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| Number | Title | Issue Date |
| 7508312 | Apparatus and method for determining a fluid level within an enclosed container A method and apparatus for determining a fluid level within an enclosed housing. The present invention provides an enclosed housing having a dynamic fluid level contained therein. The apparatus includes an electromagnetic radiation source for directing electromagnet... | 03/24/2009 |
| 7418861 | Mechanically self actuated liquid level sensor A liquid level sensor for measuring liquid levels in underground and above ground containers includes a frame formed to have an elongate hollow tubular configuration that encloses a cavity. A cam pivot has an end extending into the cavity from a first inner wall por... | 09/02/2008 |
| 7417552 | Flood alarm A flood alarm is disclosed. In an illustrative embodiment, the flood alarm includes a float assembly and a telephone system interface module connected to the float assembly. A method of indicating a flood in a structure is also disclosed. ... | 08/26/2008 |
| 7369055 | Water softener monitoring system A system for monitoring the level or amount of a material within a container is provided. The system includes a detection mechanism that can be a direct detection mechanism or any of a number of indirect detection mechanisms. When the detection mechanism senses an u... | 05/06/2008 |
| 7358456 | Swimming pool touchpad A sealed two-plate swimming pool touchpad construction that is unaffected by pressure, in which a resilient, compressible, non-conductive spacer material such as rubber tubing is seated in an array of spaced recesses or grooves on the inside face of the rear plate t... | 04/15/2008 |
| 7315250 | Electrical fluid activated switch An electrical field activated switch system includes a fluid container 14 having an aperture formed in a sidewall thereof. The floor of the primary tray 22 is positioned entirely beneath the fluid container and a secondary tray is positioned entirely w... | 01/01/2008 |
| 7265677 | External device indicating that a tank is filled up System for indicating when a tank is full. The system includes a signal and control box. A container is connected to the tank. The container has a base, a float, an upper portion, and a lower portion. An orifice is arranged at the upper portion of the container. The... | 09/04/2007 |
| 7216537 | Fiber optic flammable liquid measuring system An optical liquid measuring system for measuring the amount of flammable liquid in a storage tank consisting of a pair of encoder disks that are operatively connected to a pair of floats through a pair of pulley systems. The floats are designed so that the first flo... | 05/15/2007 |
| 7182419 | Out of ink signal mechanism for an inkjet printer An out of ink signal mechanism for an inkjet printer having at least one inkbag is disclosed. The signal mechanism includes a printed circuit board having a circuit associated with each inkbag, a contact spring and at least one lifter. The contact spring is biased t... | 02/27/2007 |
| 7178178 | Inductive peripheral A peripheral device for a spa makes use of inductance for power and/or control. In an embodiment, a peripheral device includes a magnetic field source positioned in a region on an externally facing side of a spa shell and configured to generate a first magnetic fiel... | 02/20/2007 |
| 7174720 | Cooker utilizing a peltier device The present invention includes an appliance that has a cook vessel and a Peltier device. The Peltier device may have a motive heat distribution system on its waste side. The active side of the Peltier cools and heats the cook vessel in the absence of a motive heat d... | 02/13/2007 |
| 7140314 | Stand-up type personal watercraft A stand-up type personal watercraft is disclosed. The stand-up type personal watercraft typically includes a body including a hull and a deck covering the hull from above and being provided with a foot deck on an upper surface of a rear portion thereof to allow a ri... | 11/28/2006 |
| 7129832 | High/low level alarm controller A high/low level alarm controller having ability to interface with level sensing equipment and instrumentation in a manner that isolates the controller from downstream components is presented. The controller accepts power, logic and transduced level inputs; output f... | 10/31/2006 |
| 7121140 | Liquid quantity sensing device A liquid quantity sensing device which can easily and accurately measure liquid quantity stored in a container is disclosed. It utilizes an infrared ray or a supersonic sensing element associated with a float placed in the measuring tube and an electrical circuit bo... | 10/17/2006 |
| 7116236 | Oil tank sight glass monitor An oil tank sight glass monitor comprising a housing having an opening therein sized to receive the sight glass of an oil tank; an emitter for emitting a beam of light, the emitter being mounted to the housing on one side of the opening so that the beam of light is ... | 10/03/2006 |
| 7111510 | Liquid level detection device A liquid level detecting apparatus having detachable terminals and capable of holding down the formation of silver sulfide is provided. The apparatus includes a movable contact displaced in accordance with the fluctuation of a liquid level, electrodes slidingly cont... | 09/26/2006 |
| 7096522 | Bath overflow alarm suitable for different installation arrangements Alarms adaptable to common American bathtub cover plate configurations. Two different embodiments are illustrated. In a first embodiment, the alarm unit is designed to allow use with the three different mounting styles of cover plates used in the United States. The ... | 08/29/2006 |
| 7082827 | Leak detector An example of an apparatus for detecting the lowering of a top surface of a liquid includes a housing that has a housing hole, and an insertion member attached to the housing. A dowel is inserted into the housing hole, and a float is attached to the dowel. A detecto... | 08/01/2006 |
| 7068175 | Water level warning device A water level warning device for use in conjunction with a bathtub or a sink, for audibly warning a user when the water flowing into the bathtub or sink has reached a predetermined level. The warning device comprises a cylindrical tube containing a floating ball and... | 06/27/2006 |
| 7066919 | Alarm for a fluid-dispensing/receiving receptacle A fluid receptacle alarm assembly and/or kit comprising a fluid receptacle, an alarm module and at least one magnetic field source. The alarm module comprises an alarm, a magnetically-actuated switch, and a power source. The alarm module is attachable to a first sur... | 06/27/2006 |
