Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7723978 | Instrumentation device and interface combining multiple elements An instrumentation device having multiple elements includes at least one power supply module, a plurality of test and measurement instruments operatively coupled to the at least one power supply module and a user interface configured to select the at least one power... | 05/25/2010 |
| 7414329 | Polyphase power distribution and monitoring apparatus A polyphase power distribution and monitoring apparatus having sets of outputs for each phase of power and monitors for each phase of power disposed in the housing. Each monitor provides a visible display of current for an associated phase of power and an audible al... | 08/19/2008 |
| 7368830 | Polyphase power distribution and monitoring apparatus A polyphase power distribution and monitoring apparatus having sets of outputs for each phase of power and monitors for each phase of power disposed in the housing. Each monitor provides a visible display of current for an associated phase of power and an audible al... | 05/06/2008 |
| 7365528 | Method and apparatus of voltage measurement using flying capacitor and switching circuits The present invention is to provide a method and apparatus of voltage measurement with a high resolution. An apparatus of voltage measurement includes: a buffer circuit for separating a voltage between terminals of a capacitor or an equivalent voltage into a first v... | 04/29/2008 |
| 7363557 | System for at-speed automated testing of high serial pin count multiple gigabit per second devices A system performs automated at-speed testing of a plurality of devices that generate serial data signals having multiple gigabit per second baud rates. The system includes a test head including a device interface board (DIB), the DIB having a device under test holdi... | 04/22/2008 |
| 7347696 | Electrical junction box having an adjustment hole An electrical junction box is located so as to oppose to an adjuster which is provided on a rear face of an on-vehicle instrument. The electrical junction box has a first face which faces the on-vehicle instrument, and a second face which is opposite to the first fa... | 03/25/2008 |
| 7342393 | Multimeter with filtered measurement mode A multimeter with a filtered measurement mode. By pressing a single button or key, a low-pass filter is switched into the signal path to filter voltage spikes, noise, and switching transients from pulse-width modulated pulses, or lower frequency sinusoidal signals w... | 03/11/2008 |
| 7330342 | Safety tester having a high-voltage switching relay protected by an in-line electronic circuit breaker A multiple function safety compliance test instrument includes a high voltage output switching relay protected by a solid state in-line circuit breaker. ... | 02/12/2008 |
| 7313489 | System and method utilizing virtual switching for electrical panel metering A system and method utilizing virtual switching in an electrical panel meter. The virtual switching enables the meter to be upgraded or downgraded through a switching signal, by activating or deactivating the metering functions that are to be performed in the meter.... | 12/25/2007 |
| 7304618 | Remote display for portable meter A remote display is provided for use with a portable meter, such as a portable meter used for obtaining electrical measurements. The remote display can optionally be mounted to an extremity of a user for displaying information obtained by the portable meter within a... | 12/04/2007 |
| 7295654 | Digital kick meter and graphical user interface (GUI) A digital kick meter measures capacitive kick between two conductors and ground of a cable. The digital kick meter includes a resistance measuring circuit connectable to two of the conductors to provide a signal indicative of a capacitance between the two conductors... | 11/13/2007 |
| 7248176 | Color-changeable warning apparatus of vehicle meter A color-changeable warning apparatus of a vehicle meter transforms a measured value of the target position into a first digital signal and adopts a setting value as a second digital signal. The first digital signal and the second digital signal are compared by a com... | 07/24/2007 |
| 7248175 | Synchronously lighting apparatus of vehicle meter The present invention relates to a synchronously lighting apparatus of a vehicle meter. The digital signal transformed from the measured value triggers the light-emitting device of the light-outputting group so as to change the lighting status and triggers the displ... | 07/24/2007 |
| 7239126 | System bench wireless mapping board A system for testing electronic modules comprising at least one mapping board box, and at least one harness operably attached to the mapping board box with a harness port is disclosed. The mapping board box comprises pin receptors, wherein the receptors are in commu... | 07/03/2007 |
| 7227372 | Voltage monitoring apparatus in a semiconductor probe station An Electrical Die Sorting (EDS) process system for testing semiconductor chips comprises a probe station, a power supply unit configured in the probe station, and a voltage apparatus for measuring voltages of the power supply. The voltage apparatus comprises a measu... | 06/05/2007 |
| 7196635 | Indicating instrument for vehicle A circuit board is divided into two portions: a flexible printed circuit board; and a printed circuit board. On the flexible circuit board, movements whose layouts on the flexible circuit board are changed based on a design change in a dial plate due to a model chan... | 03/27/2007 |
| 7184904 | System and method for providing universal additional functionality for power meters A system and method for providing an additional option function to existing functionality of a meter device configured for measuring parameters of energy is provided. The meter device is coupled with an option device for exchanging data between the coupled devices a... | 02/27/2007 |
| 7171317 | Load information display device and circuit breaker This invention is intended to reduce the cost by displaying the load information of a plurality of circuits with a single display device and transferring one of the two communication units in the measuring instruments from the measuring instruments to the display de... | 01/30/2007 |
| 7155350 | System and method utilizing virtual switching for electrical panel metering A system and method utilizing virtual switching in an electrical panel meter. The virtual switching enables the meter to be upgraded or downgraded through a switching signal, by activating or deactivating the metering functions that are to be performed in the meter.... | 12/26/2006 |
| 7112163 | Stands for supporting exercise dumbbells An exercise system includes a unique dumbbell stand configured to support first and second dumbbells in more than one configuration. The dumbbells are preferably mounted on respective floor engaging frame members that are movable relative to one another. The stand i... | 09/26/2006 |
