Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2005-04-05
2005-04-05
Dougherty, Thomas M. (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S317000, C310S800000
Reexamination Certificate
active
06876135
ABSTRACT:
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 active area comprises a portion of an electroactive polymer and at least two electrodes that provide or receive electrical energy to or from the portion. The present invention relates to transducers and devices comprising multiple active areas that are in electrically communication. More specifically, the present invention relates to master/slave arrangements for multiple active areas disposed on one or more electroactive polymers. In a master/slave arrangement, a first active area deflects (a ‘master’), and a second active area reacts (a ‘slave’). Communication electronics in electrical communication with electrodes for the first active area and in electrical communication with electrodes for the second active area transfer electrical energy between the two active areas.
REFERENCES:
patent: 4190336 (1980-02-01), Frank et al.
patent: 4400634 (1983-08-01), Micheron
patent: 4843275 (1989-06-01), Radice
patent: 4849668 (1989-07-01), Crawley et al.
patent: 4885783 (1989-12-01), Whitehead et al.
patent: 5918502 (1999-07-01), Bishop
patent: 5977685 (1999-11-01), Kurita et al.
patent: 6048622 (2000-04-01), Hagood, IV et al.
patent: 6060811 (2000-05-01), Fox et al.
patent: 6486589 (2002-11-01), Dujari et al.
patent: 6528928 (2003-03-01), Burns et al.
patent: 6700314 (2004-03-01), Cuhat et al.
patent: 0 522 882 (1993-01-01), None
Ajluni, Cheryl, “Pressure Sensors Strive to Stay on Top, New Silicon Micromachining Techniques and Designs Promise Higher Performance”,Electronic Design—Advanced Technology Series, Oct. 3, 1994, pp. 67-74.
Ashley, S., “Smart Skis and Other Adaptive Structures”,Mechanical Engineering, Nov. 1995, pp. 77-81.
Bar-Cohen, Yoseph, JPL,WorldWide ElectroActive Polymers, EAP(Artificial Muscles)Newsletter, vol. 1, No. 1, Jun. 1999.
Cheng, Z.-Y., T.-B. Xu, V. Bharti, S. Wang, and Q. M. Zhang, “Transverse Strain Responses In The Electrostrictive Poly(Vinylidene Fluoride-Trifluorethylene) Copolymer,”Appl. Phys. Lett. vol. 74, No. 13, pp. 1901-1903, Mar. 29, 1999.
Kornbluh, R., Pelrine, R., Eckerie, J., Joseph, J., “Electrostrictive Polymer Artificial Muscle Actuators”, IEEE International Conference on Robotics and Automation, Leuven, Belgium, 1998.
Ktech's PVDF Sensors, http://www.ktech.com/pvdf.htm, Jun. 6, 2001, pp. 1-5.
Pei et al., “Improved Electroactive Polymers”, U.S. Appl. No. 09/619,847, filed Jul. 20, 2000, 70 pages.
Pelrine, R., R. Kornbluh, and Q. Pei. “Electroactive Polymer Transducers And Actuators”, U.S. Appl. No. 09/620,025, filed Jul. 20, 2001, 58 pages.
Pelrine, R. and Kornbluh, “Electroactive Polymer Devices”, U.S. Appl. No. 09/619,846, filed Jul. 20, 2000, 67 pages.
Pelrine et al., “Electroactive Polymer Generators”, U.S. Appl. No. 09/619,848, filed Jul. 20, 2000, 69 pages.
Pelrine, R., R. Kornbluh, and J. Joseph, FY 1998Final Report on Artifical Muscle for Small Robots, ITAD-3482-FR-99-36, SRI International, Menlo Park, California, 1999.
Pelrine, R., R. Kornbluh, Q. Pei, and J. Joseph, “High Speed Electrically Actuated Elastomers with Over 100% Strain,”Science, vol. 287, No. 5454, pp. 1-21, 2000.
Pelrine, R., R. Kornbluh, and G. Kofod, “High Strain Actuator Materials Based on Dielectric Elastomers,” submitted toAdvanced Materials(May 2000).
Pelrine, R., Roy Kornbluh, Jose Joseph, Qibing Pei, Seiki Chiba “Recent Progress in Artificial Muscle Micro Actuators,” SRI International, Tokyo, 1999 MITI/NEEDOIMNIC, 1999.
Treloar, L.R.G., “Mechanics of Rubber Elasticity,”J Polymer Science, Polymer Symposium, No. 48, pp. 107-123, 1974.
Uchino, K. 1986. “Electrostrictive Actuators: Materials and Applications,”Ceramic Bulletin, 65(4), pp. 647-652, 1986.
Winters, J., “Muscle as an Actuator for Intelligent Robots”, Robotics Research: Trans. Robotics International of SME, Scottsdale, AZ (Aug. 18-21, 1986).
Zhenyi, M., J.I, Scheinbeim, J.W. Lee, and B.A. Newman. 1994. “High Field Electrostrictive Response of Polymers,”Journal of Polymer Sciences, Part B—Polymer Physics, vol. 32, pp. 2721-2731, 1994.
Pelrine et al., “Monolithic Electroactive Polymers”, U.S. Appl. No. 09/779,203, filed Feb. 7, 2001, 47 pages.
Kornbluh, et al., “Electroactive Polymer Sensors”, U.S. Appl. No. 10/007,705, filed Dec. 6, 2001, 70 pages.
Pelrine et al., “Biologically Powered Electroactive Polymer Generators”, U.S. Appl. No. 09/792,877, filed Feb. 23, 2001, 93 pages.
Roy D. Kornbluh and Ronald E. Pelrine, “Variable Stiffness Electroactive Polymer Systems”, U.S. Appl. No. 10/053,511, filed Jan. 16, 2002, 64 pages.
John Kymissis et al., “Parasitic Power Harvesting in Shoes”, Physics and Media Group, MIT Media Laboratory E15-410, Cambridge MA, Oct. 19, 1998, pp. 132-139.
Kornbluh Roy D.
Pelrine Ronald E.
Beyer Weaver & Thomas LLP
Dougherty Thomas M.
SRI - International
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