Assignee: Ametek, Inc.

Location: Paoli, PA
No. of patents: 43

Number	Title	Issue Date
8152495	Peripheral discharge tube axial fan A mixed flow fan assembly includes an electric motor, an impeller having a hub enclosing the motor, and a plurality of fan blades spaced circumferentially around the hub. The fan assembly also includes an axis of rotation extending through the hub, an annular ventur...	04/10/2012
8069289	Modbus register data formatting A Modbus data protocol register formatting system and method are disclosed. The system and method provide for the Modbus communications protocol request and recall of data stored in a register in the data base native format, and the conversion of the data into a dif...	11/29/2011
7952843	Arc detection circuit An arc detector comprising a voltage generator for detecting a voltage and an integrator for integrating said voltage with respect to time and generating an output signal corresponding to said integration. The arc detector also includes a discharge controller for co...	05/31/2011
7869234	Poly-phase AC/DC active power converter A three-phase AC/DC active power converter provides an H-bridge that is controlled by a DSP (digital signal processing) controller that places the H-bridge in a voltage-boost mode of operation when voltage of a DC-link capacitor maintained by the H-bridge is near th...	01/11/2011
7683519	Curvilinear brush retainer with liner for an electric motor assembly A curvilinear brush retainer and brushes for an electric motor assembly provides an end plate upon which is disposed a pair of curvilinear brush retainers. The brush retainers are configured to retain and support a pair of curvilinear brushes as they are biased agai...	03/23/2010
7636225	Arc detection circuit An arc detector comprising a voltage generator for detecting a voltage and an integrator for integrating said voltage with respect to time and generating an output signal corresponding to said integration. The arc detector also includes a discharge controller for co...	12/22/2009
7490510	Multi-function air data sensor An air data sensor that determines a body's angle of attack, static air pressure, total air pressure, mach number, static air temperature and true air speed in one device using pressure and temperature readings. The air data sensor includes a probe that protrudes in...	02/17/2009
7400478	Arc detection circuit An arc detector comprising a voltage generator for detecting a voltage and an integrator for integrating said voltage with respect to time and generating an output signal corresponding to said integration. The arc detector also includes a discharge controller for co...	07/15/2008
7394975	Drive circuit for a sensored brushless DC motor A drive circuit for a sensored brushless DC motor, which has a rotably mounted rotor hub, comprises four legs. Each leg has a MOSFET and a diode configured to form four individual nodes. A first primary stator winding is coupled between the first and second nodes, w...	07/01/2008
7330803	High resolution time interval measurement apparatus and method A time interval measurement apparatus and method counts the total number of full clock time periods between two measurement signals. Clock fractional time periods are generated between each of the two measurement signals and the next leading edge of a full clock tim...	02/12/2008
7133267	Arc detection circuit An arc detector comprising a voltage generator for detecting a voltage and an integrator for integrating said voltage with respect to time and generating an output signal corresponding to said integration. The arc detector also includes a discharge controller for co...	11/07/2006
7096287	Automatic address selection method A method of transmitting a signal to at least one of a plurality of serially-connected devices. The method includes the step of receiving the signal at a first one of the plurality of serially-connected devices, where the signal includes a first address. Then, the s...	08/22/2006
7019306	Flame sensor A UV flame sensor is formed on a multilayer printed circuit board. The circuitry of the sensor includes a photodiode for detecting an input signal, an amplifier for amplifying the input signal, a FET for providing automatic gain control, and at least one capacitor f...	03/28/2006
7011446	Thermocouple junction box with isolated studs A thermocouple junction box for reducing EMF generated by a stud-and-cup configuration comprises a cup adapted to be electrically connected to a thermocouple sensing junction and a stud disposed, at least in part, within the cup, the stud being electrically isolated...	03/14/2006
6927963	Fault detection circuit for use with a power control device A fault detection circuit that includes a controllable switch coupling a power source to a load. Control circuitry is provided that determines if the switch is in the proper conduction state based on a switch control signal and a signal indicative of power delivered...	08/09/2005
6912427	Programmable limit switch with distributed intelligence A programmable limit switch includes output channels for receiving position data, each position value of the position data representing an incremental advance of a workpiece through a production field, and for producing actuation signals. The channels are connectabl...	06/28/2005
6857776	Connectorized high-temperature thermocouple A high-temperature connectorized thermocouple probe assembly for use in land gas turbine environments consistent with the present invention comprises a thermocouple junction having a plurality of conductors, a high temperature connector having at least one conductor...	02/22/2005
6817241	Point level device with automatic threshold setting A system and method is provided for automatically setting a threshold for a point level device without having a user select whether a point level element is covered or uncovered. A first and second value is measured from a point level element. Whether the point leve...	11/16/2004
6802218	Flexible level detection apparatus A level detection apparatus includes a wave guide or discrete sensors mounted in an outer flexible housing. A weight is attached to a distal end of the outer housing. A biasing spring is coupled to the opposite end of the outer housing for exerting a force on the ou...	10/12/2004
6776524	Rake thermocouple A thermocouple probe assembly is provided that includes at least one ball bushing placed along the length of the assembly to dampen vibrations and thereby reduce mechanical stress on the assembly. A rake thermocouple is provided that includes a plurality of probe tu...	08/17/2004
