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| Number | Title | Issue Date |
| 7365504 | Motor having multiple independent armature winding sets A motor is provided that includes multiple sets of independent stator windings that are not magnetically coupled, which allows the motor to be driven by multiple independent current drivers, and thereby increases the overall torque generated by the motor. In one emb... | 04/29/2008 |
| 7349760 | System and method for sensing and controlling the concentration of a chemical agent in a solution A system for measuring and controlling the concentration of a chemical agent in a solution has a reaction cell for receiving a sample, a titrant dropper for releasing one or more drops of titrant into the sample, a first photosensor for sensing disruptions of light ... | 03/25/2008 |
| 7341321 | Rotation detecting device and anti-skid braking system using the same A rotation detecting device that includes an electric power generator having a stator and a rotor, said rotor having a plurality of alternating opposite magnetic poles in a circumferential direction of the rotor, at least a first magnetic sensor mounted on either th... | 03/11/2008 |
| 7331469 | Vibratory separator with automatically adjustable beach A vibratory separator having a basket for supporting screen apparatus for treating material, the basket pivotably mounted on a base, vibratory apparatus connected to the basket for vibrating the basket, the material forming a pool on the screen apparatus, and a beac... | 02/19/2008 |
| 7322971 | Surgical drain with sensors for monitoring internal tissue condition by transmittance Devices and methods of using a surgical drain, and more particularly a surgical drain having at least one sensor for monitoring and/or recording the condition of the anatomical site or fluid emitted from the site where the surgical drain is placed. Modifications may... | 01/29/2008 |
| 7278540 | Adjustable basket vibratory separator A vibratory separator having a base, a basket movably mounted on the base and for supporting screen apparatus for treating material introduced into the vibratory separator, the basket on a base and pivotable with respect thereto, vibratory apparatus connected to the... | 10/09/2007 |
| 7267671 | Surgical drain with sensors for monitoring fluid lumen Devices and methods of using a surgical drain, and more particularly to a surgical drain having at least one sensor for monitoring and/or recording the condition of the anatomical site or fluid emitted from the site where the surgical drain is placed. Modifications ... | 09/11/2007 |
| 7264616 | Method of utilizing a surgical drain with sensors for monitoring internal tissue condition The present invention is directed to devices and methods of using a surgical drain, and more particularly to a surgical drain having at least one sensor for monitoring and/or recording the condition of the anatomical site or fluid emitted from the site where the sur... | 09/04/2007 |
| 7252659 | Implanted surgical drain with sensing and transmitting elements for monitoring internal tissue condition The present invention is directed to devices and methods of using a surgical drain, and more particularly to a surgical drain having at least one sensor for monitoring and/or recording the condition of the anatomical site or fluid emitted from the site where the sur... | 08/07/2007 |
| 7244251 | Implanted surgical drain with multiple sensing elements for monitoring internal tissue condition The present invention is directed to devices and methods of using a surgical drain, and more particularly to a surgical drain having at least one sensor for monitoring and/or recording the condition of the anatomical site or fluid emitted from the site where the sur... | 07/17/2007 |
| 7241287 | Implanted surgical drain with drain holes for monitoring internal tissue condition The present invention is directed to devices and methods of using a surgical drain, and more particularly to a surgical drain having at least one sensor for monitoring and/or recording the condition of the anatomical site or fluid emitted from the site where the sur... | 07/10/2007 |
| 7222526 | Liquid measurements using capacitive monitoring An apparatus for determining the volume of liquid in a probe tip of an aspirating or dispensing probe, such as those used in a diagnostic analyzer, includes: two electrodes on opposite sides of the probe tip and the electrodes and liquid form a variable capacitor; a... | 05/29/2007 |
