| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | System to detect anomalous fluids in an SCR system | US13518681 | 2010-12-08 | US08850796B2 | 2014-10-07 | Philippe Lucien Valmy Georis |
| A system for a fluid tank for storing a urea solution in a motor vehicle, the system including a first float having a first density and a second float having a second density, the first and second floats being movably arranged on a guide in the fluid tank, the first density is less than a density of the urea solution at a reference temperature but greater than a density of water at the reference temperature, and the second density is less than the density of water at the reference temperature. The system further includes a control system configured to receive signals indicative of a level of the floats, and to generate an anomaly signal in response to detecting sinking of the first float and floatation of the second float. | ||||||
| 102 | Portable Fluid Level Alarm System | US14216328 | 2014-03-17 | US20140266745A1 | 2014-09-18 | Kenneth Shea Middleton |
| A portable solar-powered fluid level alarm system which uses a fluid level sensor electrically connected to electronic controls in a control box. The control box is mounted on an elongated member extending from a base which holds the system upright. The electronic controls within the control box operate up to four different alarms, including an audio alarm, a visual alarm, a remote notification signal via a global positioning system (“GPS”), and a remote notification signal via Voice over Internet Protocol (VoIP). The alarm system is also a keyed system so that once an alarm sounds only authorized personnel may deactivate it. | ||||||
| 103 | APPARATUS FOR INDICATING THE FILLING LEVEL OF A DRINKING VESSEL | US13683410 | 2012-11-21 | US20130137490A1 | 2013-05-30 | Alexander Quehl |
| The invention relates to an apparatus on which a drinking vessel may be placed, in particular an apparatus which provides information, wherein the information is connected with the drinking vessel. An apparatus for indicating the filling level of a drinking vessel comprises a placement device on which the drinking vessel is placed, a detection device for detecting the filling level of the drinking vessel (200), and a display element which displays the detected filling level. | ||||||
| 104 | Fluid Level Detector and Alarm Apparatus | US10575850 | 2004-10-18 | US20070229303A1 | 2007-10-04 | Willliam Collier |
| A fluid level detector and alarm apparatus for detecting a fluid level in a liquid receiving open-top vessel such as sinks, tubs and the like, comprising: a housing being connectable to the vessel so as to be positioned within the vessel. A sound emitter is positioned within the housing, the sound emitter being actuatable to emit a sound alarm. A circuit interconnects the sound emitter to the power source and has opposed ends emerging out of the housing. A floater unit has a conductive member thereon and is operatively connected to the housing so as to be displaceable with respect to the housing to a contacting position in which the conductive member contacts the opposed ends of the circuit to actuate the sound emitter, whereby the floater unit is displaced to the contacting position by buoyant forces exerted on the floater unit as a result of the fluid level in the vessel reaching the predetermined level, such that a sound alarm is emitted. | ||||||
| 105 | Liquid level alarm | US11178468 | 2005-07-12 | US20070013536A1 | 2007-01-18 | Huang-Lin Wang |
| A liquid level alarm is placed in a tank having a bottom and has a weight, a floating box, an alarm circuit and a cord. The weight is placed on the bottom of the tank. The floating box has a top recess, a passage, a slide and a top cover. The passage communicates with the top recess. The slide is mounted slidably in the passage. The alarm circuit is mounted in the top recess in the floating box and has two contacts, an alarm element, a switch and a spring. The switch is connected to the slide. The spring is connected to the top cover and holds the switch open. The cord is connected to the weight and the slide. When the floating box moves above a predetermined level, the switch with the slide moves down and makes contact with the contacts to activate the alarm element. | ||||||
| 106 | Vessel with integrated liquid level sensor | US10813816 | 2004-03-31 | US20050217369A1 | 2005-10-06 | Kenneth Holappa; Lin Mu |
| A capacitive liquid level sensor is integrated with a drinking vessel or the like, and provides a sensory output signal having a characteristic that varies as a function of liquid level in the vessel. The vessel can have a hollow wall with conductive plates placed or affixed on a back surface of an inner wall panel of a hollow wall or protected by a handle. The plates form a capacitor for which liquid displacing air in the vessel provides at least part of the dielectric. A timing circuit is responsive to the capacitance of the plates, which changes when the liquid level displaces air from around or between the plates and changes the effective dielectric constant. The circuit can produce a preferably non-visual signal that varies over a range of liquid levels, or can change when the level passes a threshold level. | ||||||
