Patents by Inventor Alan Browne

Alan Browne 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).

  • Publication number: 20050201116
    Abstract: Disclosed herein is an adaptive head light assembly, comprising a parabolic reflector for housing a filament assembly; a lever arm having one end pivotably affixed to a bearing point of the parabolic reflector; an actuator in operative communication with the other end of the lever arm to actuate motion of the lever arm, wherein the actuator comprises a shape memory material adapted to change a shape orientation or modulus property upon receipt of an activation signal; and a spring in operative communication with the other end of the lever arm and adapted to provide a restoring force.
    Type: Application
    Filed: March 11, 2005
    Publication date: September 15, 2005
    Inventors: Alan Browne, Jan Aase, Nancy Johnson, Andrew Keefe
  • Publication number: 20050202248
    Abstract: Disclosed herein is a morphable molding comprising an active material in operative communication with a surface of the molding, wherein activation of the active material by an external stimulus is operative to change the shape of the molding. Disclosed herein too is a method of changing the shape of a molding comprising activating an active material that is in operative communication with the molding; changing the shape, dimensions and/or stiffness of the active material; and changing the shape, dimensions and/or stiffness of the molding.
    Type: Application
    Filed: March 10, 2005
    Publication date: September 15, 2005
    Inventors: Alan Browne, Nancy Johnson
  • Publication number: 20050200984
    Abstract: A mirror assembly includes a reflective surface disposed on a substrate; an actuator in operative communication with at least a portion of the substrate, wherein the actuator comprises an active material; and a controller in operative communication with the active material, wherein the controller is operable to selectively apply an activation signal to the active material and effect a change in a property of the active material, wherein the change in the property results in movement of the at least the portion of the substrate from a first position to a second position.
    Type: Application
    Filed: March 11, 2005
    Publication date: September 15, 2005
    Inventors: Alan Browne, Jan Aase, Nancy Johnson, James O'Kane, Chandra Namuduri, Andrew Keefe
  • Publication number: 20050198907
    Abstract: Active seal assemblies employing active materials that can be controlled and remotely changed to alter the seal effectiveness, wherein the active seal assemblies actively change modulus properties such as stiffness, shape orientation, and the like. In this manner, in seal applications such as a vehicle door application, door opening and closing efforts can be minimized yet seal effectiveness can be maximized.
    Type: Application
    Filed: March 9, 2005
    Publication date: September 15, 2005
    Inventors: Geoffrey McKnight, Cameron Massey, William Barvosa-Carter, Christopher Henry, Guillermo Herrera, Andrew Keefe, Alan Browne, Nancy Johnson
  • Publication number: 20050200067
    Abstract: Disclosed herein is a programmable shim 28 for positioning a work piece 12 comprising a first plate 30; an optional reference frame 32; and an actuator 34 in operative communication with the first plate 30 and the reference frame 32. Disclosed herein too is a method of aligning a work piece 12 comprising disposing the work piece 12 upon a first plate 30 of a programmable shim 28; activating an actuator 34 with an external stimulus; wherein the actuator 34 is in operative communication with the first plate 30; and displacing the work piece 12.
    Type: Application
    Filed: March 11, 2005
    Publication date: September 15, 2005
    Inventors: Alan Browne, Charles Wampler, Andrew Keefe, Nancy Johnson, John Cafeo, Gary Jones, William Barvosa-Carter, Nilesh Mankame
  • Publication number: 20050198774
    Abstract: Door closure assist assemblies that assist in providing a final closing motion generally includes an extender portion comprised of an active material adapted to linearly expand in response to an activation signal and a releasable fastener having one component in movable communication with the extender portion and a second component attached to the other selected one of the door and doorframe. During operation, the door closure assist assembly provides the final closing action.
    Type: Application
    Filed: March 9, 2005
    Publication date: September 15, 2005
    Inventors: Christopher Henry, William Barvosa-Carter, Alan Browne, Cameron Massey, Nancy Johnson
  • Publication number: 20050201567
    Abstract: An exhaust system includes an exhaust conduit; a piezoelectric patch secured to the exhaust conduit; a sensor in operative communication with the exhaust conduit; and a controller in operative communication with the piezoelectric patch and the sensor, wherein the controller is configured to provide a signal to the piezoelectric patch and modify a sound emitted from the exhaust system. A method includes producing an exhaust gas in an exhaust conduit of an exhaust system; measuring an acoustic property of the exhaust gas, an acoustic property of the exhaust conduit, or a combination comprising at least one of the foregoing acoustic properties; applying an electrical signal to a piezoelectric patch, wherein the piezoelectric patch is secured to the exhaust conduit; and deforming the piezoelectric patch mechanically to modulate a sound emitted from the exhaust system.
