Dr. Yoseph Bar-Cohen Homepage

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NASA NEW TECHNOLOGY REPORTS (NTR)

1. Y. Bar-Cohen and A. K. Mal, "Nondestructive Determination of Elastic Properties of Composite materials Using Leaky Lamb Wave Measurements," New Technology Report (NTR), Item No. 8289, Docket No. 18729, Dec. 16, 1991, NASA Tech. Briefs, Vol. 17, 11 (November 1993), pp. 76-77.

2. Y. Bar-Cohen, R. V. Bugga and A. I. Attia, "Nondestructive Detection and Monitoring of Corrosion," NTR, Docket No. 18730, July 13, 1993, and "Corrosion- Indicating Pigment and Probes," NASA Tech. Briefs, Vol. 17, No. 10 (October 1993), p. 72.

3. Y. Bar-Cohen, "Automated Quality Assurance of Integrally Fastened Levers of Can Openers," NTR, Docket No. 18758, NASA Tech. Briefs, Vol. 17, No. 10 (October 1993), p. 73 and NASA Tech. Briefs, Vol. 18, No. 10 (October 1994), p. 52.

4. Y. Bar-Cohen and A. K. Mal, "A Pulsed Ultrasonic Technique for Determination of the Elastic Constants of Fiber Reinforced Constants," NTR, Item No 8488, Docket No. 18908, Jan. 12, 1993, NASA Tech. Briefs, 18, No. 8, (August 1994), pp. 70-71.

5. Y. Bar-Cohen, T. Chung, N. Marzwell and G. Carman, "C-scan using Portable Laser Ultrasonic and Thermographic Inspection System (PLUTIS)," NTR, Item No. 8846, Docket No. 19260, July 2, 1993 and NASA Tech. Briefs, Vol. 20, No. 2 (February 1996), p. 27

6. Y. Bar-Cohen, "Controlling Mirror Tilt Using a Bimorph Actuator", NTR, Item No 8890, Docket No. 19303, October 7, 1993, and NASA Tech. Briefs, Vol. 19, No. 11, 1995

7. Y. Bar-Cohen, "Triple Cantilever Articulation Device", NTR, Item No 8898, Docket No. 19312, October 29, 1993. NASA Tech. Briefs, Vol. 20, No. 10, 1996, p. 5a, 6a.

8. Y. Bar-Cohen, "Remotely Interrogatable Strain Gage Imbedded in Composite Materials," NTR, Item No 8952, Docket No. 19355, Dec. 10, 1993. "X-ray Moire Technique for Measuring Strains in Composites," NASA Tech. Briefs, Vol. 20, No. 9, 1996, p. 10a.

9. Y. Bar-Cohen, B. Joffe and S.-S. Lih "Pump Using Flexural Traveling Wave Using No Physically Moving Parts", NTR, Item No. 9351, Docket 19737, August 15, 1995. NASA Tech. Briefs, Vol. 21, No. 4, 1997, p. 66-67. U.S. Patent No. 5,961,298, October 5, 1999

10. Y. Bar-Cohen, "Pump Using Pistons And Valve Made Of Electroactive Actuators", NTR, Docket 19792, NASA Tech. Briefs, Vol. 20, No. 10, (1996), p. 94 & 96. U.S. Patent No. 5,630,709, May 20, 1997.

11. Y. Bar-Cohen, S.-S. Lih and W. Grandia, "High Torque Ultrasonic Motor System Using A Series of Connected Individual Motors and a Stack of Piezoelectric Drivers," NTR, Item No. 9447, Docket 19835, Nov. 14, 1995 (Patent application, CIT 2428, Submitted on April 17, 1996), NASA Tech. Briefs, Vol. 20, No. 10, 1996, p. 12b

12. Y. Bar-Cohen, B. Joffe and P. Backes "Multifunction Automated Crawling System (MACS)", NTR, Item No. 9460, Docket 19847, Nov. 29, 1995. NASA Tech. Briefs, Vol. 21, No. 8, August 1997, p. 80. U.S. Patent No. 5,890,553, April 6, 1999, and U.S. Patent No. 6,105,695, August 22, 2000.