| 7067749 | Float switch and mounting system assembly A float switch and mounting bracket assembly made from plastic and impervio is to corrosion, with improvements over the prior art including a wide float switch body for enhanced water displacement that results in a more responsive operation, a housing that protects ... | 06/27/2006 |
| 7047872 | Optical interlock for appliance An optical safety interlock is provided for operating a control circuit or control switch that enables operator activation of an electrical appliance such as a food processor. The optical interlock has an emitter for emitting a signal, a detector for detecting the e... | 05/23/2006 |
| 7036370 | Spring assembly with cantilevered spring rods A spring assembly and an apparatus incorporating the same. The spring assembly includes a base block configured to be rigidly fixed to a frame. A pair of nominally identical spring rods is cantilevered from the base block in a first direction. Each rod has a length,... | 05/02/2006 |
| 7038578 | Fault reporting system for a motor vehicle A defect reporting system for a vehicle having at least one electronic control unit, includes a check-control module that is connected with the at least one control unit and receives a report from the latter. An indicating device is connected with the check-control ... | 05/02/2006 |
| 7030768 | Water softener monitoring device A device for monitoring the level or amount of a material within a container is provided. The device includes a detection mechanism that can be a direct detection mechanism or an indirect detection mechanism. When the detection mechanism senses an upper level of the... | 04/18/2006 |
| 7023351 | Apparatus and method of controlling water supply of washing machine An apparatus and a method of controlling a water supply of a washing machine, which naturally discharges the water within a detergent dissolving unit when the water level within the detergent dissolving unit is more than a designated water level so as to prevent the... | 04/04/2006 |
| 7009125 | Electrical fluid activated switch A linear slip to slip coupling has an input portion and an output portion with a common horizontal centerline. A fluid container has a threaded aperture. An adaptor has a threaded input end releasably coupled to the threaded aperture of the container. An unthreaded ... | 03/07/2006 |
| 6972685 | Liquid level sensor A liquid level detecting apparatus resistant to the deterioration and corrosion thereof is provided while holding down an increase in the manufacturing cost thereof. This apparatus 1 has fixed electrodes 3 on which a sliding contact point 5 is s... | 12/06/2005 |
| 6953050 | Float, particularly for level control in bottles of liquefied gas and the like A float, particularly for level control in bottles of liquefied gas and the like, comprising a float body associated with an element for connection to a valve unit, the float body being constituted by an internally hollow element made of plastics whose shape is defi... | 10/11/2005 |
| 6938478 | Impedance level meter for liquids in tanks A method and a system for detecting the level of fluid in a container is provided: The level meter includes first, second and third generally parallel probes being positioned within the container. The first probe includes a first portion that is at least partially c... | 09/06/2005 |
| 6910498 | Liquid level controller A liquid level control system for detecting and responding to changes in the level of liquid in a container. The system includes a transmitter in radio communication with a receiver, which is in turn connected to a valve assembly. The transmitter unit is programmabl... | 06/28/2005 |
| 6783665 | Unit for automatically bleeding off the water which separates in a vehicle fuel filter, in particular for diesel engines The unit includes a sensor means (20) positioned in the collection chamber to undergo activation when the water level reaches a predetermined maximum value; there is also provided an electrically operated withdrawal device (30) connected to the vehicle... | 08/31/2004 |
| 6766688 | Tank volatile liquid level or volume gauge A tank liquid level or volume gauge for use with volatile materials, such as propane, stored under pressure as liquid and released as gas, includes a float with a float magnet that couples with a liquid level indicator magnet across a fluid impermeable wall to provi... | 07/27/2004 |
| 6753785 | Oil tank sight glass monitor An oil tank sight glass monitor comprising a housing having an opening therein sized to receive the sight glass of an oil tank; an emitter for emitting a beam of light, the emitter being mounted to the housing on one side of the opening so that the beam of light is ... | 06/22/2004 |
| 6679286 | Ball tap with a water level switch A compact ball tap with 1 a water level switch which comprises a guide standpipe 5 vertically arranged in a tank T, a float 6 slidably installed on the guide standpipe 5, a valve 3, a lever 4 controlling an open-close action of the valve 3 connected with ... | 01/20/2004 |
| 6657545 | Automatic detecting and prewarning system for medicine instiller An automatic detecting and prewarning system for medicine instiller mainly includes a clamp for easily clamping on a flow-indicating cylinder of the medicine instiller, detecting means of an electronic sensor type mounted on the clamp, alarm means connect... | 12/02/2003 |
| 6640628 | Level-measuring device This invention relates to a level-measuring device in which a signal generating device, a sampling device and a transmitting and/or receiving device are optimally connected to one another for various applications and signal shapes. The signal generating d... | 11/04/2003 |
| 6557412 | Non-fouling liquid level control A non-fouling liquid level detector and control especially for a sealed system likely to have iron particle contaminants. The device employs a float projecting above the liquid level and bearing above the liquid level a unmagnetized ferromagnetic tell-tal... | 05/06/2003 |
| 6536277 | Level-tracing water-monitoring apparatus A water-monitoring apparatus includes a frame being installed by water. A reel is mounted on the frame. A tension cable is wound on the reel and including a lower end and an upper end. A buoy is connected with the tension cable. A control device is connec... | 03/25/2003 |
| 6529134 | Remote adjustment device and method The invention provides a device and method for remotely selectively securing a floating tank roof in a desired position.... | 03/04/2003 |