    Type: Application
    Filed: March 10, 2005
    Publication date: September 15, 2005
    Inventors: Alan Browne, Donald Nefske, Shung Sung
  • Publication number: 20050194815
    Abstract: An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as shape memory material, is operative to change at least one attribute in response to an activation signal. The active material can change its shape, dimensions and/or stiffness producing a change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness to control vehicle airflow to better suit changes in driving conditions such as weather, ground clearance and speed, while reducing maintenance and the level of failure modes. As such, the device reduces vehicle damage due to inadequate ground clearance, while increasing vehicle stability and fuel economy. An activation device, controller and sensors may be employed to further control the change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness of the device.
    Type: Application
    Filed: November 5, 2004
    Publication date: September 8, 2005
    Inventors: Geoffrey Mc Knight, Cameron Massey, Guillermo Herrera, William Barvosa-Carter, Nancy Johnson, Alan Browne
  • Publication number: 20050121240
    Abstract: An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as a shape memory material, is operative to change at least one attribute in response to an activation signal. The active material can change its shape, dimensions and/or stiffness producing a change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness to control vehicle airflow to better suit changes in driving conditions such as the need for increased airflow through the radiator due to increases in engine coolant temperature. As such, the device improves vehicle fuel economy while maintaining proper engine cooling. An activation device, controller and sensors may be employed to further control the change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness of the device.
    Type: Application
    Filed: June 18, 2004
    Publication date: June 9, 2005
    Inventors: Jan Aase, Alan Browne, Nancy Johnson, John Ulicny
  • Publication number: 20050121945
    Abstract: An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as shape memory material, is operative to change at least one attribute in response to an activation signal. The active material can change its shape, dimensions and/or stiffness producing a change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness to control vehicle airflow to better suit changes in driving conditions such as weather, ground clearance and speed, while reducing maintenance and the level of failure modes. As such, the device reduces vehicle damage due to inadequate ground clearance, while increasing vehicle stability and fuel economy. An activation device, controller and sensors may be employed to further control the change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness of the device.
    Type: Application
    Filed: July 15, 2004
    Publication date: June 9, 2005
    Inventors: Alan Browne, Nancy Johnson
  • Publication number: 20050121946
    Abstract: An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as shape memory material, is operative to change at least one attribute in response to an activation signal. The active material can change its shape, dimensions and/or stiffness producing a change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness to control vehicle airflow to better suit changes in driving conditions such as weather, ground clearance and speed, while reducing maintenance and the level of failure modes. As such, the device reduces vehicle damage due to inadequate ground clearance, while increasing vehicle stability and fuel economy. An activation device, controller and sensors may be employed to further control the change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness of the device.
    Type: Application
    Filed: November 5, 2004
    Publication date: June 9, 2005
    Inventors: Geoffrey McKnight, Cameron Massey, Guillermo Herrera, William Barvosa-Carter, Nancy Johnson, Alan Browne
  • Publication number: 20050110284
    Abstract: An extendable bumper system for a vehicle, the extendable bumper system comprising: a bumper structure; a laterally extending bumper segment slideably located within the bumper structure; and an actuator in operable communication between the bumper structure and the laterally extending bumper segment. An extendable bumper system for a modular vehicle, the extendable bumper system comprising: a bumper structure located on a moveable platform; a laterally extending bumper segment slideably located within the bumper structure; and a lateral bumper rail located on a body pod and configured to receive the laterally extending bumper segment.
    Type: Application
    Filed: November 24, 2003
    Publication date: May 26, 2005
    Inventors: Alan Browne, Nancy Johnson
  • Publication number: 20050104391
    Abstract: An impact absorbing device for a vehicle uses a shape memory material that can be heated to repair deformation from a relatively low speed, low energy impact and its stroking force and energy absorption can be tuned by heating. The shape memory material is suitably used in a crash box having an inserted impact absorbing ram, the box being placed, for example, between a bumper and strong body member. The shape memory material is attached to the box and ram for absorbing energy as the ram is driven into the box. Heating means is provided to repair or tune the shape memory material.
