| CUBE INVESTMENTS LIMITED Patent applications |
| Patent application number | Title | Published |
|---|
| 20100162513 | Central vacuum cleaner control, unit and system with contaminant sensor - A central vacuum cleaning system 3 has a central vacuum unit 17 with a motor 10, a motor compartment 19, and a vacuum chamber 25. The system 3 also has a control circuit 1 for controlling power to the motor 10, and one or more airborne contaminant sensors 15 for sensing contaminants within the system 3. The sensors 15 may be located in pipes 31 motor compartment 19, vacuum chamber 25 and hose handle 34. Vacuum air may be drawn through aperture 37 in wall valve 38. | 07-01-2010 |
| 20090139325 | Capacitive probes and sensors, and applications therefor, and multimode wireless devices - Sensor includes electrodes on internal layer of multilayer printed circuit board, and sensing circuitry drives electrodes and reads signal having characteristic based upon capacitance between electrodes. Board may have first layer second layer, with electrodes between layers. One layer may be thicker than other layer such that capacitance external to board is primarily contributed from adjacent other layer. Electrodes may be on internal surface and sensing circuitry may be on opposing external surface. Components for sensing circuitry may be assembled to board such that board and components are multilayer printed circuit board assembly. Circuitry having wireless transmitter and wireless receiver, wherein circuitry has operating mode to transmit signals remotely through transmitter and ship mode wherein transmitter is silenced, and in operating mode circuitry listens for signals indicating transmitted signal has been received, and if receiver has not received acknowledgement one signal then circuitry enters ship mode. | 06-04-2009 |
| 20080301903 | Cleaner Handle and Cleaner Handle Housing Sections - Handle has status indicators viewable by operator while viewing location being cleaned and using handle in ordinary cleaning position, and light illuminating location being cleaned. Indicators are LED lamps. Light is an LED lamp. Microphone senses particles and illuminates an indicator. Indicators and light are provided in a housing section that forms part of a housing for handle. Housing section may be integrated with the remainder of the housing, or may be unit that fits into remainder of housing. Light has central axis generally parallel, within approximately five degrees from parallel, with cleaning axis of handle. Indicators each have a central axis generally parallel, within approximately 5 degrees from parallel, with cleaning axis of handle. The indicators have limited beam angle. Indicator viewable over grasping section of handle from towards distal end of handle. The cleaner may be a vacuum cleaner, which may be a central vacuum cleaner. | 12-11-2008 |
| 20080222836 | Central vacuum cleaning system control subsytems - A central vacuum cleaning system control subsystem for use in a central vacuum cleaning system having a motor includes a central vacuum unit control module with a receiver for wirelessly receiving command signals, and a power stage for controlling the motor in accordance with command signals received through the receiver. The control module is stable in high ambient temperature. Current flowing to the motor is sensed, and motor overcurrent and undercurrent conditions are determined. The control module determines when the motor is in an overcurrent condition. Power stage has a triac for controlling power to the motor. The control module also has a microprocessor that compares the current sensed against a normal operating current to determine overcurrent condition. Power to motor ceases when overcurrent condition exists. A generator is powered by air flow in a cleaning system for production of electrical energy. | 09-18-2008 |
