Patents by Inventor Timothy S. Lucas
Timothy S. Lucas 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).
-
Patent number: 11965529Abstract: A linear fan including a fan blade attached a fan frame by a wire spring having a first end attached to the fan blade and a second end attached to the fan frame. The fan blade includes a free end such that the blade oscillates by pivoting on the wire spring. The the wire spring flexes to enable the fan blade to oscillate. The fan includes a motor for driving the oscillation of the fan blade. The motor includes an armature or permanent magnet connected to the fan blade and a stator assembly connected to the fan frame. The stator assembly includes a current carrying coil wrapped around a leg of a stator core. The motor is controlled to vary the direction of the current being carried in the coil to thereby change the direction of the magnetic field created by the stator assembly and cause the fan blade to oscillate.Type: GrantFiled: March 4, 2021Date of Patent: April 23, 2024Assignee: Neofan, Inc.Inventor: Timothy S. Lucas
-
Publication number: 20230349396Abstract: A linear fan blade assembly including a wire spring having a first end attached to a fan blade and a second end attached to a fan frame. The fan blade includes a free end such that the blade can oscillate by pivoting on the wire spring. The wire spring flexes to enable the fan blade to oscillate.Type: ApplicationFiled: December 2, 2020Publication date: November 2, 2023Applicant: PERPETUA, INC.Inventor: Timothy S. LUCAS
-
Patent number: 11788559Abstract: A cantilever fan including a blade and a blade permanent magnet. The blade is clamped at one end to a base and has a distal end which is free to oscillate with distal end having the largest swept displacement of any portion of the blade. The blade extends from the clamped end to the distal end. The blade permanent magnet is attached only to the blade at a point along the blade's length and is free to move with the blade. The fan includes a stationary permanent magnet attached only to the base. The respective locations and relative orientation of the blade permanent magnet and stationary magnet result in a repulsive magnetic force between the blade permanent magnet and stationary magnet. The fan is configured so that the repulsive force increases as the blade's deflection brings the blade permanent magnet closer to the stationary magnet.Type: GrantFiled: December 20, 2017Date of Patent: October 17, 2023Assignee: NeoFan, Inc.Inventor: Timothy S. Lucas
-
Publication number: 20230049263Abstract: A linear fan including a fan blade attached a fan frame by a wire spring having a first end attached to the fan blade and a second end attached to the fan frame. The fan blade includes a free end such that the blade oscillates by pivoting on the wire spring. The the wire spring flexes to enable the fan blade to oscillate. The fan includes a motor for driving the oscillation of the fan blade. The motor includes an armature or permanent magnet connected to the fan blade and a stator assembly connected to the fan frame. The stator assembly includes a current carrying coil wrapped around a leg of a stator core. The motor is controlled to vary the direction of the current being carried in the coil to thereby change the direction of the magnetic field created by the stator assembly and cause the fan blade to oscillate.Type: ApplicationFiled: March 4, 2021Publication date: February 16, 2023Applicant: Perpetua, Inc.Inventor: Timothy S. LUCAS
-
Publication number: 20200025217Abstract: A cantilever fan including a blade and a blade permanent magnet. The blade is clamped at one end to a base and has a distal end which is free to oscillate with distal end having the largest swept displacement of any portion of the blade. The blade extends from the clamped end to the distal end. The blade permanent magnet is attached only to the blade at a point along the blade's length and is free to move with the blade. The fan includes a stationary permanent magnet attached only to the base. The respective locations and relative orientation of the blade permanent magnet and stationary magnet result in a repulsive magnetic force between the blade permanent magnet and stationary magnet. The fan is configured so that the repulsive force increases as the blade's deflection brings the blade permanent magnet closer to the stationary magnet.Type: ApplicationFiled: December 20, 2017Publication date: January 23, 2020Applicant: Perpetua, Inc.Inventor: Timothy S. LUCAS
-
Patent number: 9523367Abstract: A cantilever fan including a cantilever blade that is clamped at one end. The fan includes an actuator that applies a periodic force to the blade resulting in periodic deflections of the blade.Type: GrantFiled: August 19, 2011Date of Patent: December 20, 2016Assignee: Aavid Thermalloy, LLCInventor: Timothy S. Lucas
-