13. Y. Bar-Cohen, B. Joffe, J. Simpson and T. Xue, "Electroactive Muscle Actuators (EMA)," NTR, Item No. 9649, Docket 20017, August 22, 1996. Provisional Patent disclosure (Authorized September 10, 1997). Modified on Sept. 15, 1997.

14. Y. Bar-Cohen, T. Xue, M. Shahinpoor and S.-S. Lih., "Electroactive Polymer Gripping End-Effector," NTR, Item No. 9741, Docket 20103, July 15, 1997. U.S. Provisional Patent CIT 2665 (Submitted on July 25, 1997 under reference 06618/185001), NASA Tech Briefs, Vol. 22, No. 10, 1998, p. 78.

15. Y. Bar-Cohen and B. Joffe, "Magnetically Attached Multifunction Maintenance Rover (MAGMER)," NTR, February 6, 1997, Item No. 9854, Docket 20229, August 4, 1997, U.S. Provisional Patent CIT 2680

16. Y. Bar-Cohen, and S. -S. Lih, "Ultrasonic system for Rapid Material Stiffness Constants Determination (RMSCD)," NTR, February 20, 1997, Item No. 9856, Docket 20231, August 4, 1997. U.S. Patent No. 6,092,421, July 25, 2000

17. Y. Bar-Cohen and M. Shahinpoor, "Multifunction Dexterous Boro-Robot (MDBR)," NTR, Item No. 9881, Docket 20268, October 1, 1997, U.S. Provisional Patent CIT 2706, Filed October 15, 1997, NASA Tech Briefs, Vol. 22, No. 8, 1998, pp. 36-38. Patent application was submitted October 12, 1998

18. Y. Bar-Cohen, T. Xue and M. Shahinpoor, "Surface Wiper Actuated by Electroactive Polymers (SWEP)," NTR, Item No. 9970, Docket 20371, January 19, 1998. NASA Tech Briefs, Vol. 23, No. 2, 1999, pp. 7b-8b.

19. Y. Bar-Cohen, T. Xue, B. Lucky, C. Abidin and M. Turner, "Robotic Articulation Using Electroactive Actuators" NTR, Item No. 9990, Docket 20393, April 2, 1998. NASA Tech Briefs, Vol. 23, No. 6, 1999, pp. 12b-13b.

20. Y. Bar-Cohen, "Ultrasonic Detector and Identifier of Landmines (UDIL)," NTR, Item No. 9996, (Docket 20381, April 8, 1998) Docket 20399, submitted December 19, 1997, Class 1 Award, April 21, 1998. NASA Tech Briefs, Vol. 25, No. 10, 2001, pp. 8b.

21. Y. Bar-Cohen, S. G. Kersey, C. S. Daksla and A. Blanosky, "Quasi Real-Time leaky Lamb Wave (QRT-LLW) Test System Using a Multiplexed Setup," NTR, Dec. 2, 1997, Item No. 9997, Docket 20400, March 31, 1998, NASA Tech Briefs, Vol. 23, No. 1, 1999, pp. 63-64, U.S. Patent No. 6,247,367, June 19, 2001.

22. Y. Bar-Cohen, "Active Reading Display for Blind (ARDIB), NTR, February 5, 1998, Item No. 0008b, Docket 20410, April 9, 1998. NASA Tech Briefs, Vol. 25, No. 2, Feb. 2001, pp. 37-38.

23. Y. Bar-Cohen and S. Leary, "Miniature Electro-Active Polymer Rake (MEAR) for Displacement of Particulate or Powdery Obstacles," NTR, Oct. 9, 1998, Item 0210B, Docket No. 20613 Dec. 17, 1998. NASA Tech Briefs, Vol. 25, No. 10, 2001, pp. 6b-8b.

