Patents by Inventor Gary L. Durham
Gary L. Durham 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: 20190331088Abstract: A system for capturing fluid energy has a blade shaft coupled to a gear assembly and a blade assembly. The blade assembly has a rod arm and a blade having a front surface and a blade plane, the blade fixedly coupled substantially normal to the rod arm. A limiter coupling has a limiter coupling axis and is coupled to the blade such that the limiter coupling axis is substantially parallel to the front surface and perpendicular to the rod arm. A horizontal limiter restricts the limiter coupling to a range of motion substantially along a first movement axis perpendicular to the limiter coupling axis and substantially perpendicular to the blade shaft. The blade assembly interacts with a fluid flow to transmit fluid energy from the fluid flow to the blade shaft to impart rotational energy to the gear assembly.Type: ApplicationFiled: July 23, 2018Publication date: October 31, 2019Applicant: Just the 4 of Us, LLCInventors: Gary L. Durham, H. Stephen Durham
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Patent number: 10054105Abstract: A system for capturing fluid energy has a blade shaft coupled to a gear assembly and a blade assembly. The blade assembly has a rod arm and a blade having a front surface and a blade plane, the blade fixedly coupled substantially normal to the rod arm. A limiter coupling has a limiter coupling axis and is coupled to the blade such that the limiter coupling axis is substantially parallel to the front surface and perpendicular to the rod arm. A horizontal limiter restricts the limiter coupling to a range of motion substantially along a first movement axis perpendicular to the limiter coupling axis and substantially perpendicular to the blade shaft. The blade assembly interacts with a fluid flow to transmit fluid energy from the fluid flow to the blade shaft to impart rotational energy to the gear assembly.Type: GrantFiled: April 30, 2012Date of Patent: August 21, 2018Assignee: Just the 4 of Us, LLCInventors: Gary L. Durham, H. Stephen Durham
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Publication number: 20130287573Abstract: A system for capturing fluid energy has a blade shaft coupled to a gear assembly and a blade assembly. The blade assembly has a rod arm and a blade having a front surface and a blade plane, the blade fixedly coupled substantially normal to the rod arm. A limiter coupling has a limiter coupling axis and is coupled to the blade such that the limiter coupling axis is substantially parallel to the front surface and perpendicular to the rod arm. A horizontal limiter restricts the limiter coupling to a range of motion substantially along a first movement axis perpendicular to the limiter coupling axis and substantially perpendicular to the blade shaft. The blade assembly interacts with a fluid flow to transmit fluid energy from the fluid flow to the blade shaft to impart rotational energy to the gear assembly.Type: ApplicationFiled: April 30, 2012Publication date: October 31, 2013Applicant: Just the 4 of Us, LLCInventors: Gary L. Durham, H. Stephen Durham
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Publication number: 20120156032Abstract: A system comprises a main shaft configured to rotate about a main shaft axis, the main shaft comprising a hub. A first axle couples to the hub and rotates about a first axle axis in a first range of motion. A first wing couples to the first axle wherein the first range of motion orients the first wing within a range of attitudes bounded by and including a first attitude and a second attitude. The first attitude presents a first cross sectional surface area relative to a predetermined fluid flow direction and the second attitude presents a second cross sectional surface area relative to the predetermined fluid flow direction. The first cross sectional surface area is larger than the second cross sectional surface area. A second axle couples to the hub and rotates about a second axle axis in a second range of motion. The second axle axis is parallel to first axle axis and a second wing couples to the second axle.Type: ApplicationFiled: July 23, 2010Publication date: June 21, 2012Applicant: Just the 4 of US, LLCInventors: Gary L. Durham, H. Stephen Durham
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Publication number: 20110084492Abstract: A vertical propeller system for capturing wind energy includes a coupling module coupled to a drive shaft to impart rotational energy to the drive shaft. The drive shaft rotates about a substantially vertical main axis. A first blade couples to the coupling module and rotates about a first blade axis. The first blade progresses through a first continuous, repeating sequence of first blade orientations, which include a first substantially vertical orientation and a first substantially horizontal orientation. The first substantially vertical orientation presents a maximal cross-section to a wind stream, the wind stream having a wind direction. The first substantially horizontal orientation presents a minimal cross-section to the wind stream. The first blade revolves around the coupling module in response to the wind stream, based on the first blade orientation, imparting rotational energy to the coupling module.Type: ApplicationFiled: October 11, 2010Publication date: April 14, 2011Applicant: Just the 4 of Us, LLCInventors: Gary L. Durham, H. Stephen Durham
