| Patent Number |
Title Of Patent |
Date Issued |
| 7608989 |
Compliant electroactive polymer transducers for sonic applications |
October 27, 2009 |
| Described herein are compliant electroactive polymer transducers for use in acoustic applications. A compliant electroactive polymer transducer includes a compliant electroactive polymer at least two electrodes. For sound production, circuitry in electrical communication with the tra |
| 7598652 |
Mechanical meta-materials |
October 6, 2009 |
| The present invention provides meta-materials with an actively controllable mechanical property. The meta-material includes a deformable structure and a set of activation elements. The activation elements are controllable between multiple states. The meta-material includes a first va |
| 7598651 |
Mechanical meta-materials |
October 6, 2009 |
| The present invention provides meta-materials with an actively controllable mechanical property. The meta-material includes a deformable structure and a set of activation elements. The activation elements are controllable between multiple states. The meta-material includes a first va |
| 7567681 |
Surface deformation electroactive polymer transducers |
July 28, 2009 |
| The present invention provides electroactive polymer transducers that produce out-of-plane deflections. The transducers form a set of surface features based on deflection of an electroactive polymer. The set of surface features may include elevated polymer surface features and/or dep |
| 7557456 |
Wave powered generation using electroactive polymers |
July 7, 2009 |
| Described herein are systems and methods that use an electroactive polymer transducer to convert mechanical energy, originally contained in one or more waves, to electrical energy. Marine devices described herein may employ a mechanical energy conversion system that transfers mechanical |
| 7554787 |
Wall crawling devices |
June 30, 2009 |
| Described herein is electroadhesion technology that permits controllable adherence between two objects. Electroadhesion uses electrostatic forces of attraction produced by an electrostatic adhesion voltage, which is applied using electrodes in an electroadhesive device. The electrostatic |
| 7551419 |
Electroadhesion |
June 23, 2009 |
| Described herein is electroadhesion technology that permits controllable adherence between two objects. Electroadhesion uses electrostatic forces of attraction produced by an electrostatic adhesion voltage, which is applied using electrodes in an electroadhesive device. The electrostatic |
| 7538445 |
Wave powered generation |
May 26, 2009 |
| Described herein are marine devices and methods that convert mechanical energy in one or more waves to mechanical energy that is better suited for conversion into electrical energy. The marine devices employ a mechanical energy conversion system that harnesses wave energy and convert |
| 7485978 |
Compliant walled combustion devices for producing mechanical and electrical energy |
February 3, 2009 |
| Combustion devices described herein comprise a compliant combustion chamber wall or segment. The compliant segment deforms during combustion in the combustion chamber. Some devices may include a compliant wall configured to stretch responsive to pressure generated by combustion of a |
| 7468575 |
Electroactive polymer electrodes |
December 23, 2008 |
| Described herein are transducers, their use and fabrication. The transducers convert between mechanical and electrical energy. The present invention further relates to compliant electrodes that conform to the shape of a polymer included in a transducer. |
| 7456549 |
Electroactive polymer motors |
November 25, 2008 |
| The present invention relates to mechanical-electrical power conversion systems. The systems comprise one or more electroactive polymers that convert between electrical and mechanical energy. When a voltage is applied to electrodes contacting an electroactive polymer, the polymer def |
| 7411332 |
Electroactive polymer animated devices |
August 12, 2008 |
| The present invention relates to animated devices that include one or more electroactive polymer transducers. When actuated by electrical energy, an electroactive polymer produces mechanical deflection in one or more directions. This deflection may be used to produce motion of a feature |
| 7378783 |
Electroactive polymer torsional device |
May 27, 2008 |
| The present invention relates to mechanical-electrical power conversion systems. The systems comprise one or more electroactive polymers that convert between electrical and mechanical energy. When a voltage is applied to electrodes contacting an electroactive polymer, the polymer def |
| 7368862 |
Electroactive polymer generators |
May 6, 2008 |
| The present invention relates to transducers, their use and fabrication. The transducers convert between mechanical and electrical energy. Some transducers of the present invention include a pre-strained polymer. The pre-strain improves the conversion between electrical and mechanical |
| 7259503 |
Electroactive polymers |
August 21, 2007 |
