Patents by Inventor George Field
George Field has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20180347591Abstract: An apparatus for balancing a fan or other spinning product may comprise a motor for spinning the fan, an accelerometer for gathering sampling data from the fan while it is spinning, a laser source, a laser redirection platform comprising a spinning mirror configured to track the rotational speed of the spinning fan, and a control module. The fan and laser redirection platform may each have an index hole for tracking, using respective photocell transmitters and receivers, rotational speed and phase. The control module may direct the fan motor to spin up the fan, collect balance data, and determine a location on the fan for burning a hole to correct imbalance. The control module may direct the laser redirection platform to spin at the same rpm as the fan, and such that a laser redirection mirror directs a laser beam from the laser source toward the target burn location on the fan.Type: ApplicationFiled: June 6, 2018Publication date: December 6, 2018Applicant: International Vibration Technology, L.L.C.Inventors: Norman Serrano, George Field, Nathan Godwin, Duane Hall
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Patent number: 8757238Abstract: Various apparatuses, methods and systems for directionally controlling a movable partition are provided. In one embodiment, an apparatus may include at least one roller assembly coupled to a portion of a movable partition. A roller element of the roller assembly may be configured to maintain contact with an adjacent surface (e.g., a floor) while the partition is displaced along a desired path even though the adjacent surface may exhibit unevenness, undulations or other substantially nonplanar surface features. In one embodiment, the apparatus may be configured to maintain a substantially constant force between the roller element and the adjacent surface. In another embodiment, the apparatus may be configured to maintain a force between the roller element and the adjacent surface substantially within a specified range. A steering actuator may also be used to select, or change, the orientation of the roller assembly with respect to the partition.Type: GrantFiled: May 20, 2013Date of Patent: June 24, 2014Assignee: Won-Door CorporationInventors: E. Carl Goodman, D. George Field, Kevin D. Banta
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Publication number: 20130248123Abstract: Various apparatuses, methods and systems for directionally controlling a movable partition are provided. In one embodiment, an apparatus may include at least one roller assembly coupled to a portion of a movable partition. A roller element of the roller assembly may be configured to maintain contact with an adjacent surface (e.g., a floor) while the partition is displaced along a desired path even though the adjacent surface may exhibit unevenness, undulations or other substantially nonplanar surface features. In one embodiment, the apparatus may be configured to maintain a substantially constant force between the roller element and the adjacent surface. In another embodiment, the apparatus may be configured to maintain a force between the roller element and the adjacent surface substantially within a specified range. A steering actuator may also be used to select, or change, the orientation of the roller assembly with respect to the partition.Type: ApplicationFiled: May 20, 2013Publication date: September 26, 2013Applicant: Won-Door CorporationInventors: E. Carl Goodman, D. George Field, Kevin D. Banta
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Patent number: 8522853Abstract: In one embodiment, a closure assembly for a fire door, including a first lead post having a longitudinal cavity located therein, an opening extending through a wall of the first lead post into the longitudinal cavity and a locking member may be positioned within the longitudinal cavity that is configured to obstruct the opening into the longitudinal cavity upon reaching a predetermined temperature, is disclosed. In additional embodiments, fire doors including such closure assemblies and methods of locking fire doors are disclosed.Type: GrantFiled: October 21, 2009Date of Patent: September 3, 2013Assignee: Won-Door CorporationInventors: W. Michael Coleman, Duane O. Hall, E. Carl Goodman, Michael D. George, D. George Field
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Patent number: 8493033Abstract: Apparatuses, systems, and methods for providing battery-backed power to movable partitions are disclosed. A power converter generates a DC output from an AC input. The DC output may be selectively decoupled from an enabled DC output such that the DC output can be monitored for acceptable operation in-situ. The enabled DC output may be selectively coupled to a battery output terminal. A charge current may be sensed between the enabled DC output and the battery output to control charging of the battery with a pulse-width modulation operation by controlling the selective coupling of the enabled DC output to the battery output. The enabled DC output and the battery output are coupled in a logical-OR configuration to generate a supply output providing current from the enabled DC output and the battery. The supply output may drive a movable partition controller and a motor configured for opening and closing a movable partition.Type: GrantFiled: August 24, 2010Date of Patent: July 23, 2013Assignee: Won-Door CorporationInventors: Kevin D. Banta, D. George Field, E. Carl Goodman