    Type: Application
    Filed: November 18, 2003
    Publication date: May 19, 2005
    Inventors: Alan Browne, Nancy Johnson, Mark Kramarczyk
  • Publication number: 20050087408
    Abstract: A magnetorheological damper device is provided having an increased shear interface area per unit volume of device, which enhances the stroking force of the damper.
    Type: Application
    Filed: October 22, 2003
    Publication date: April 28, 2005
    Inventors: Chandra Namuduri, Alan Browne, Nancy Johnson
  • Publication number: 20050087410
    Abstract: A tunable and reusable impact energy absorbing system and process includes a control structure comprising a sleeve having an outer surface fixedly attached to a chassis, a seal at each end of the sleeve, a magnetorheological fluid disposed between the seals, and a coil in proximity to the magnetorheological fluid, wherein the seal and the magnetorheological fluid are in sliding engagement with a support member, wherein the impact surface is fixedly attached to a support member. Varying the current to the coil alters the magnetic field upon the magnetorheological fluid, which can be used to tune the yield stress of the sliding engagement.
    Type: Application
    Filed: October 22, 2003
    Publication date: April 28, 2005
    Inventors: Chandra Namuduri, Alan Browne, John Ulicny
  • Publication number: 20050087409
    Abstract: A magnetorheological damper device is provided having an increased shear interface area per unit volume of the device, which enhances the stroking force of the damper. The damper generally includes a cylindrically shaped housing; a magnetorheological fluid disposed in the cylindrically shaped housing; a piston assembly disposed within the cylindrically shaped housing in sliding engagement with the cylindrically shaped housing defining a first chamber and a second chamber, wherein the piston assembly comprises a plurality of cylindrically shaped fluid passageways extending from the first chamber to the second chamber, and an electromagnet; and a power supply in electrical communication with the electromagnet.
    Type: Application
    Filed: October 22, 2003
    Publication date: April 28, 2005
    Inventors: Alan Browne, Nancy Johnson, Chandra Namuduri
  • Publication number: 20050000065
    Abstract: Processes for providing rapid release of a hook and loop type releasable fastener system comprise preconditioning the releasable fastener system to effect rapid release. In this manner, minimal energy and time is required for disengagement of the releasable fastener system.
    Type: Application
    Filed: July 1, 2003
    Publication date: January 6, 2005
    Inventors: Alan Browne, Nancy Johnson, Bob Powell, William Barvosa-Carter, Leslie Momoda, Thomas Stanford
  • Patent number: 6706094
    Abstract: A system for rapid collection of large volumes of dissolved gases from groundwater pumps the water from a large-diameter passage through a small-diameter restrictor passage, and then into a flow-through collection chamber. The small-diameter passage causes a drop in the hydrostatic pressure of the groundwater traveling therein, causing spontaneous ebullition of gas bubbles which are then collected in the collection chamber. Testing reveals that the gases are collected in proportion to their presence in the groundwater, and thus the system allows accurate quantification of concentrations of dissolved gas in groundwater. The system may beneficially be made easily portable, thereby allowing its use in the field as well as in laboratory settings.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: March 16, 2004
    Assignee: WiSys Technology Foundation Inc.
    Inventor: Bryant Alan Browne
  • Publication number: 20030209144
    Abstract: A system for rapid collection of large volumes of dissolved gases from groundwater pumps the water from a large-diameter passage through a small-diameter restrictor passage, and then into a flow-through collection chamber. The small-diameter passage causes a drop in the hydrostatic pressure of the groundwater traveling therein, causing spontaneous ebullition of gas bubbles which are then collected in the collection chamber. Testing reveals that the gases are collected in proportion to their presence in the groundwater, and thus the system allows accurate quantification of concentrations of dissolved gas in groundwater. The system may beneficially be made easily portable, thereby allowing its use in the field as well as in laboratory settings.
    Type: Application
    Filed: May 13, 2002
    Publication date: November 13, 2003
    Inventor: Bryant Alan Browne