24. Y. Bar-Cohen and J. Kovach, "Early Detection of Ovarian Cancer Using Pulsed Ultrasonically induced Resonant Cavitation (PURC)," NTR, January 4, 1999, Item No. 0220b, Docket 20623, April 27, 1999. Provisional Patent Application #60/149,901 date Aug. 23, 1999. U.S. Patent No. 6,406,429, June 18, 2002.

25. Y. Bar-Cohen, M. Kabo, H. Kwong-Fu, P. Lee, J. Wang and A. Mal, " Transcutaneous Spine Trauma and Disorders Treatment Using Ultrasonically Induced Confined Heat (ULICH) Zone," NTR, January 12, 1999, Item No. 0227b, Docket 20632, April 27, 1999b, U.S. Provisional Patent CIT 2984 on August 23, 1999.

26. Bar-Cohen Y., Mavroidis C., Bouzit M., Pfeiffer C. and Dolgin B., "Remote MEchanical MIrroring using Controlled stiffness and Actuators (MEMICA)," NTR, January 18, 1999, Item No. 0237b, Docket 20642, January 27, 1999. Submitted as Provisional Patent on August 24, 1999, Rutgers U. Docket #99-0056, Attorney’s Docket No. 744-16P. NASA Tech Briefs, Vol. 24, No. 2, Feb. 2000, pp. 7a-7b. Filled for patent on Sept. 11, 2000.

27. Y. Bar-Cohen, "High Precision Multi-DoF Surface Acoustic Wave Motors (USAM)," NTR, May 17, 1999, Item No. 0327b, Docket No. 20735, June 11, 1999. NASA Tech Briefs, Vol. 24, No. 12, 2000, pp. 5b-6b. Provisional Patent CIT 3082 on Sept. 29, 1999, Reference 06618/521001. Resubmitted Sept. 29, 2000. Ref. 06618/521P02.

28. Y. Bar-Cohen, S. Sherrit, B. Dolgin, T. Peterson, D. Pal and J. Kroh, "Ultrasonic/Sonic Driller/Corer (USDC) With Integrated Sensors," NTR, August 30, 1999, Item No. 0448b, Docket No. 20856, November 17, 1999. Provisional Patent, filed on 5/3/2000 Application No. 60/201,650. NASA Tech Briefs, Vol. 25, No. 1, Jan. 2001, pp. 38-39.

29. Y. Bar Cohen, X. Bao, A. Hull, and J. Wright "Structurally Integrated High Precision Multi-DoF Actuators (SIHMA)," NTR, August 20, 1999, Item No. 0451b, Docket No. 20859, November 11, 1999. Approved for Provisional Patent on Dec. 29, 1999, NPO 20859, CIT 3143. NASA Tech Briefs, Vol. 27, No. 2, 2003, p. 56

30. Y. Bar-Cohen, S. Leary and T. Knowles, "Helical electroded composite EAP fiber (HECEF) Actuators Emulating Biological Muscles," NTR, November 12, 1999, Item No. 0505b,Docket No. 20909, November 23, 1999. 31. S. Sherrit, Y. Bar-Cohen, and B. Dolgin, "A System for Monitoring Accidental Immersion in Water (SAIW)," NTR, December 1, 1999, Docket No. 20926, Item No. 0521b, February 1, 2000.

31. S. Sherrit, Y. Bar-Cohen, and B. Dolgin, “A System for Monitoring Accidental Immersion in Water (SAIW),” NTR, December 1, 1999, Docket No. 20926, Item No. 0521b, February 1, 2000.

32. Y. Bar-Cohen, X. Bao and N. Marzwell, "Ultrasonic Paint Loosening and Real-Time Thickness Gauging (UPL-RTG) System for enhancement of Waterjet Paint Stripping," NTR, May 2, 2000. Item No. 0664B, Docket No. 21063, May 8, 2000. Provisional Patent CIT 3258-p filed on Aug. 14, 2000 (Ref. 06618/684P01). NASA Tech Briefs, Vol. 25, No. 5, May 2001, pp. 62-64.

