Class / Patent application number | Description | Number of patent applications / Date published |
307118000 | Fluid pressure, density, level, velocity or humidity | 14 |
20110278954 | ELECTRONIC APPARATUS AND METHOD FOR CONDITIONALLY POWER SUPPLYING - An electronic apparatus for conditionally power supplying is provided. In the electronic apparatus, an external connection port is embedded on a surface of a case for electrically connecting to an external device, and includes plural exposed terminals including one power pin. First and second detection electrodes are disposed on the surface of the case and normally maintain in broken-circuit. When the first and the second detection electrodes are in a wetting condition, the first and the second detection electrodes are in short-circuit. A switch is electrically connected to a power module and the power pin. A control module detects that the first and the second detection electrodes are in short-circuit or in broken-circuit, and drives the switch to make the power module output power to the power pin when the first detection electrode and the second detection electrode are in broken-circuit. | 11-17-2011 |
20130088094 | APPARATUS AND METHOD FOR CONTROLLING POWER IN PORTABLE TERMINAL - An apparatus performs a power control method for a portable terminal. The power control method includes measuring humidity around the portable terminal using a humidity sensor, and determining whether a flooding condition occurs based on the measured humidity. The method also includes turning off power of the portable terminal by releasing a connection with a battery that supplies power to the portable terminal when it is determined that the flooding condition occurs. | 04-11-2013 |
20130140912 | SOLID STATE BILGE PUMP SWITCH - A switch for a bilge pump of a boat includes a pair of probes for providing a probe signal indicating the presence of fluid at the probes, a current sensor for providing a sensor signal indicating electric current of the pump; and a controller programmed to energize the pump when a threshold level of the probe signal indicates the presence of fluid and to de-energize the pump when a threshold level of the sensor signal indicates that the pump is not pumping fluid. The controller can also be programmed to dynamically change the threshold level of the probe signal based on a prior probe signal that indicates changing probe conditions. | 06-06-2013 |
20140015342 | Printed hydrostatic versatile multiple liquid level switch - A liquid level switch is provided having a first elongated substrate having one, two or three or more pairs of elongated electrical conductors thereon, a second elongated substrate having one two or three or more electrically conductive areas thereon, each electrically conductive area being positioned over an associated pair of electrical conductors positioned on the first elongated non-electrically conductive substrate for enabling electrical bridging contact between conductors of the pairs of electrical conductors, and a substrate coupler is provided for coupling the first and second non-electrically conductive substrates together for providing separation of the non-electrically conductive substrates in the absence of hydrostatic pressure thereon, and for causing contact between the first and second non-electrically conductive substrates in the presence of hydrostatic pressure thereon, producing the electrical bridging contact between pairs of conductors on the first non-electrically conductive substrate, in turn producing multiple level output signals. | 01-16-2014 |
20140103740 | Power Shutdown Apparatus for Preventing Overheating of Hot Beverage Machine - The present invention provides a power shutdown apparatus for preventing overheating of a hot beverage machine, comprising a tubular section protruding upward from a bottom of a water tank of the beverage machine and penetrating in top-down manner, a floating pipe inside the tubular section, a magnet within the floating pipe, a limiter attached to an upper opening of the tubular section without covering the tubular section to allow water to be poured in; a sensor at the bottom portion of the tank and adjacent to a sinking portion of the floating pipe; and wherein the floating pipe inside the tubular section sinks correspondingly with a lower water level of the water in the tank to drive the magnet inside the floating pipe to activate the sensor on one side thereof such that power of the heating device of the tank is shut down to prevent overheating of the machine. | 04-17-2014 |
20140203665 | LIQUID ACTIVATED FAILSAFE FOR PORTABLE COMPUTING DEVICES - The described embodiments relate generally to portable computing devices such as notebook computers and more particularly to failsafe mechanisms designed to prevent electrical shorts in the event that a portable computing device comes in contact with a liquid. A plurality of liquid sensors can be positioned within a computing device and electrically coupled to a controller. The controller can respond to varying amounts of liquid by immediately decoupling the system electronics from the power supply, performing a controlled shut-down of the computing device, or taking no action. In some embodiments, the controller can also limit the ability of a user to reactivate the computing device following a spill until any remaining liquids are removed from the computing device. | 07-24-2014 |
