| Patent Number |
Title Of Patent |
Date Issued |
| RE32027 |
Wet pick-up vacuum unit motor bearing air seal |
November 12, 1985 |
| A wet pick-up type vacuum motor fan unit with a separately ventilated motor section and a motor end bracket serving also as a support for, and part of a discharge end housing wall for, the working air fan section, has on the bracket fanward face a centrally apertured metal disk plate def |
| D476664 |
Motor lamination |
July 1, 2003 |
|
| D378850 |
Shower water filter |
April 15, 1997 |
|
| D275263 |
Cord reel |
August 28, 1984 |
|
| 7400478 |
Arc detection circuit |
July 15, 2008 |
| 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 controlling said output |
| 7394975 |
Drive circuit for a sensored brushless DC motor |
July 1, 2008 |
| 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, while a second primary |
| 7352103 |
Motor assembly with a sealed commutator/brush interface |
April 1, 2008 |
| A motor assembly includes a commutator having a shaft extending axially therefrom, a commutator end bracket assembly, and at least two brushes carried by the commutator end bracket assembly and in contact with the commutator. A disc is carried by the commutator for rotation therewith. |
| 7330803 |
High resolution time interval measurement apparatus and method |
February 12, 2008 |
| 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 time period. The total |
| 7133267 |
Arc detection circuit |
November 7, 2006 |
| 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 controlling said output |
| 7132777 |
Electric motor and brush retaining assembly |
November 7, 2006 |
| The present invention generally provides a motor-fan unit including a motor assembly having a shaft, a commutator supported on the shaft, and a pair of brushes in electrical contact with the commutator, a fan assembly having an impeller coupled to the shaft, an end plate assembly located |
| 7102266 |
Motor assembly with a sealed commutator/brush interface |
September 5, 2006 |
| A motor assembly includes a commutator having a shaft extending axially therefrom, a commutator end bracket assembly, and at least two brushes carried by the commutator end bracket assembly and in contact with the commutator. A seal is carried by either the commutator or the commutator |
| 7096287 |
Automatic address selection method |
August 22, 2006 |
| 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 signal is sent to e |
| 7091635 |
Motor/flywheel assembly with shrouded radial cooling fan |
August 15, 2006 |
| A flywheel/motor assembly is disclosed that comprises a motor housing having a sidewall and an end wall extending substantially perpendicularly from the sidewall. The end wall enclose a motor assembly having a rotatable shaft extending therefrom. The motor housing has at least one ai |
| 7033137 |
Vortex blower having helmholtz resonators and a baffle assembly |
April 25, 2006 |
| A blower includes a blower housing having a chamber, an impeller rotatably received in the chamber, the impeller having a plurality of blades; and at least one resonator ring associated with one of the blower housing and the impeller. The resonator ring provides a plurality of resonator |
| 7019306 |
Flame sensor |
March 28, 2006 |
| 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 for providing stabi |
| 7011446 |
Thermocouple junction box with isolated studs |
March 14, 2006 |
| 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 from the cup. In |
| 6955530 |
Fan motor bracket and baffle assembly |
October 18, 2005 |
| A fan/motor assembly having an integrated brush support and bearing retainer is disclosed. The fan/motor assembly includes a rotatable shaft, a working air fan coupled to the shaft, and a motor bracket and baffle assembly interposed between the working air fan and the motor assembly. |
| 6927963 |
Fault detection circuit for use with a power control device |
August 9, 2005 |
| 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 to the load. If the |
| 6912427 |
Programmable limit switch with distributed intelligence |
June 28, 2005 |
| 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 connectable to respective output |
| 6857776 |
Connectorized high-temperature thermocouple |
February 22, 2005 |
| 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, a length of cable |
| 6817241 |
Point level device with automatic threshold setting |
November 16, 2004 |
| 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 level element is covered o |
| 6802218 |
Flexible level detection apparatus |
October 12, 2004 |
| 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 outer housing to accommo |
| 6794787 |
Bypass motor fan assembly having an integral brush clamp and vent cover retention clip and metho |
September 21, 2004 |
| A bypass motor fan assembly having an integral vent cover retention clip includes a motor assembly having a motor bracket which carries at least a pair of motor brushes. A vent cover is coupled to the motor assembly and is retained by the clip. The integral clip is secured to the motor b |
| 6776524 |
Rake thermocouple |
August 17, 2004 |
| 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 tubes arranged parallel |
| 6762531 |
Motor assembly having improved flux properties |
July 13, 2004 |
| A motor assembly having improved flux density includes a field assembly and an armature assembly rotatably received by the field assembly. The field assembly includes a plurality of like laminations stacked upon each other wherein each field lamination comprises a pair of substantially p |
| 6756713 |
Insulated stator core with attachment features |
June 29, 2004 |
| An encapsulated stator assembly includes a plurality of like laminations stacked in registration with one another. Each lamination contacts at least one adjacent lamination, but none of them are integrally connected in any way to any other lamination. A single covering layer partially |
| 6736615 |
Brush and bearing holder for a fan/motor |
May 18, 2004 |
| A fan/motor assembly having an integrated brush support and bearing retainer is disclosed. The fan/motor assembly includes a rotatable shaft, a working air fan coupled to the shaft, and a motor bracket and baffle assembly interposed between the working air fan and the motor assembly. |
| 6703754 |
Electric motor and brush retaining assembly |
March 9, 2004 |
| The present invention generally provides a motor-fan unit including a motor assembly having a shaft, a commutator supported on the shaft, and a pair of brushes in electrical contact with the commutator, a fan assembly having an impeller coupled to the shaft, an end plate assembly located |
