireless communication base station for receiving the fire alarm data transmitte... | 10/16/2007 |
| 7268347 | Ion detecting apparatus and methods Ion injection in a drift tube apparatus for mobility spectrometry was accomplished without conventional ion shutters such as the Bradbury-Nielson or similar designs common to such drift tubes. Instead ions were passed between the ion source and drift region by using... | 09/11/2007 |
| 7262712 | Helicopter tactile exceedance warning system A helicopter tactile accedence warning system includes a control stick and a tactile warning device attached to the control stick. A computer or micro processor and a keyboard for entering a safe temperature profile are also provided as well as a thermocouple for me... | 08/28/2007 |
| 7262705 | Recessed detector assembly for detecting and venting airborne substances A recessed detector assembly having the capability to detect and evacuate air laden with airborne substances from within the assembly. The assembly includes a detector frame adapted to be flush mounted into a mounting box mounted in a ceiling or a wall, the frame ha... | 08/28/2007 |
| 7259665 | Battery backed service indicator aids for field maintenance A self-contained backup power source such as a battery is provided for components within an electrically powered device such as a storage controller, photocopier or the like, to maintain diagnostic status data and to power a service indicator aid, or diagnostic indi... | 08/21/2007 |
| 7237134 | Backup power module for industrial control and monitoring network A technique is provided for applying secondary or backup power to a networked device in the event of a loss or malfunction of network power. In a control and monitoring network. Various devices may receive both power and data signals from a network cable. In the eve... | 06/26/2007 |
| 7233253 | Multiwavelength smoke detector using white light LED A smoke detector includes a smoke detection chamber containing a white light LED and a light detector. The light detector detects light within at least two distinct optical wavelength bands, and generates respective signals indicative of the intensities of the detec... | 06/19/2007 |
| 7227452 | Apparatus to deter birds with ultrasound Birds carry many parasites and other diseases, which pose a health risk to humans which come into contact with their habitat. However, ultrasonic waves agitate and deter birds and other pests from roosting in nearby areas. The disclosed device utilizes solar energy ... | 06/05/2007 |
| 7196631 | Method of utilizing existing fire alarm systems and existing smoke detectors to detect aerolized radioactive material A method of utilizing existing fire panel infrastructure to fight terrorism. The fire alarm systems ionization type smoke detectors, in addition to detecting the presence of smoke, would also detect the presence of airborne radioactive particles by effecting only a ... | 03/27/2007 |
| 7196326 | Mass spectrometer and reaction cell for ion-ion reactions The invention relates to a reaction cell for reactions between different types of ion species and a related mass spectrometer to analyze the ion products. The invention consists in an RF-operated straight ion guide with a side inlet, particularly suitable for reacti... | 03/27/2007 |
| 7186979 | Passive NDIR carbon dioxide sensor fire detector A fire detector with a passive CO2 sensor generates a detector signal based upon a 15μ absorption band of CO2 and a signal processor generates an alarm signal when a preselected criterion is met. The passive CO2 sensor has a passive... | 03/06/2007 |
| 7176460 | Passive NDIR gas sensor fire detector A fire detector and method for detecting fires uses a passive NDIR sensor that generates a detector signal based upon either a 15μ absorption band of CO2 or a 6.27μ absorption band of H2O and a signal processor which receives the detector sig... | 02/13/2007 |
| 7167098 | Testing equipment for a fire alarm The present invention relates to testing equipment 20 for a fire alarm 1. It includes a testing pole (21), a range spacer (23) connected to the testing pole (21), and a reflective means and/or scattering means situated in the insid... | 01/23/2007 |
| 7154402 | Power strip with smoke detection auto-shutoff The invention is a power strip with an internal smoke detection device, which cuts off AC electrical power to attached electrical devices if smoke is detected. ... | 12/26/2006 |
| 7109874 | Smoke detectors A smoke detector unit (20) comprising a housing containing a smoke detector (24) and at least two component mounting boards, such as printed circuit boards, in a stacked arrangement, the housing having at least one air gap (34), wherein one of t... | 09/19/2006 |