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Patent number: 8459387Abstract: A material handling vehicle includes a cyclonic motor cooling system for a motor compartment that accommodates an ergonomically designed operator compartment. Together, the motor compartment and cyclonic motor cooling system include a generally cylindrical housing with a tangentially arranged cooling air injection port at a lower end and exhaust port at a radially and axially opposite end. An air blower directs cooling air into the compartment where a cyclonic cooling air flow and a vortex cooling flow is produced. The cyclonic air flow cools more effectively than conventional linear air flow while also reducing dust contamination and buildup of the motors in the motor compartment.Type: GrantFiled: December 21, 2011Date of Patent: June 11, 2013Assignee: The Raymond CorporationInventor: Michael George Field
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Patent number: 8448688Abstract: Various apparatuses, methods and systems for directionally controlling a movable partition are provided. In one embodiment, an apparatus may include at least one roller assembly coupled to a portion of a movable partition. A roller element of the roller assembly may be configured to maintain contact with an adjacent surface (e.g., a floor) while the partition is displaced along a desired path even though the adjacent surface may exhibit unevenness, undulations or other substantially nonplanar surface features. In one embodiment, the apparatus may be configured to maintain a substantially constant force between the roller element and the adjacent surface. In another embodiment, the apparatus may be configured to maintain a force between the roller element and the adjacent surface substantially within a specified range. A steering actuator may also be used to select, or change, the orientation of the roller assembly with respect to the partition.Type: GrantFiled: April 7, 2010Date of Patent: May 28, 2013Assignee: Won-Door CorporationInventors: E. Carl Goodman, D. George Field, Kevin D. Banta
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Patent number: 8368340Abstract: Systems, devices, and methods for controlling a motor are disclosed. A method may include determining a rotational direction of a motor from a pair of quadrature signals sent to a microprocessor. The method further includes adjusting an internal count stored in the microprocessor at each edge of each of the pair of quadrature signals. The method further includes adjusting an external count stored in the microprocessor and transmitting an interrupt to a main controller after the first phase signal and the second phase signal have transitioned through each combinational logic state in one of a forward rotational direction and a reverse rotational direction. The method further includes transmitting a signal comprising the rotational direction of the motor and the external count from the microprocessor to a main controller.Type: GrantFiled: February 3, 2012Date of Patent: February 5, 2013Assignee: Won-Door CorporationInventors: Kevin D. Banta, D. George Field, E. Carl Goodman, Duane O. Hall
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Patent number: 8279565Abstract: Systems and methods for providing overcurrent circuit protection are disclosed. A method of providing overcurrent circuit protection may include setting a threshold current value according to an operational state of a motor and sensing an amount of current being supplied to the motor. The method may further include electrically isolating the motor from a current source if the sensed current amount is greater than the threshold current value.Type: GrantFiled: February 20, 2009Date of Patent: October 2, 2012Assignee: Won-Door corporationInventors: Duane O. Hall, D. George Field, E. Carl Goodman, Kevin D. Banta
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Patent number: 8278862Abstract: Motor control systems comprise a motor control circuit, a processing circuit operably coupled to the motor control circuit, and a current sensor operably coupled to the processing circuit. The current sensor may be configured to sense a current and to convey a signal to the processing circuitry proportional to an amount of current sensed. The processing circuitry may be configured to sample the signal to obtain a plurality of current values, to store the plurality of current values and to generate an operation profile from the plurality of current values. Folding partitions comprising motor control systems are also disclosed, as well as methods of monitoring an operation of an electric motor and of monitoring for an obstruction of a folding partition.Type: GrantFiled: July 10, 2009Date of Patent: October 2, 2012Assignee: Won-Door CorporationInventors: W. Michael Coleman, Duane O. Hall, E. Carl Goodman, Michael D. George, D. George Field