20140312713 | Depth-Activated Sensor Switch and Method - A switch for a marine seismic sensor. The switch includes a bellows having a closed end, a side portion and an open end, wherein the side portion connects the closed end to the open end, the closed end includes a conductive surface, and the side portion acts as a spring; a base plug that includes first input and first output contacts on a first side and second input and second output contacts on an opposite side; and a plug located in the open end of the bellows and configured to form a chamber, inside which the second input contact and the second output contact are provided. The conductive surface short-circuits the second input contact and the second output contact when a pressure larger than a predetermined pressure (P) acts on the conductive surface. | 10-23-2014 |
20140319931 | FLUID RESERVOIR LEVEL DETECTION SYSTEM - A fluid level detection device comprising an elongated shaft having a plurality of sensors and associated switches on a distal end thereof. The distal end of the shaft extends into a liquid reservoir with the switches configured to detect multiple predetermined fluid levels. The first fluid level detected is a warning level indicating that the level of fluid in the reservoir is low and results in a warning indication. The second fluid level detected is for a shutoff threshold that results in shutdown of the device using the fluid in the reservoir and a shutdown indicator. | 10-30-2014 |
20150348386 | PNEUMATIC DETECTION USING A LIQUEFIED COMPRESSED GAS - A pneumatic detection system and a method of forming the pneumatic detection system are described. The system includes a sealed tube, a refrigerant disposed within the sealed tube, and a switch configured to be activated based on a specified pressure being reached within the sealed tube. | 12-03-2015 |
20150372479 | COMPONENT PROTECTING DEVICE AND SAFETY CIRCUIT - A component protecting device includes a water-triggered conduction circuit and a switch circuit. The water-triggered conduction circuit includes a first conductor and a second conductor for coupling to a cathode of a power supply. The first conductor is not in contact with the second conductor, and the first and second conductors are configured to be conductively connected to each other by a conductive medium. The switch circuit includes an output terminal for coupling to a positive input terminal of a component to be protected, a first input terminal for coupling to an anode of the power supply, and a second input terminal coupled to the first conductor of the water-triggered conduction circuit. | 12-24-2015 |
20160004283 | Electronic Devices with Submersion Detection Circuitry - A portable electronic device may include submersion detection circuitry for detecting when the electronic device is submerged in water or other liquids. The submersion detection circuitry may include a barometric pressure sensor that gathers air pressure information. Control circuitry in the electronic device may monitor the air pressure sensor for sharp changes in air pressure indicating that the electronic device has been dropped or submerged in water. Various actions may be taken in response to determining that the electronic device is in water. If the electronic device is not intended to operate underwater, a power management unit may automatically power down electrical components in the electronic device in response to determining that the electronic device is in water. If the electronic device is intended to operate underwater, control circuitry may determine and track a water depth level at which the electronic device is submerged based on the air pressure information. | 01-07-2016 |
20160035520 | PRESSURE SWITCH WITH TEMPERATURE ENABLE FUNCTION - The present invention describes systems and methods of providing a pressure switch with temperature enable function. An exemplary embodiment of the present invention includes a pressure sensor for providing a pressure signal having a first voltage level that is proportional to a pressure applied to the pressure sensor; a temperature sensor for providing a temperature signal having a second voltage level where the second voltage level is proportional to a temperature measured by the pressure sensor; and a control circuit for receiving the pressure signal from the pressure sensor and the temperature signal from the temperature sensor and activating a load when the first voltage level exceeds a threshold voltage level. | 02-04-2016 |
20160149395 | LIQUID LEVEL CONTROL SWITCH DEVICE AND THE CONTROL CIRCUIT THEREOF - A liquid level control switch device includes a liquid level sensor and a contactor, in which the liquid level sensor includes a liquid level electrode, a casing, a control circuit board and a power supply lead wire, in which the liquid level electrode and the control circuit board are electrically connected and the control circuit board transmits measurement pulse signals, in accordance with the sampling frequency, to the liquid level electrode and collects the liquid level signals sensed by the liquid level electrode; and the contactor is arranged in the casing, and a coil of the contactor is electrically connected with the control circuit board, which controls the closing and opening operations of the contactor, according to the collected liquid level signals. | 05-26-2016 |
20160252413 | Bulk Amorphous Alloy Pressure Sensor | 09-01-2016 |