33. Y. Bar-Cohen, "Ultrasonically Induced Plumbing-Free switchable Multi-Fountains and Fog (ULIFOG)," NTR, May 1, 2000, Item No. 0662B, Docket No. 21064, May 8, 2000. NASA Tech Briefs, Vol. 26, No. 9, 2002, pp. 59-60.

34. Y. Bar-Cohen, Virginia Olazabal, and Jose-Maria Sansinena, "Electroactive Polymer Actuator with Selectable Deformation (EAPAS)," NTR, October 10, 2000, Item No. 0767b, Docket No. 21174, Dec. 11, 2000. NASA Tech Briefs Vol. 26, No. 7, July 2002, pp. 31-32. Provisional Patent CIT 3373-P submitted January 17, 2001.

35. Y. Bar-Cohen, "Ultrasonically Rotating Toys (UltraToy) Driven With No Moving Parts," NTR, November 27, 2000, Docket No. 21212, Item No. 0819b, Jan 4, 2001. .

36. B. Dolgin, S. Sherrit, Y. Bar-Cohen and Z Chang, "Acoustic Binocular," NTR, Docket No. 21227, Item No. 0808b, February 1, 2001.

37. Y. Bar-Cohen, S. Sherrit, B. Dolgin, S. Askin, T. M. Peterson, W. Bell, J. Kroh, D. Pal, R. Krahe, and S. Du, "Ultrasonic/Sonic Mechanism of Deep Drilling (USMOD)," NTR, submitted on June 12, 2001, Docket No. 30291, July 17, 2001, U.S. Provisional Patent Application No. 60/341,443 filed on December 20, 2001.

38. B. Dolgin, S. Sherrit, Y. Bar-Cohen, S. Askins, D. Sigel, X. Bao, and Z. Chang, "Ultrasonic/ Sonic Vibrating/Rotating Tool" NTR, submitted on Sept. 5, 2001, Docket No. 30370. NASA Tech Briefs, Vol. 26, No. 9, 2002, pp. 65 39.

39. B. Dolgin, S. Sherrit, Y. Bar-Cohen, R. Rainen, S. Askins and D. Sigel, D. Bickler, J. Carson, S. Dawson, X. Bao, and Z. Chang, and T. Peterson, "Ultrasonic Rock Abrasion Tool (URAT)," NTR submitted on Oct. 12, 2001, Docket No. 30403.

40. Y. Bar-Cohen, Z. Chang, X. Bao, and S.-S. Lih "Piezopump - A Miniature Ring-Shape Peristaltic Pump," NTR, submitted on October 26, 2001, Docket No. 30415. NASA Tech Briefs (in preparation, Feb. 2002).

41. Y. Bar-Cohen, P. Mouroulis, X. Bao and S. Sherrit, "Shape controlled mirrors/antennas (SCoMA) using biologically inspired actuators," NTR submitted on December 6, 2001, Docket No. 30487. NASA Tech Briefs, Vol. 27, No. 5, 2003, pp. 30, 32

42. S. Sherrit, S. A. Askins, M. Gradziol, B. P. Dolgin, Y. Bar-Cohen, X. Bao, and Z. Cheng, "Novel Ultrasonic Horns for power ultrasonics, " NTR, submitted on December 6, 2001, Docket No. 30489. NASA Tech Briefs, Vol. 27, No. 4, 2003, pp. 54-55. Submitted provisional patent July 2, 2002.

43. Y. Bar-Cohen, C. Mavroidis, J. Melli-Huber and A. Fisch, "An Exoskeleton with On-Demand Controlled Resistivity and Operability (ExODeCRO) Using ERF-Based Elements" NTR, submitted on February 10, 2002, Docket No. No. 30558.