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Patent number: 7719154Abstract: A single field rotor motor comprising a rotor mounted for rotation with respect to a stator. The stator has a plurality of stator poles each having a coil for creating a magnetic pole force. The rotor has a plurality of circumferentially spaced salient rotor poles formed thereon, and has a first axial end and a second axial end. Magnetic means are provided for creating an unchanging, single polarity field on all of the rotor poles by inducing flux into the axial ends of the rotor. Circuit means for alternately charge said stator coils to alternate the polarity of a given stator pole to alternately attract and repel said rotor poles to produce rotation of said rotor.Type: GrantFiled: December 18, 2008Date of Patent: May 18, 2010Assignee: Tri-Seven Research, Inc.Inventors: Gary L. Durham, Harold S. Durham
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Patent number: 7608967Abstract: A single field rotor motor comprising a rotor mounted for rotation with respect to a stator. The stator has a plurality of stator poles each having a coil for creating a magnetic pole force. The rotor has a plurality of circumferentially spaced salient rotor poles formed thereon, wherein the flux within the rotor maintains a constant polarity. Magnetic means are provided for creating a pair of magnetic flux fields, wherein interaction of the pair of magnetic flux fields causes the magnetic flux fields to spray radially outward with respect to the rotor, thereby creating uniform magnetic polarity on the rotor poles. Circuit means are provided for alternately charging said stator coils to alternate the polarity of a given stator pole to alternately attract and repel said rotor poles to produce rotation of said rotor.Type: GrantFiled: May 30, 2006Date of Patent: October 27, 2009Assignee: Tri-Seven Research, Inc.Inventors: Gary L. Durham, Harold S. Durham
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Patent number: 7583000Abstract: A starting system and method for starting a salient-poled-rotor electric motor having a stator with a plurality of spaced salient poles, a plurality of field coils of unchanging polarity, and a plurality of armature coils, wherein each field coil of the plurality of field coils at least partially overlaps an armature coil of the plurality of armature coils, and wherein variable excitement of the armature coils alternately creates a magnetic pole force in every other pole of the plurality of spaced salient poles of the stator. In such motors, the stator has a first position, wherein the rotor is in stasis with respect to the stator and torque between the rotor and the stator is substantially minimized, and a second position, wherein torque between the rotor and the stator is substantially maximized. A drive circuit provides current to the field coils and the armature coils. A start circuit is provided for regulating the drive circuit to vibrate the rotor to the second position.Type: GrantFiled: August 8, 2006Date of Patent: September 1, 2009Assignee: Tri-Seven Research, Inc.Inventors: Gary L. Durham, Harold S. Durham
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Publication number: 20090091205Abstract: A single field rotor motor comprising a rotor mounted for rotation with respect to a stator. The stator has a plurality of stator poles each having a coil for creating a magnetic pole force. The rotor has a plurality of circumferentially spaced salient rotor poles formed thereon, and has a first axial end and a second axial end. Magnetic means are provided for creating an unchanging, single polarity field on all of the rotor poles by inducing flux into the axial ends of the rotor. Circuit means for alternately charge said stator coils to alternate the polarity of a given stator pole to alternately attract and repel said rotor poles to produce rotation of said rotor.Type: ApplicationFiled: December 18, 2008Publication date: April 9, 2009Inventors: Gary L. Durham, Harold S. Durham
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Patent number: 7514832Abstract: An electric motor having a single field rotor wherein the flux within the rotor is generated by magnetic means located at the end regions of the motor housing such that the flux within the motor rotor maintains a constant polarity.Type: GrantFiled: February 17, 2004Date of Patent: April 7, 2009Assignee: Tri-Seven Research, Inc.Inventors: Gary L. Durham, Harold S. Durham