| 6695580 |
Motor/fan assembly having a radial diffuser bypass |
February 24, 2004 |
| A bypass motor assembly includes a motor having a rotatable shaft, a working air fan secured to the rotatable shaft and a shroud having an intake eyelet and at least one exhaust apertures. The assembly includes an end bracket having a shaft hole through which the shaft extends. The end |
| 6648613 |
Fan blower assembly with one-piece air diffuser and bayonet-style end cap |
November 18, 2003 |
| A blower assembly includes a rotor assembly having a shaft and a stator assembly coupled to the rotor assembly. A shrouded fan assembly is coupled to the shaft so as to generate an air flow when the shaft rotates. A unitary diffuser having a fan side opposite a motor side, is included |
| 6606228 |
Fault detection circuit for use with a power control device |
August 12, 2003 |
| 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 to the load. If the |
| 6561772 |
Motor cooling fan housing with muffler |
May 13, 2003 |
| A bypass discharge motor assembly with improved noise reduction includes a motor assembly having a rotatable shaft. A working air fan assembly and a cooling fan are rotated by the shaft. A cooling fan housing is coupled to the motor assembly and partially encloses the cooling fan. The co |
| 6504117 |
Foot operated switch for electrical circuits |
January 7, 2003 |
| 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 member is pivotally mounted on the |
| 6485846 |
Corrosion resistant gauge component |
November 26, 2002 |
| 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 closure member comprises a copper |
| 6472786 |
Bearing protection assembly for motors |
October 29, 2002 |
| A bearing protection assembly protects a motor having a rotating shaft. The motor includes a bearing carried on the shaft, having one side proximal the motor and one side distal the motor. A support member is positioned adjacent the bearing's distal side and disposed about the shaft. A |
| 6461124 |
Through-flow blower with cooling fan |
October 8, 2002 |
| A through-flow blower assembly includes a housing that carries a motor assembly. The motor assembly has a stator, and a rotor that rotates a shaft when energized. The rotor has openings therethrough. A fan shell has an axial opening and is coupled to the housing. At least one rotating fa |
| 6439843 |
Motor/fan assembly having a radial diffuser bypass |
August 27, 2002 |
| A bypass motor assembly includes a motor having a rotatable shaft, a working air fan secured to the rotatable shaft and a shroud having an intake eyelet and at least one exhaust apertures. The assembly includes an end bracket having a shaft hole through which the shaft extends. The end |
| 6422745 |
System and method for determining combustion temperature using infrared emissions |
July 23, 2002 |
| 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 inlet location and applies the energ |
| 6388431 |
High efficiency power supply for a two-wire loop powered device |
May 14, 2002 |
| 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 measured value. The power regu |
| 6309180 |
Molded through-flow motor assembly |
October 30, 2001 |
| A molded through-flow motor assembly has a motor housing, including a cup portion and a flange portion. The flange portion includes a plurality of ramp surfaces extending outwardly therefrom. The cup portion has a field retaining wall and guide rib extending inwardly therefrom on opposit |
| 6236293 |
Magnetic latching contactor |
May 22, 2001 |
| 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 the stationary assembly for |
| 6224818 |
System and method for purifying molten metal |
May 1, 2001 |
| 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 surrounding its perimeter. The pr |
| 6212943 |
Method and apparatus for the sonic measurement of sludge and clarity conditions during the treat |
April 10, 2001 |
| 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 generated as the pulse encounters the i |
| 6181847 |
Optical switch |
January 30, 2001 |
| 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 cap adapted to be disposed in a fir |
| 6166462 |
Bypass motor/fan assembly having separate working air passages |
December 26, 2000 |
| A bypass motor/fan assembly for use in applications where moisture laden air is encountered. A motor with a motor cooling fan has a fan end bracket received at one end thereof to isolate the motor and motor cooling fan from a working air fan received on the opposite side of the fan end |
| 6037688 |
Motor housing assembly having mating ramped surfaces with a diffuser plate for improved air flow |
March 14, 2000 |
| A molded through-flow motor assembly has a motor housing, including a cup portion and a flange portion. The flange portion includes a plurality of ramp surfaces extending outwardly therefrom. The cup portion has a field retaining wall and guide rib extending inwardly therefrom on opposit |
| 6036455 |
Motor frame assembly with alignment features |
March 14, 2000 |
| A motor frame assembly includes a motor housing having an end, a fan end bracket having a bracket shiplap, and a blower assembly having a blower shiplap. The end, the bracket shiplap and the blower shiplap alignable with each other to form a nested connection that provides at least radia |
| 5990594 |
Brush retaining clip and electrical connection |
November 23, 1999 |
| A combined commutator brush retainer clip and electrical connector includes a main body portion and a terminal portion. The main body portion has a recessed portion with a plurality of dimples therein. A commutator brush is electrically connected to a brush holder sleeve, and the brush h |
| 5988889 |
Bearing bore construction for fan end bracket |
November 23, 1999 |
| A motor fan bracket is molded of a fiber reinforced thermoset polyester. The motor/fan bracket has an annular frame and an annular bearing housing concentric with the frame and supported by inwardly extending arms. The annular bearing housing has a bearing-receiving cavity configured in |
| 5839374 |
Blower for generating static pressure |
November 24, 1998 |
| A blower fan assembly for removing combusted by-products and flue gas from a furnace is presented. The blower fan assembly includes a housing with a cavity for receiving a blower fan. The housing is secured over an opening in a furnace so that when the blower fan rotates, flue gas is dra |
