| RANCO INCORPORATED OF DELAWARE Patent applications |
| Patent application number | Title | Published |
|---|
| 20090317755 | Hot Surface Igniter Adaptive Control Method - An adaptive gaseous fuel ignition control method for use in consumer and commercial appliances that reduces stress on and increases the life of a hot surface igniter without resulting in a failure to ignite condition is provided. The method provides a preheating period, a full temperature period, and a trial for ignition period. The preheating period gradually increases the power applied to reduce the stress resulting therefrom. Once a gas valve has been commanded open, the controller monitors the time for ignition of the gaseous fuel. If the time is longer than a threshold, either the applied power or the period of time during which the power is applied is increased to shorten the time. If, however, the ignition period is shorter than the threshold, either the power applied or the period of time during which the power is applied before commanding the gas valve open is lowered or shortened. | 12-24-2009 |
| 20090134993 | Thermostat With Audible Interconnect To Threat Detectors - A thermostat for controlling a heating, ventilating and air conditioning (HVAC) system based an audible warning signal is provided. The thermostat comprises a microphone and an electronic circuit. The microphone senses the audible warning signal and generates an electrical signal corresponding to the audible warning signal. The electronic circuit is operably coupled to the microphone. The electronic circuit instructs the HVAC system according to the electrical signal. As such, the HVAC system is controlled based upon the audible warning signal. | 05-28-2009 |
| 20080280551 | Garage and Outbuilding Safety Ventilation System - A ventilating system for a garage is provided. The ventilating system comprises an automatic garage door opening mechanism and a hazardous gas detector. The automatic garage door opening mechanism is configured for wireless communication and to move a garage door between an open position and a closed position. The hazardous gas detector is configured for wireless communication and to sense the presence of a hazardous gas within the garage. The hazardous gas detector wirelessly instructs the automatic garage door opening mechanism to move the garage door to the open position when the hazardous gas reaches a predetermined level in the garage. As such, the garage is ventilated. | 11-13-2008 |
| 20080217419 | Communicating Environmental Control System - A communicating environmental control system for a dwelling or building is provided. The environmental control system is intended for use in a dwelling which may be unoccupied for a long period of time, e.g., months. The control system operates in an economy mode to prevent damage to the dwelling and its contents by avoiding condensation of moisture within the dwelling. At the same time, the control system minimizes operating costs by running more when energy costs are lower and running less when energy costs are higher. The control system switches to a comfort mode when the dwelling occupants return. The control system is in communication with a remote owner, a remote utility, or a remote service provider, or more than one of these, through the Internet or other communication system. | 09-11-2008 |