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Publication number: 20070278887Abstract: A single field rotor motor comprising a rotor mounted for rotation with respect to a stator. The stator has a plurality of stator poles each having a coil for creating a magnetic pole force. The rotor has a plurality of circumferentially spaced salient rotor poles formed thereon, wherein the flux within the rotor maintains a constant polarity. Magnetic means are provided for creating a pair of magnetic flux fields, wherein interaction of the pair of magnetic flux fields causes the magnetic flux fields to spray radially outward with respect to the rotor, thereby creating uniform magnetic polarity on the rotor poles. Circuit means are provided for alternately charging said stator coils to alternate the polarity of a given stator pole to alternately attract and repel said rotor poles to produce rotation of said rotor.Type: ApplicationFiled: May 30, 2006Publication date: December 6, 2007Inventors: Gary L. Durham, Harold S. Durham
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Patent number: 7276831Abstract: An electric motor having a plurality of rotor and stator poles, the poles of one element being alternately polarized and neutralized due to the use of direct current and alternating current windings on each pole. The poles of like current are connected in series, and the direct current poles are energized in synchronization with the alternating current poles.Type: GrantFiled: December 10, 2002Date of Patent: October 2, 2007Assignee: Tri-Seven Research, Inc.Inventors: Gary L. Durham, Harold Stephen Durham
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Patent number: 6853110Abstract: The invention pertains to electrical machines of the electromagnetic type employing a stator and a rotatable such as electrical motors and generators, wherein magnetic forces imposed upon the rotor produce rotor rotation. Permanent magnets in either the stator or the rotor assembly are used to control the magnetic flux flow through the rotor in a radial direction, and the construction of the rotor and stator utilize poles which control the forces imposed upon the rotor such that the magnetic forces on the rotor primarily drive the rotor in its working direction, and counter-rotative forces which are common with conventional electrical machines are substantially eliminated by the utilization of flux directional control. Flux movement through the rotor is in a radial direction and high efficiencies and motor control are achieved.Type: GrantFiled: July 24, 2002Date of Patent: February 8, 2005Assignee: Tri-Seven Research, Inc.Inventors: Gary L. Durham, Harold Stephen Durham
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Patent number: 6707208Abstract: An electric motor utilizing permanent magnets, wherein the permanent magnets produce a flux circuit in a first direction and shunt elements whereby the magnets and shunt elements rotate relative to each other wherein the shunt elements sequentially interrupt the magnet flux circuit to minimize generated flux circuits tending to rotate the motor in a direction opposite to the primary direction of motor rotation.Type: GrantFiled: May 12, 2003Date of Patent: March 16, 2004Inventors: Gary L. Durham, Harold S. Durham
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Publication number: 20030230946Abstract: An electric motor utilizing permanent magnets, wherein the permanent magnets produce a flux circuit in a first direction and shunt elements whereby the magnets and shunt elements rotate relative to each other wherein the shunt elements sequentially interrupt the magnet flux circuit to minimize generated flux circuits tending to rotate the motor in a direction opposite to the primary direction of motor rotation.Type: ApplicationFiled: May 12, 2003Publication date: December 18, 2003Inventors: Gary L. Durham, Harold S. Durham
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Patent number: 6611078Abstract: The invention pertains to electrical machines of the electromagnetic type employing a stator and a rotatable rotor such as electric motors and generators wherein magnetic forces imposed upon the rotor produce rotor rotation. The invention utilizes permanent magnets in either the stator or rotor assembly to control the magnetic flux flow in one direction and encourage the flux in the opposite direction in certain areas of the stator and rotor assembly. Rotating flux conducting metal shunts are disposed adjacent permanent magnets creating magnetic flux to control the flux flow and pattern to most effectively use the flux forces on the rotor resulting in very high efficiencies in motor or generator operation.Type: GrantFiled: July 19, 2000Date of Patent: August 26, 2003Assignee: Tri-Seven Research, Inc.Inventors: Gary L. Durham, Harold S. Durham