| 7142627 | Counting scheme with automatic point-of-reference generation A counting scheme for a non-volatile counter includes automatic point-of-reference generation implemented in a state machine. Two state variables are used to store the rotation history of the magnet. One variable stores the previous position of the magnet and the ot... | 11/28/2006 |
| 7107986 | Dispenser with doses' counter There is provided a dispenser suitable for dispensing medicament, particularly medicament for use in the treatment of respiratory disorders. The dispenser comprises a housing having a support; a container, locatable within said housing, having an outlet, wherein sai... | 09/19/2006 |
| 6926821 | Water treatment device with volumetric and time monitoring features A totalization meter system for a water treatment device, the device having an inlet aperture and an outlet aperture, and a channel for channeling water between the inlet and outlet apertures. A flow reactive device is positioned in the channel and is exposed to the... | 08/09/2005 |
| 6628741 | Non-volatile passive revolution counter with reed magnetic sensor A shaft revolution counter including one or more reed magnetic sensors interacting with one or more magnets attached to the shaft. The interaction generates voltage spikes in the reed magnetic sensors that are used as input signal to an electronic non-vol... | 09/30/2003 |
| 6542568 | Soap dispenser having reward program A system for rewarding and encouraging compliance with a predetermined personal hygiene standard in a hygiene compliance program. The system comprises a fluid dispenser. The fluid dispenser includes an actuator. A sensor is connected to the actuator. A pr... | 04/01/2003 |
| 6333626 | Flow meter for converting mechanical rotation into an electronic signal A metering device has a magnet with ten poles which is driven to rotate by a gear connected to a source of rotation that is proportional to fluid flow, the passage of time, or other phenomenon. A reed switch is mounted so that rotation of the poles of the... | 12/25/2001 |
| 6255748 | Switch status sensor A switch status sensor is provided for counting on/off events of a switch of a water meter. When an on/off event is detected by a microcontroller, the microcontroller supplies a "signature" signal, which is distinguishable from electromagnetic noise, to t... | 07/03/2001 |
| 6087959 | Optically coupled gas meter A gas meter using optical communication. The meter includes a shaft that is rotated by a flow of gas, a first sensor for sensing a first rotational angle of the shaft, a second sensor for sensing a second rotational angle of the shaft, a first light sourc... | 07/11/2000 |
| 5923262 | Adaptive methods of determining blockage in an air seeder blockage monitoring system Computer implemented methods for determining blocked and partially blocked conditions in the flow of particulate matter in an agricultural air seeding system are disclosed which automatically adapt for changes in seed type, seed density, fan rate or seed ... | 07/13/1999 |
| 5686894 | Two terminal I.C. magnetic-field detector for use in a liquid level sensor and having an anti-slosh feature A two-terminal integrated circuit magnetic-field detector, for use in detecting a low level of a liquid in a vehicle, has a Hall element, a Schmitt type comparator, an anti-sloshing accumulator such as an up-down counter, and a latching driver all connect... | 11/11/1997 |
| 5625659 | Method and apparatus for electronically measuring dispenser usage An apparatus and method of counting dispensing events or washes in a fluid dispenser in which an activator is moved from a starting position to a dispensing position and back to dispense material includes a counter which is indexable to record a dispensin... | 04/29/1997 |
| 5504789 | Phase detetion method for flow measurement and other applications A phase angle difference between two alternating electrical signals is determined as a function of a ratio of a differential combination of two different numbers of pulse counts to an additive combination of the two different numbers of pulse counts, wher... | 04/02/1996 |
| 5500882 | Portable flow timer device A portable flow timer device for determining the time between two successive fluid flow detection signals input thereto comprising an electric timer mechanism including an input probe connector mechanism for receiving fluid flow detection signals from ext... | 03/19/1996 |
| 5400376 | Ultrasonic fuel gauging system using state machine control Ultrasonic fuel gauging apparatus for a fuel tank having a plurality of ultrasonic fuel level sensors for sensing fuel levels at respective predetermined locations in a tank based on echo ranging; a memory means for storing sensor data; and a state device... | 03/21/1995 |