| 7081719 | Computer power supply with a display function A computer power supply with a display function has a rectifying circuit, an EMI filter, a power factor corrector, a switching circuit, a transformer and a secondary coil voltage regulator located between an AC voltage input and a DC voltage output. A linear rectify... | 07/25/2006 |
| 7051432 | Method for providing an electrical connection A preferred method for electrically connecting a first and a second component includes inserting a wire pin through a through hole formed in the first component so that a first portion of the wire pin is located within the through hole and a second portion of the wi... | 05/30/2006 |
| 7034517 | Multimeter with filtered measurement mode A multimeter with a filtered measurement mode. By pressing a single button or key, a low-pass filter is switched into the signal path to filter voltage spikes, noise, and switching transients from pulse-width modulated pulses, or lower frequency sinusoidal signals w... | 04/25/2006 |
| 7026822 | High voltage switching matrix for electrical safety compliance test equipment A high voltage switching matrix for selectively connecting a plurality of different voltage/current sources or inputs with a plurality of different outputs includes a common or shared relay for each of the voltage/current sources at the voltage/current source inputs... | 04/11/2006 |
| 6996757 | Test system rider board utilized for automated at-speed testing of high serial pin count multiple gigabit per second devices A test head performs at-speed testing of high serial pin count gigabit per second (GBPS) devices. The test head includes a device under test (DUT) coupled to a first portion of the test head and a rider board coupled to the DUT. The rider board includes a first sign... | 02/07/2006 |
| 6969983 | Oscilloscope module for portable electronic device An oscilloscope adapter for a portable electronic device includes a hardware interface connector and a computer program memory. The memory stores computer program instructions that direct the electronic device to collect data representative of a signal from an exter... | 11/29/2005 |
| 6944559 | Channel isolation by switched grounds A signal acquisition instrument, such as an oscilloscope, having an input stage that is referenced to a user's ground is disclosed. Information gathered by the input stage is stored in a storage element powered by a floating power supply that is referenced to the us... | 09/13/2005 |
| 6750751 | Integrated magnetic signal isolator with feedback An integrated circuit signal isolator includes a magnetic field sensor in a first metal layer formed over a semiconductor substrate. A first dielectric layer is formed over the first metal layer, and an input coil in a second metal layer is formed over the first die... | 06/15/2004 |
| 6731217 | Electrical circuit tester An electrical circuit tester for allowing a user to efficiently test electrical fixtures and switches. The electrical circuit tester includes a housing that has a plurality of prongs that extend from the housing. The prongs are adapted for engaging an electrical out... | 05/04/2004 |
| 6538420 | Automated run test system having built-in high voltage switching matrix for interconnection to a safety compliance testing instrument An electrical run test instrument having a connection to a device under test includes a line voltage input, a high voltage input, and a high voltage switching matrix that enables selective connections between the device under test and line voltage or high... | 03/25/2003 |
| 6531862 | High performance current sensor using low cost current transformer arrays The present invention provides a current sensor for an electrical device. The sensor includes a housing, a conductor routed through the housing, an array of current transducers coupled to the conductor, and a current level signal generated by the current ... | 03/11/2003 |
| 6218824 | Simplified user interface and control system for a multimeter A simplified user interface for an electronic test and measurement device comprises an arrangement of a segmented LCD device and a plurality of keys used to implement a softkey system, in combination with a single AMPs input connector and a rotary selecto... | 04/17/2001 |
| 6184674 | Indicating instrument with migration barriers Moving magnet indicating instruments in which a damping fluid migration barrier projects from the inside of one wall of the bobbin coil and another damping fluid migration barrier projects from the face of the rotor which confronts that wall. Certain flui... | 02/06/2001 |
| 6112138 | Programming response of electronically-controlled gauges Rather than using the viscosity of dampening oil to establish the speed at which the movement of an air core instrument gauge moves, the speed is defined by programming speed data into memory of a microprocessor that controls the movement. When the microp... | 08/29/2000 |
| 5926015 | Machine readable display unit A machine readable unit for meter devices of the type presenting a changeable, readable indicia proportional to a changeable input thereto, to include electric rate meters, gas meters, water meters, and other data registers, includes an assembly for displ... | 07/20/1999 |
| 5854552 | Moving magnet indicating instruments with a plurality of damping fluid migration barriers Moving magnet indicating instruments in which a damping fluid migration barrier projects from the inside of one wall of the bobbin coil and another damping fluid migration barrier projects from the face of the rotor which confronts that wall.... | 12/29/1998 |
| 5581470 | Apparatus for visually graphically displaying the operating point of a generator in reference to its capability curve including digital readouts of watts, vars and hydrogen pressure A computer-based meter provides a real time graphic display indicative of the operating point, in terms of watt and var flow, of a generator in relation to the capability curve of the generator. Data representative of the capability curve of the generator... | 12/03/1996 |
| 5557198 | Onboard digital locomotive multimeter A digital, DC voltage meter device utilized for metering electric power on a locomotive system. This invention will eliminate the need to use a hand held meter to perform these functions. The meter is permanently built into the Voltage test panel, replaci... | 09/17/1996 |
| 5448162 | Instrument for testing and/or measuring electric magnitudes The invention relates to an instrument for testing and/or measuring electric magnitudes, in particular voltages and/or resistances. The instrument consists of two handle parts (10, 12), which are connected by a flexible cable (14), and which each have a c... | 09/05/1995 |
| 5408177 | Meter mounting plate member in a battery charger casing A dual meter mounting plate member carrying an ammeter and a voltmeter, the plate member having therein recesses to receive the voltmeter and the ammeter, the plate member being removably attached to within a battery charging casing, the ammeter being con... | 04/18/1995 |