6606228	Fault detection circuit for use with a power control device A fault detection circuit that includes a controllable switch coupling a power source to a load. Control circuitry is provided that determines if the switch is in the proper conduction state based on a switch control signal and a signal indicative of powe...	08/12/2003
6504117	Foot operated switch for electrical circuits A foot operated apparatus for providing a switch closure to an external electrical circuit. The apparatus includes a housing having a switch mounted therein carrying a plunger actuated electrical contact moveable between two positions. A foot operated mem...	01/07/2003
6485846	Corrosion resistant gauge component A component for a gauge comprising a bourdon tube having a first end and a second end. A socket is joined to the first end of the bourdon tube and a closure member is joined to the second end of the bourdon tube. At least one of the bourdon tube and the c...	11/26/2002
6422745	System and method for determining combustion temperature using infrared emissions The present invention relates to a combustion temperature sensor, and, more particularly, to a combustion temperature sensor that measures infrared radiation emitted at several preselected wavelengths from a flame and/or a flame's hot gas at a turbine inl...	07/23/2002
6388431	High efficiency power supply for a two-wire loop powered device A process control device is disclosed. The process control device comprises a measuring circuit (102) and a power regulator circuit (100). The measuring circuit (102) is coupled to the power regulator (100), and produces a control signal indicative of a m...	05/14/2002
6354733	System and method for determining combustion temperature using infrared emissions The present invention relates to a combustion temperature sensor, and, more particularly, to a combustion temperature sensor that measures infrared energy emitted at several preselected wavelengths from a flame and/or a flame's hot gas at a turbine inlet ...	03/12/2002
6236293	Magnetic latching contactor The present invention provides a magnetic latching contactor for high current switching applications. A stationary assembly is provided which comprises a first passive biasing member and an active biasing member. A moveable assembly is slidably coupled to...	05/22/2001
6224818	System and method for purifying molten metal A process and system for purifying molten metal utilize a filter holder which has a spring-loaded clasp for releasably engaging a filter component. The filter holder is particularly well-suited to engaging and releasing a fabric filter having a frame surr...	05/01/2001
6212943	Method and apparatus for the sonic measurement of sludge and clarity conditions during the treatment on waste water A sludge blanket level is determined in a waste water treatment clarifier using sonic pulse reflections. Additionally, using similar techniques, the clarity of the waste water is determined. A sonic pulse is directed into the waste water. Echos are genera...	04/10/2001
6181847	Optical switch An illumination source transmits light through a transmitting light pipe to an optical switch. A first receiving light pipe is aligned with and spaced from the first transmitting light pipe to form a first gap therebetween. The switch includes a switch ca...	01/30/2001
4977097	Method of making heterojunction P-I-N photovoltaic cell A heterojunction p-i-n photovoltaic cell having at least three different semiconductor layers formed of at least four different elements comprises a p-type relatively wide band gap semiconductor layer, a high resistivity intrinsic semiconductor layer, use...	12/11/1990
4873198	Method of making photovoltaic cell with chloride dip A method of making a multi-layer photovoltaic cell containing a heat-treated layer including Cd and Te, comprising the sequential steps of applying a chloride to the layer, heat-treating the layer with the chloride thereon, and subsequently depositing ano...	10/10/1989
4710589	Heterojunction p-i-n photovoltaic cell A heterojunction p-i-n photovoltaic cell having at least three different semiconductor layers formed of at least four different elements comprises a p-type relatively wide band gap semiconductor layer, a high resistivity intrinsic semiconductor layer, use...	12/01/1987
4351734	Spark cell ozone generator A method of treating liquid waste with ozone by passing the liquid to be treated between complementary horizontal electrodes having therebetween electrically conductive particles so as to form an electrode bed, pulsing air simultaneously with said liquid,...	09/28/1982
4345107	Cadmium telluride photovoltaic cells Photovoltaic cell comprises thin film cadmium telluride in ohmic contact with a conductive substrate, preferbaly comprising a cadmium surface, through a cadmium-rich layer at the interface with the substrate. The cell further includes a rectifying barrier...	08/17/1982
4300534	Solar collector with modified plumbing and array thereof The invention relates to solar collectors which transfer thermal energy from a collector to a point of use by means of a heat exchange fluid. An array of collectors may be provided having a modified system to facilitate convenient assembly into an array a...	11/17/1981
4261802	Method of making a photovoltaic cell Photovoltaic cell comprises thin film cadmium telluride in ohmic contact with a smooth conductive substrate, preferably comprising a cadmium surface, through a cadmium-rich layer at the interface with the substrate, the cell further including a rectifying...	04/14/1981
4260427	CdTe Schottky barrier photovoltaic cell Photovoltaic cell comprises thin film cadmium telluride in ohmic contact with a smooth conductive substrate, preferably comprising a cadmium surface, through a cadmium-rich layer at the interface with the substrate, the cell further including a rectifying...	04/07/1981
4202320	Solar energy collector assembly An improved solar energy collector assembly with a multiple glazed outer face, a flat collector member and an insulated bottom and side enclosure is provided with significantly enhanced thermal efficiency due to the mounting of the heat collector member a...	05/13/1980
4201190	Solar energy collector assembly and sub-assemblies thereof Solar energy collector assembly including a solar energy collector in an enclosed space housing with bottom closure member secured by a snap-fit spring channel and low thermal conductivity mating projection therefor, a collector member securing means comp...	05/06/1980

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Assignee: Ametek, Inc.