| 107 | System for monitoring water within a bathtub | US10777513 | 2004-02-11 | US20050174245A1 | 2005-08-11 | Thomas Delaney; Jennifer Delaney |
| This invention is directed to a system capable of indicating to a user that a desired water temperature and/or the water level within a bathtub have been reached. The system includes a water sensor so that as the running water fills the bathtub, the system may activate an alarm if the water sensor detects the water at a predetermined level within the bathtub. This may assist in preventing the water within the bathtub from overflowing. The system may also include a temperature sensor to monitor the temperature of the water in the bathtub so that if the temperature of the water reaches a predetermined temperature, the system may sound an alarm as well. The system includes a transmitter that sends a signal to a receiver to notify to the user that the alarm has been activated. The receiver may be remote from the transmitter to allow the user to carry the receiver. The receiver may be also communicably coupled to a lighting device, such as a lamp, to turn on or off the light to indicate to the user that the alarm has been activated. | ||||||
| 108 | Accumulating whistling vent | US10375240 | 2003-02-27 | US20030140841A1 | 2003-07-31 | Murray Hawkins |
| An accumulating whistling vent for indicating a level of liquid in a tank having a vent line is disclosed. The whistling vent includes a whistle housing reservoir which has mounting tubes extending from either ends. A whisle is housed in the whistle housing reservoir by insertion into one of the mounting tubes. The whistling vent is coupled between the vent line of the tank such that the tube containing the whistle is closest to the tank. As liquid is introduced into the tank an audible signal is produced by the whistle. Once full, air flowing from the tank through the vent line is replaced by the incoming liquid, thus muting the whistle. Excess liquid is accumulated in the reservoir prior to discharge from the vent line, thereby providing additional time to respond to the change in audible signal. In a preferred embodiment of the invention, a transparent reservoir is used to provide a visual indicator in addition to the change in audible signal. In another preferred embodiment of the invention a fuel filter and brass key chain whistle are used to minimize manufacturing costs. | ||||||
| 109 | Water alarm for sensing a level of water in a tub | US09796849 | 2001-03-01 | US20020121982A1 | 2002-09-05 | Susan Ferris; Alma Phipps; John Sinisi; Robert Bernhard |
| An integrated device for detecting a desired level of water in a tub, hot tub, sink or the like. The device incorporates a water sensor, sound processor and speaker into a housing that has the outward appearance of a whistle. The device mounts to a vertical side of the tub or other water container by a swiveling suction cup which allows the water sensor incorporated in the bottom of the device to remain level with respect to a rising surface of water. Upon the detection of the water level by the water sensors, the sound processor generates a varying series of sounds to alert a user. The varying sounds provide the user with information concerning the time that has passed since the initial detection of the water level. | ||||||
| 110 | Modular overfill alarm assembly for vented storage tanks | US507090 | 1995-07-26 | US5898376A | 1999-04-27 | R. Michael Webb |
| A modular overfill alarm assembly is constructed and arranged to be installed in-line with a vent pipe in a vented storage tank for liquids such as waste oil or gasoline. The alarm assembly includes a vent tube having an open lower end that is threaded to be mounted to a vent opening in a vented storage tank, and an open upper end that is threaded to have a vent pipe mounted thereto, so that the vent pipe may be communicated with the vent opening as it would if it were threaded directly into the opening. The assembly further includes a support bracket mounted to the vent pipe and vent tube for supporting a commercially available alarm for actuating the alarm. | ||||||
| 111 | Spraying system with low liquid level warning | US384260 | 1995-02-03 | US5553780A | 1996-09-10 | Harlan T. Gjerde |