| 5347864 | Liquid level measuring apparatus An improved liquid level measuring apparatus having a plurality of spaced reed switches having a microprocessor attached to the liquid level measuring sensor apparatus. The switches are wired together in parallel and in sets and are addressed by a shift r... | 09/20/1994 |
| 5327473 | Time period configurable fluid flow control circuit A timing circuit 10 that can be used to control the flow of fluid according to a specific time period that is allotted for each user includes a initialization circuit 30, a reset counter circuit 32, a flow time counter circuit 38, and a clock circuit 40. ... | 07/05/1994 |
| 5270684 | Oil consumption counter An improved electronic measuring system which not only determines the amount of fuel oil consumed by a home, office, or factory heating system, but also detects leaks in underground fuel storage tanks, errors in oil deliveries, heating system problems suc... | 12/14/1993 |
| 5259251 | Device for counting rotations The invention pertains to a rotation gauge for a water meter register where the hydraulic part of the meter rotates a shaft whose revolutions are to be counted. At the other end of the shaft at least one magnet is driven by rotation by the shaft. Outside ... | 11/09/1993 |
| 5257300 | Digital anti-slosh system The input voltage from a fuel tank level sender is processed by an anti-slosh circuit which has a short time constant during a fast acquire operation and a longer time constant during normal operation. The slew rate of the output voltage provided to a gau... | 10/26/1993 |
| 5225995 | Flow rate measurement control for refuelling control system A refuel control system is disclosed which may be utilized in a gasoline or other fluid refuelling operation. This system effectively prevents differences in refuelled volume and accurately determines the amount of fluid dispensed. Differences in refuelli... | 07/06/1993 |
| 5152424 | Drop counting system An electronic apparatus for counting and recording a number of drops of fluid. The preferred embodiment of the invention is configured as a molded receptacle housing for receiving a commercially available eyedrop bottle in which the cap has been replaced ... | 10/06/1992 |
| 5056554 | Fluid loss, damage prevention and control system A control system apparatus for a fluid distribution system includes a low-voltage circuit and a positive displacement disc in a throughput line such that as fluid displaces the positive displacement disc a magnet associated therewith is also rotated. The ... | 10/15/1991 |
| 5012496 | Drop counting system An electronic apparatus for counting and recording a number of drops of fluid. The preferred embodiment of the invention is configured as a molded receptacle housing for receiving a commercially available eyedrop bottle in which the cap has been replaced ... | 04/30/1991 |
| 4991435 | Electronic fuel gauge system A liquid level indicating system particularly applicable to monitoring the fuel level in a motor vehicle includes an anti-slosh feature incorporated into a system amplifier to substantially eliminate fluctuations in the fuel level indicated by a fuel gaug... | 02/12/1991 |
| 4977517 | Leak and clog detection and removal system for use with particle counters In a particle counting system for sensing and counting particles, a sample fluid is drawn through an orifice from a sample chamber into a substantially enclosed fluid passage at a selected rate sufficient to maintain the pressure in the substantially clos... | 12/11/1990 |
| 4910519 | Electronic volume correctors To obtain better accuracy, it is known to modify the mechanical metered volume reading of the flow through a gas pipeline according to the gas laws, which incorporate the pressure and temperature parameters of the gas. The present invention samples those ... | 03/20/1990 |
| 4899289 | Apparatus for and method of processing signals in a composite waveform including noise and a periodic component The occurrence and frequency of a periodic component embedded in a composite waveform including noise is detected by real time calculating the autocorrelation function of the waveform and deducing the frequency of the periodic component from the value of ... | 02/06/1990 |
| 4838082 | Fuel gauge damper circuit A fuel gauge damper circuit takes a variable resistance signal from a fuel tank sending unit, develops an input voltage proportional to the variable resistance and generates a filtered average of the input voltage at the fuel gauge output. The circuit dam... | 06/13/1989 |