| The present invention relates to transducers, their use and fabrication. The transducers convert between mechanical and electrical energy. Some transducers of the present invention include a pre-strained polymer. The pre-strain improves the conversion between electrical and mechanical |
| 7224106 |
Electroactive polymers |
May 29, 2007 |
| The present invention relates to transducers, their use and fabrication. The transducers convert between mechanical and electrical energy. Some transducers of the present invention include a pre-strained polymer. The pre-strain improves the conversion between electrical and mechanical |
| 7211937 |
Electroactive polymer animated devices |
May 1, 2007 |
| The present invention relates to animated devices that include one or more electroactive polymer transducers. When actuated by electrical energy, an electroactive polymer produces mechanical deflection in one or more directions. This deflection may be used to produce motion of a feature |
| 7199501 |
Electroactive polymers |
April 3, 2007 |
| The present invention relates to transducers, their use and fabrication. The transducers convert between mechanical and electrical energy. Some transducers of the present invention include a pre-strained polymer. The pre-strain improves the conversion between electrical and mechanical |
| 7166953 |
Electroactive polymer rotary clutch motors |
January 23, 2007 |
| The present invention relates to mechanical-electrical power conversion systems. The systems comprise one or more electroactive polymers that convert between electrical and mechanical energy. When a voltage is applied to electrodes contacting an electroactive polymer, the polymer def |
| 7062055 |
Elastomeric dielectric polymer film sonic actuator |
June 13, 2006 |
| A sonic actuator including a multi-layer membrane having a non-metallic elastomeric dielectric polymer layer with a first surface and a second surface, a first compliant electrode layer contacting the first surface of the polymer layer, and a second compliant electrode layer contacting |
| 7052594 |
Devices and methods for controlling fluid flow using elastic sheet deflection |
May 30, 2006 |
| The invention relates to devices that control fluid flow, which comprise a substrate having an upper surface adapted to contact a flowing fluid and an elastic sheet immobilized with respect to the substrate, typically at a minimum of two immobilization points. The elastic sheet has a |
| 7049732 |
Electroactive polymers |
May 23, 2006 |
| The present invention relates to transducers, their use and fabrication. The transducers convert between mechanical and electrical energy. Some transducers of the present invention include a pre-strained polymer. The pre-strain improves the conversion between electrical and mechanical |
| 7034432 |
Electroactive polymer generators |
April 25, 2006 |
| The present invention relates to transducers, their use and fabrication. The transducers convert between mechanical and electrical energy. Some transducers of the present invention include a pre-strained polymer. The pre-strain improves the conversion between electrical and mechanical |
| 6940211 |
Electroactive polymers transducers and actuators |
September 6, 2005 |
| The present invention relates to electroactive polymers that are pre-strained to improve conversion from electrical to mechanical energy. When a voltage is applied to electrodes contacting a pre-strained polymer, the polymer deflects. This deflection may be used to do mechanical work. |
| 6911764 |
Energy efficient electroactive polymers and electroactive polymer devices |
June 28, 2005 |
| The present invention relates to polymers that convert between electrical and mechanical energy. When a voltage is applied to electrodes contacting an electroactive polymer, the polymer deflects. This deflection may be used to do mechanical work. Similarly, when a previously charged |
| 6891317 |
Rolled electroactive polymers |
May 10, 2005 |
| The invention describes rolled electroactive polymer devices. The invention also describes employment of these devices in a wide array of applications and methods for their fabrication. A rolled electroactive polymer device converts between electrical and mechanical energy; and includes |
| 6882086 |
Variable stiffness electroactive polymer systems |
April 19, 2005 |
| The invention relates to systems that provide variable stiffness and/or variable damping using an electroactive polymer transducer. Systems described herein offer several techniques that provide variable and controlled stiffness and/or damping. A transducer may be implemented using o |
| 6876135 |
Master/slave electroactive polymer systems |
April 5, 2005 |
| The present invention relates to improved devices, systems and methods that convert between electrical and mechanical energy. An electroactive polymer transducer converts between electrical and mechanical energy. An active area is a portion of an electroactive polymer transducer. The act |
| 6812624 |
Electroactive polymers |
November 2, 2004 |
| The present invention relates to transducers, their use and fabrication. The transducers convert between mechanical and electrical energy. Some transducers of the present invention include a pre-strained polymer. The pre-strain improves the conversion between electrical and mechanical |