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Publication number: 20120133319Abstract: Systems, devices, and methods for controlling a motor are disclosed. A method may include determining a rotational direction of a motor from a pair of quadrature signals sent to a microprocessor. The method further includes adjusting an internal count stored in the microprocessor at each edge of each of the pair of quadrature signals. The method further includes adjusting an external count stored in the microprocessor and transmitting an interrupt to a main controller after the first phase signal and the second phase signal have transitioned through each combinational logic state in one of a forward rotational direction and a reverse rotational direction. The method further includes transmitting a signal comprising the rotational direction of the motor and the external count from the microprocessor to a main controller.Type: ApplicationFiled: February 3, 2012Publication date: May 31, 2012Applicant: WON-DOOR CORPORATIONInventors: Kevin D. Banta, D. George Field, E. Carl Goodman, Duane O. Hall
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Publication number: 20120085509Abstract: A material handling vehicle includes a cyclonic motor cooling system for a motor compartment that accommodates an ergonomically designed operator compartment. Together, the motor compartment and cyclonic motor cooling system include a generally cylindrical housing with a tangentially arranged cooling air injection port at a lower end and exhaust port at a radially and axially opposite end. An air blower directs cooling air into the compartment where a cyclonic cooling air flow and a vortex cooling flow is produced. The cyclonic air flow cools more effectively than conventional linear air flow while also reducing dust contamination and buildup of the motors in the motor compartment.Type: ApplicationFiled: December 21, 2011Publication date: April 12, 2012Inventor: Michael George Field
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Patent number: 8136618Abstract: A material handling vehicle includes a cyclonic motor cooling system for a motor compartment that accommodates an ergonomically designed operator compartment. Together, the motor compartment and cyclonic motor cooling system include a generally cylindrical housing with a tangentially arranged cooling air injection port at a lower end and exhaust port at a radially and axially opposite end. An air blower directs cooling air into the compartment where a cyclonic cooling air flow and a vortex cooling flow is produced. The cyclonic air flow cools more effectively than conventional linear air flow while also reducing dust contamination and buildup of the motors in the motor compartment.Type: GrantFiled: January 21, 2009Date of Patent: March 20, 2012Assignee: The Raymond CorporationInventor: Michael George Field
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Patent number: 8115427Abstract: Systems, devices, and methods for controlling a motor are disclosed. A method may include determining a rotational direction of a motor from a pair of quadrature signals sent to a microprocessor. The method further includes adjusting an internal count stored in the microprocessor at each edge of each of the pair of quadrature signals. The method further includes adjusting an external count stored in the microprocessor and transmitting an interrupt to a main controller after a first phase signal and a second phase signal have transitioned through each combinational logic state in one of a forward rotational direction and a reverse rotational direction. The method further includes transmitting a signal comprising the rotational direction of the motor and the external count from the microprocessor to a main controller.Type: GrantFiled: October 23, 2008Date of Patent: February 14, 2012Assignee: Won-Door CorporationInventors: Kevin D. Banta, D. George Field, E. Carl Goodman, Duane O. Hall
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Publication number: 20110093095Abstract: Various apparatuses, methods and systems for directionally controlling a movable partition are provided. In one embodiment, an apparatus may include at least one roller assembly coupled to a portion of a movable partition. A roller element of the roller assembly may be configured to maintain contact with an adjacent surface (e.g., a floor) while the partition is displaced along a desired path even though the adjacent surface may exhibit unevenness, undulations or other substantially nonplanar surface features. In one embodiment, the apparatus may be configured to maintain a substantially constant force between the roller element and the adjacent surface. In another embodiment, the apparatus may be configured to maintain a force between the roller element and the adjacent surface substantially within a specified range. A steering actuator may also be used to select, or change, the orientation of the roller assembly with respect to the partition.Type: ApplicationFiled: April 7, 2010Publication date: April 21, 2011Applicant: WON-DOOR CORPORATIONInventors: E. Carl Goodman, D. George Field, Kevin D. Banta