Publication number: 20140252120Abstract: A synthetic jet ejector (201) is provided which includes a housing assembly (239, 241) which is equipped with a first plurality of openings (203, 207) and a second plurality of openings (205, 209), and a diaphragm assembly disposed within the housing assembly. The diaphragm assembly includes first (229) and second (243) armatures, a coil (235) disposed between the first and second armatures, first (221) and second (255) end caps, a first diaphragm (223) disposed between the first end cap and the first armature, and a second diaphragm (249) disposed between the second end cap and the second armature. The first and second diaphragms contain a first set of keying features (273) which keys them to the housing assembly. The synthetic jet ejector emits a first plurality of synthetic jets out of the first plurality of openings, and emits a second plurality of synthetic jets out of the second plurality of openings.Type: ApplicationFiled: March 10, 2014Publication date: September 11, 2014Applicant: NUVENTIX, INC.Inventors: Timothy S. Lucas, Stephen P. Darbin, Raghavendran Mahalingam, Andrew Poynot, Daniel N. Grimm, Randall P. Williams
-
Publication number: 20130230419Abstract: A fluid mover includes a first dynamic armature attached to a flexible member and a second dynamic armature attached to a second flexible member. The fluid mover also includes a housing and first and second flexible members being attached to the housing so as to form a fluid chamber volume bounded by the housing and first and second flexible members. A stationary current carrying coil positioned between first and second armatures. The current carried by the coil generates a magnetic force acting on the armatures and wherein coil and armatures are positioned and configured so as to ensure that the instantaneous magnetic force experienced by the two armatures will always be identical regardless of the relative positions of the armatures and regardless of the time varying properties of the current.Type: ApplicationFiled: October 7, 2011Publication date: September 5, 2013Inventor: Timothy S. Lucas
-
Publication number: 20130183154Abstract: A cantilever fan including a cantilever blade that is clamped at one end. The fan includes an actuator that applies a periodic force to the blade resulting in periodic deflections of the blade.Type: ApplicationFiled: March 1, 2012Publication date: July 18, 2013Inventor: Timothy S. Lucas
-
Publication number: 20130039787Abstract: An energy transfer fluid diaphragm including a diaphragm substrate including cutouts. The cutouts are covered with a sealing layer bonded to the diaphragm substrate. The cutouts are configured to bend thereby allowing displacement of a center portion of the diaphragm. The displacement of the center portion transfers energy to a fluid located adjacent to the diaphragm.Type: ApplicationFiled: January 25, 2011Publication date: February 14, 2013Applicant: Influent CorporationInventor: Timothy S. Lucas
-
Patent number: 8272851Abstract: A fluid energy transfer device, including a chamber for receiving a fluid, at least a portion of the chamber comprising a movable portion relative to another portion of the chamber, the movable portion being adapted to change the volume of the chamber from a first volume to a second volume by movement of the movable portion. The device further includes an actuator attached to the movable portion, wherein the displacements of the movable portion can be larger than the displacement of the actuator.Type: GrantFiled: March 7, 2007Date of Patent: September 25, 2012Assignee: Influent CorporationInventor: Timothy S. Lucas
-
Publication number: 20090148320Abstract: A fluid energy transfer device, including a chamber for receiving a fluid, at least a portion of the chamber comprising a movable portion relative to another portion of the chamber, the movable portion being adapted to change the volume of the chamber from a first volume to a second volume by movement of the movable portion. The device further includes an actuator attached to the movable portion, wherein the displacements of the movable portion can be larger than the displacement of the actuator.Type: ApplicationFiled: March 7, 2007Publication date: June 11, 2009Inventor: Timothy S. Lucas
-
Publication number: 20080304979Abstract: A fluid energy transfer device, including a chamber for receiving a fluid, at least a portion of the chamber comprising a movable portion relative to another portion of the chamber, the movable portion being adapted to change the volume of the chamber from a first volume to a second volume by movement of the movable portion. The device further includes a bender actuator attached to the movable portion, wherein the bender actuator is at least one of (i) connected directly to the movable portion and (ii) linked to the movable portion, to form a bender-movable portion assembly, wherein the bender is effectively not connected and effectively not linked to any other component of the device other than the movable portion, and wherein the bender-movable portion assembly is adapted to move substantially only due to oscillation of the bender at a drive frequency.Type: ApplicationFiled: December 22, 2005Publication date: December 11, 2008Inventor: Timothy S. Lucas