| 7095329 | Radiation monitor for ease of use Provided is a nuclear radiation monitor which has a surface on which are located separate, visible indicia, such as LEDs or an LCD array, with the indicia being distributed around an imaginary closed loop, preferably of circular configuration. The monitor includes a... | 08/22/2006 |
| 7075646 | Smoke detectors particularly ducted smoke detectors The present invention relates to the detection of particles suspended in fluid particularly smoke detectors suitable for mounting on ducting for the early detection of smoke created by unwanted pyrolysis or combustion of materials in a protected area or fire zone to... | 07/11/2006 |
| 7057517 | Alarm network A wireless alarm network which detects smoke or toxic gas or fire or other abnormal environmental conditions within and in the vicinity of a structure wherein the detector at the source of the abnormal environmental condition emits an audible alarm and communicate t... | 06/06/2006 |
| 7049824 | Differential particulate detection system for electronic devices A method, apparatus and program product for differential particle detection in electronic devices is provided. A first particulate sensor is positioned in proximity to an air intake of the electronic device. A second particulate sensor is positioned in proximity to ... | 05/23/2006 |
| 7034703 | Ambient condition detector with time delayed function An ambient condition detector includes a time delay function whereby a user initiates a functionality test of the detector and has time to move away from the vicinity of the detector before a potentially hearing damaging, audible report is issued from the detector u... | 04/25/2006 |
| 7034701 | Identification of fire signatures for shipboard multi-criteria fire detection systems A multi-criteria fire detection system, comprising a plurality of sensors, wherein each sensor is capable of detecting a signature characteristic of a presence of a fire and providing an output indicating the same. A processor for receiving each output of the plural... | 04/25/2006 |
| 7030766 | Ambient condition detector with multi-function test A device with a multi-function test feature for assessing or directing multiple sensor functions is provided for monitoring and interrogating air flow through Heating/Ventilation/Air-conditioning (HVAC)-type ducts for changes to ambient conditions such as smoke, hea... | 04/18/2006 |
| 6998991 | Dual carbon monoxide sensor system with control catalyst: new CO and humidity method and apparatus The present invention is a new sensor system with catalyst for control and one with a dummy catalyst. An apparatus and method for rapidly determining the concentration of CO, water vapor, and temperature. One of the major reasons to rapidly determine a small but sud... | 02/14/2006 |
| 6995966 | Fire protection for electronics equipment A method and apparatus for fire prevention in electronic equipment utilizes infrared imaging technology to monitor a substantial region of an enclosure within the electronic equipment. For example, a shelf within a computer cabinet may have a lens and thermal sensor... | 02/07/2006 |
| 6975237 | System, controller and method of detecting a hazardous condition within an enclosure having a ventilation system A detection system is provided for detecting at least one hazardous condition in an enclosure including a ventilation system, where the ventilation system is capable of operating in either an on or off mode. The system includes at least one detector capable of detec... | 12/13/2005 |
| 6966694 | Electronic clinical thermometer An electronic thermometer contains inside its main body not only a temperature detecting device and a display device for displaying the measured body temperature but also a buzzer for outputting a warning sound. The buzzer is formed with a piezoelectric plate on an ... | 11/22/2005 |
| 6940402 | Method and apparatus for detection of a location of an event A method and apparatus for detecting the location of an event from amongst a plurality (A to P) of locations. Lines of communication (R1 to R4, C1 to C4), commonly pipes of a smoke detection system, cover the locations in such a fashion t... | 09/06/2005 |
| 6937104 | High speed high current gain operational amplifier An operational amplifier having a low impedance input and a high current gain output. The operational amplifier comprises: 1) a first N-channel transistor having a source coupled to the low impedance input of the operational amplifier; 2) a first constant current so... | 08/30/2005 |
| 6914533 | System and method for accessing residential monitoring devices The present invention is directed to a system and method for accessing home monitoring devices remotely via a distributed wide-area network (WAN). More specifically, the present invention is directed towards smoke detector system, which monitors for the presence of ... | 07/05/2005 |