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Publication number: 20110088322Abstract: In one embodiment, a closure assembly for a fire door, including a first lead post having a longitudinal cavity located therein, an opening extending through a wall of the first lead post into the longitudinal cavity and a locking member may be positioned within the longitudinal cavity that is configured to obstruct the opening into the longitudinal cavity upon reaching a predetermined temperature, is disclosed. In additional embodiments, fire doors including such closure assemblies and methods of locking fire doors are disclosed.Type: ApplicationFiled: October 21, 2009Publication date: April 21, 2011Applicant: WON-DOOR CORPORATIONInventors: W. Michael Coleman, Duane O. Hall, E. Carl Goodman, Michael D. George, D. George Field
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Publication number: 20110036513Abstract: Apparatuses, systems, and methods for providing battery-backed power to movable partitions are disclosed. A power converter generates a DC output from an AC input. The DC output may be selectively decoupled from an enabled DC output such that the DC output can be monitored for acceptable operation in-situ. The enabled DC output may be selectively coupled to a battery output terminal. A charge current may be sensed between the enabled DC output and the battery output to control charging of the battery with a pulse-width modulation operation by controlling the selective coupling of the enabled DC output to the battery output. The enabled DC output and the battery output are coupled in a logical-OR configuration to generate a supply output providing current from the enabled DC output and the battery. The supply output may drive a movable partition controller and a motor configured for opening and closing a movable partition.Type: ApplicationFiled: August 24, 2010Publication date: February 17, 2011Applicant: WON-DOOR CORPORATIONInventors: Kevin D. Banta, D. George Field, E. Carl Goodman
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Publication number: 20110005689Abstract: Motor control systems comprise a motor control circuit, a processing circuit operably coupled to the motor control circuit, and a current sensor operably coupled to the processing circuit. The current sensor may be configured to sense a current and to convey a signal to the processing circuitry proportional to the amount of current sensed. The processing circuitry may be configured to sample the signal to obtain a plurality of current values, to store the plurality of current values and to generate an operation profile from the plurality of current values. Folding partitions comprising motor control systems are also disclosed, as well as methods of monitoring the operation of an electric motor and of monitoring for an obstruction of a folding partition.Type: ApplicationFiled: July 10, 2009Publication date: January 13, 2011Applicant: Won-Door CorporationInventors: W. Michael Coleman, Duane O. Hall, E. Carl Goodman, Michael D. George, D. George Field
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Patent number: RE45100Abstract: A low cost room temperature electrochemical gas sensor for sensing CO and other toxic analyte gases has a solid protonic conductive membrane with a low bulk ionic resistance. A sensing electrode and a count counter electrode, which are separated by the membrane, can be made of mixed protonic-electronic conductors. Embodiments of the inventive sensor also include an electrochemical analyte gas pump to transport the analyte gas away from the counter electrode side of the sensor. Analyte gas pumps for the inventive sensor include dual pumping electrodes situated on opposite sides of the membrane, and include a means for applying a DC power across the membrane to the sensing and counter electrodes. Another embodiment of the inventive sensor has first and second solid protonic conductive membranes, one of which has a sensing electrode and a counter electrode separated by the first membrane, and the other of which has dual pumping electrodes situated on opposite sides of the second membrane.Type: GrantFiled: July 17, 2003Date of Patent: September 2, 2014Assignee: Atwood Mobile Products Inc.Inventors: Yousheng Shen, Franco Consadori, D. George Field
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Patent number: RE45186Abstract: A low cost room temperature electrochemical gas sensor with humidity compensation for sensing CO, alcohol vapors and other toxic analyte gases has a solid protonic conductive membrane with a low bulk ionic resistance. A sensing electrode and a counter electrode, optionally a counter electrode and a reference electrode, which are separated by the membrane, can be made of mixed protonic-electronic conductors, or can be made of a thin electrically conducting film such as platinum. A reservoir of water maintain the solid protonic conductive membrane at constant 100 percent relative humidity to compensate for ambient humidity changes. Embodiments of the inventive sensor also include an electrochemical analyte gas pump to transport the analyte gas away from the counter electrode side of the sensor.Type: GrantFiled: July 17, 2003Date of Patent: October 14, 2014Assignee: Atwood Mobile Products Inc.Inventors: Yousheng Shen, Franco Consadori, D. George Field