-
Patent number: 6230420Abstract: Physical effects produced within RMS resonators are utilized as a means to process materials within the resonator including for example one or more of comminution, converting liquids into vapors and gases, drying of powders, rapid mixing of gases and various materials, agglomeration, de-agglomeration, granulation, chemical reactions, stratification/separation, and the destruction of biological material.Type: GrantFiled: November 2, 1998Date of Patent: May 15, 2001Assignee: Macrosonix CorporationInventors: Christopher C. Lawrenson, Timothy S. Lucas, Thomas W. VanDoren, James N. Wisner
-
Patent number: 6163077Abstract: An energy conversion device comprises an acoustic resonator, a pulse combustion device for creating a standing wave within said resonator, and an electric alternator. The alternate is coupled to the resonator to convert acoustically driven mechanical vibrations into electrical power.Type: GrantFiled: January 12, 1999Date of Patent: December 19, 2000Assignee: Macrosonix CorporationInventor: Timothy S. Lucas
-
Patent number: 5994854Abstract: A vibrational acoustic unit comprises a dynamic force motor, a power take-off spring having one end attached to the dynamic force motor and the other end attached to a fluid filled acoustic resonator. The motor oscillates the entire acoustic resonator so as to excite a resonant mode of the acoustic resonator.A method of delivering power to an acoustic resonator comprises resiliently connecting a motor to the resonator, and driving the motor to oscillate the entire acoustic resonator so as to excite a resonant mode of the acoustic resonator.Type: GrantFiled: November 26, 1997Date of Patent: November 30, 1999Assignee: MacroSonix CorporationInventors: Christopher C. Lawrenson, Thomas W. Van Doren, F. Joseph Keith, Timothy S. Lucas
-
Patent number: 5892293Abstract: An energy conversion device comprises an acoustic resonator, a pulse combustion device for creating a standing wave within said resonator, and an electric alternator. The alternator is coupled to the resonator to convert acoustically driven mechanical vibrations into electrical power.Type: GrantFiled: January 15, 1997Date of Patent: April 6, 1999Assignee: Macrosonix CorporationInventor: Timothy S. Lucas
-
Patent number: 5579399Abstract: An acoustic resonator includes a chamber which contains a fluid. The chamber has a geometry which produces self-destructive interference of at least one harmonic in the fluid to avoid shock wave formation at finite acoustic pressure amplitudes. The chamber can have reflective terminations at each end or a reflective termination at only one end. A driver mechanically oscillates the chamber at a frequency of a selected resonant mode of the chamber. The driver may be a moving piston coupled to an open end of the chamber, an electromagnetic shaker or an electromagnetic driver.Type: GrantFiled: July 22, 1994Date of Patent: November 26, 1996Assignee: Macrosonix CorporationInventor: Timothy S. Lucas
-
Patent number: 5515684Abstract: An acoustic resonator includes a chamber containing a fluid. The chamber has anharmonic resonant modes and provides boundary conditions which predetermine the harmonic phases and amplitudes needed to synthesize a non-sinusoidal, unshocked waveform.Type: GrantFiled: September 27, 1994Date of Patent: May 14, 1996Assignee: Macrosonix CorporationInventors: Timothy S. Lucas, Thomas W. Van Doren
-
Patent number: 5357757Abstract: A compressor for compression-evaporation cooling systems, which requires no moving parts. A gaseous refrigerant inside a chamber is acoustically compressed and conveyed by means of a standing acoustic wave which is set up in the gaseous refrigerant. This standing acoustic wave can be driven either by a transducer, or by direct exposure of the gas to microwave and infrared sources, including solar energy. Input and output ports arranged along the chamber provide for the intake and discharge of the gaseous refrigerant. These ports can be provided with optional valve arrangements, so as to increase the compressor's pressure differential. The performance of the compressor in either of its transducer or electromagnetically driven configurations, can be optimized by a controlling circuit. This controlling circuit holds the wavelength of the standing acoustical wave constant, by changing the driving frequency in response to varying operating conditions.Type: GrantFiled: October 26, 1993Date of Patent: October 25, 1994Assignee: Macrosonix Corp.Inventor: Timothy S. Lucas