| A spraying system for providing a pressurized liquid spray for cleaning purposes is mounted on a vehicle for use outdoors. The system includes a liquid storage tank, a spray device for directing a spray of liquid therefrom, and a liquid supply system for pumping liquid from the liquid storage tank and for providing such liquid under pressure to the spray device. A standpipe is located within the liquid storage tank, connected to the tank liquid outlet, having a liquid inlet spaced above the level of the tank liquid outlet by a short distance. As the liquid is drawn from the tank and eventually reaches the level of the standpipe liquid inlet, air will be entrained with the liquid as the liquid then continues to enter the standpipe, causing the spray to sputter or spit as it exits the spray device. This alerts the operator to a low level of liquid in the tank and comprises a warning that use of the spraying system should be discontinued until the liquid storage tank is refilled with liquid. The standpipe includes a bleed hole, spaced between the standpipe liquid inlet and the tank liquid outlet, for allowing some liquid to still flow to the pump assembly even if the liquid level drops below the standpipe liquid inlet. | ||||||
| 112 | Warning alarm device for an evaporative cooler | US941230 | 1992-09-04 | US5365220A | 1994-11-15 | Steven C. Rasmason |
| A warning device is disclosed for an evaporative cooler or swamp cooler. The alarm comprises a pair of closely spaced electrodes mounted at a desired position above the floor of a water reservoir in the evaporative cooler. During normal operation of the evaporative cooler, the electrodes are not submerged in the pater. Upon malfunction of the float valve in the water supply to the reservoir, uncontrolled amounts of water are added to the reservoir, and the water level rises. When the water level attains a specified depth, the electrodes become submerged in the water. An electrical circuit is associated with the electrodes, and when the electrodes become submerged in the water, the electrical circuit is closed. The closing of the circuit activates an audible alarm which can be heard by inhabitants in the building being served by the evaporative cooler. Preventive maintenance can then be undertaken before extensive damage is done by water overflowing from the water reservoir of the evaporative cooler. | ||||||
| 113 | Level sensor and alarm | US342090 | 1989-04-24 | US4987409A | 1991-01-22 | Ronald E. Jackson |
| An alarm system is disclosed for use with a water softener including a salt-brine tank containing a bed of salt. The alarm system includes a sensor situated in the salt-brine tank on the top of the bed of salt, an electronic circuit including an alarm, and an input for connecting the circuit to the sensor. The sensor is responsive to direct contact with the brine for operating the circuit to initiate the alarm in the event the top of the bed of salt drops below a preselected level or the brine rises above another preselected level. | ||||||
| 114 | Audible low-fuel alarm for propane fuel tank | US804526 | 1985-12-04 | US4688028A | 1987-08-18 | Sidney H. Conn |
| An audible low-fuel alarm (50) for a pressurized propane fuel tank is disclosed. A Hall-effect sensor (57) is mounted in relation to a magnet (35) which is rotated in response to the level of fuel within the propane tank. When magnet (35) is rotated to a position to indicate a low fuel condition, the Hall-effect sensor (57) activates a buzzer 53. A mercury switch (55) prevents false low fuel alarms and conserves battery power during inflation of the balloon envelope. | ||||||
| 115 | Liquid level sensor and alarm system | US158288 | 1980-06-10 | US4379434A | 1983-04-12 | Petur Thordarson |
| A float is moved upwardly or downwardly by liquid being added to a liquid holding tank. The float carries a first permanent magnet which is moved by the float towards a second magnet which is separated therefrom by a liquid tight partition. The permanent magnets are arranged with like poles directed towards each other so that the permanent magnets will repel each other and movement of the first permanent magnet in response to a liquid level change will cause the second permanent magnet to be moved in response to the repelling force. The second permanent magnet is positioned in line with a depressable control member of a normally closed valve in a gas line. Movement of the second permanent magnet against such control member depresses the control member to open the valve, allowing gas to flow from a storage tank to a piston in a normally closed valve that is located in a second line leading from the gas supply to a horn. The gas pressure moves piston to open the valve and allow a flow of gas to operate the horn. | ||||||
| 116 | Signalling device for mobile tank vehicle | US52410866 | 1966-02-01 | US3385257A | 1968-05-28 | MADSEN PETER A |
| 117 | Combined audible signal and visual gauge | US21637562 | 1962-08-13 | US3137168A | 1964-06-16 | SCULLY FRANK P |
| 118 | Liquid level signal device for tanks | US19617562 | 1962-05-21 | US3136295A | 1964-06-09 | GRAMO PHILIP R |
| 119 | Signaling filler pipe | US71944458 | 1958-03-05 | US2935099A | 1960-05-03 | HAYNES WILLIAM R |
| 120 | Adjustable intrusion tube for use with whistling signalling device | US33546453 | 1953-02-06 | US2759489A | 1956-08-21 | SCHUTTER GEORGE M |
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