| 6809462 |
Electroactive polymer sensors |
October 26, 2004 |
| The invention provides sensors that comprise a transducer that converts between mechanical energy and electrical energy. The transducer comprises an electroactive polymer in electrical communication with at least two electrodes. When a relatively small voltage difference is applied betwe |
| 6806621 |
Electroactive polymer rotary motors |
October 19, 2004 |
| The present invention relates to mechanical-electrical power conversion systems. The systems comprise one or more electroactive polymers that convert between electrical and mechanical energy. When a voltage is applied to electrodes contacting an electroactive polymer, the polymer def |
| 6781284 |
Electroactive polymer transducers and actuators |
August 24, 2004 |
| The present invention relates to electroactive polymers that are pre-strained to improve conversion from electrical to mechanical energy. When a voltage is applied to electrodes contacting a pre-strained polymer, the polymer deflects. This deflection may be used to do mechanical work. |
| 6768246 |
Biologically powered electroactive polymer generators |
July 27, 2004 |
| Disclosed generators includes one or more transducers that use electroactive polymer films to convert mechanical energy to electrical energy. The generators may include one or more transmission mechanisms that transfer a portion of an unused biological energy source, an unused enviro |
| 6707236 |
Non-contact electroactive polymer electrodes |
March 16, 2004 |
| The invention relates to systems and methods for electrically communicating with an electroactive polymer using one or more electrodes that do not contact the polymer. A non-contact electrode communicates charge to or from a portion of the polymer, typically through a medium. For example |
| 6664718 |
Monolithic electroactive polymers |
December 16, 2003 |
| The present invention relates to polymers, transducers and devices that convert between electrical and mechanical energy. When a voltage is applied to electrodes contacting an electroactive polymer, the polymer deflects. This deflection may be used to do mechanical work. Similarly, w |
| 6628040 |
Electroactive polymer thermal electric generators |
September 30, 2003 |
| This disclosed generators include one or more transducers that use electroactive polymer films to convert thermally generated mechanical energy to electrical energy. The generators may include one or more transmission mechanisms that convert a portion of thermal energy generated from |
| 6586859 |
Electroactive polymer animated devices |
July 1, 2003 |
| The present invention relates to animated devices that include one or more electroactive polymer transducers. When actuated by electrical energy, an electroactive polymer produces mechanical deflection in one or more directions. This deflection may be used to produce motion of a feature |
| 6583533 |
Electroactive polymer electrodes |
June 24, 2003 |
| The present invention relates to electroactive polymers that are pre-strained to improve conversion from electrical to mechanical energy. When a voltage is applied to electrodes contacting a pre-strained polymer, the polymer deflects. This deflection may be used to do mechanical work. |
| 6545384 |
Electroactive polymer devices |
April 8, 2003 |
| The present invention relates to transducers, their use and fabrication. The transducers convert between mechanical and electrical energy. Some transducers of the present invention include a pre-strained polymer. The pre-strain improves the conversion between electrical and mechanical |
| 6543110 |
Electroactive polymer fabrication |
April 8, 2003 |
| Pre-strained electroactive polymers are described that improve conversion from electrical to mechanical energy. When a voltage is applied to electrodes contacting a pre-strained polymer, the polymer deflects. This deflection may be used to do mechanical work. The pre-strain improves the |
| 6376971 |
Electroactive polymer electrodes |
April 23, 2002 |
| The present invention relates to electroactive polymers that are pre-strained to improve conversion from electrical to mechanical energy. When a voltage is applied to electrodes contacting a pre-strained polymer, the polymer deflects. This deflection may be used to do mechanical work. |
| 6343129 |
Elastomeric dielectric polymer film sonic actuator |
January 29, 2002 |
| A sonic actuator including a multi-layer membrane having an elastomeric dielectric polymer layer with a first surface and a second surface, a first compliant electrode layer contacting the first surface of the polymer layer, and a second compliant electrode layer contacting the secon |
| 5176143 |
Tonometer transducer positioning system |
January 5, 1993 |
| A tonometric blood pressure monitoring system is disclosed having a variable extension sensor assembly. The sensor assembly is connected to a central control unit through separable pod elements. Within the pod elements are a master cylinder and drive system for varying the extension |