44. Y. Bar-Cohen, Z. Chang, M. Salama, X. Bao, S. Sherrit, C.H.M Jenkins and A. Vinogradov, "Controlled gossamer structures deployment and stability using ERF," NTR submitted on March 12, 2002, Docket No. No. 30587, NASA Tech Briefs, Vol. 27, No. 2, 2003, p. 56

45. Y. Bar-Cohen, J. Randolph, C. Ritz, G. Cook and X. Bao, and S. Sherrit, "Sample Preparation, Acquisition, Handling and Delivery (SPAHD) System using the Ultrasonic/Sonic Driller/Corer (USDC) with Interchangeable Bits," NTR submitted on May 1, 2002, Docket No. 30640. NASA Tech Briefs (in preparation, Sept 2002).

46. S. Sherrit, Y. Bar-Cohen, B. Dolgin, X. Bao, and Z. Chang, "Ultrasonic Crusher for Crushing, Milling, and Powdering," NTR submitted on June 21, 2002, Docket No. 30682.

47. Y. Bar-Cohen, S. Sherrit, Y. E. Krasik, J. Felsteiner and X. Bao, "Compact Solid-State Ferroelectric-Based Source (SSFBS) of Charged Particles and Radiation," NTR submitted on June 28, 2002, Docket No. 30694.

48. Iris C. Paustian, Yoseph Bar-Cohen, Joseph L. Lopes, Stewart Sherrit , Zensheu Chang, Donald L. Folds and Xiaoqi Bao, "Sonar Lenses with Controllable Directivity using ERF (SLCoDE)," NTR submitted on November 13, 2002, Docket No. 30884

49. Y. Bar-Cohen and S. Sherrit, "Thermocouple-on-the-bit a real time sensor of the hardness of drilled objects," NTR submitted on February 1, 2003, Docket No. 40132.

50. Y. Bar-Cohen, S. Sherrit, and B. Dolgin "Detection and Mapping Underground Facilities Using a Sonic-Boom Sounder (SBS)," NTR submitted on February 3, 2003, Docket No. 40116.

51. Y. Bar-Cohen, "Tactile Electro-Active Braille Display (TEABDI) for Presentation of Text and Graphics to Blind," NTR submitted on March 15, 2003, Docket No. 40254.

52. X. Bao, Y. Bar-Cohen, and S. Sherrit, "Single-layer electroactive polymer mirror with controllable focus," NTR submitted on March 21, 2003, Docket No. 40275.

53. EH Yang, B.M. Levine, R. Morgan, and Y. Bar-Cohen, "Re-configurable large optical mirror in space," NTR submitted on June 5, 2003, Docket No. 40453.

54. S. Sherrit, Y. Bar-Cohen, X. Bao, Zensheu Chang, D. Blake and C. Bryson, "Ultrasonic/Sonic Rock Powdering Sampler and Delivery Tool," NTR submitted on August 13, 2003, Docket No. 40564.

55. Y. Bar-Cohen, S. Sherrit and J. L. Herz "Ultrasonic/Sonic Jackhammer (USJ)," NTR Docket No. 40771, submitted on October 31, 2003. Provisional Patent was filed on 1/9/2004, CIT File #4025-P.

56. Y. Bar-Cohen, and S. Sherrit, "Self-Mountable and Extractable Ultrasonic/Sonic Anchor (U/S-Anchor)," NTR Docket No. 40827, submitted on December 9, 2003

57. Y. Bar-Cohen, "Biomimetic Reconfigurable Robotic Structures (BIRERS) with Mobility, Controlled Rigidity and Haptic Capability," NTR Docket No. 40947, submitted on February 21, 2004.

58. Y. Bar-Cohen, and S. Sherrit, "Octopus-shape robotic arm (OSRAM) having multiple degrees of freedom and tentacles with end-effector tools," NTR Docket No. 40948, submitted on February 24, 2004.

59. 59. S. Sherrit, Y. Bar-Cohen, Z. Chang and X. Bao, "Dog Bone Piezoelectric Actuation Horns," NTR Docket No. 40949, submitted on February 25, 2004.

60. Y. Bar-Cohen, T. P. Rivellini, J. Wincentsen, and R. Gershman "Simultaneous Separation, Seaming and Sealing using Brazing (S3B) for Sample Containerization and Planetary Protection," NTR Docket No. 41024, submitted on April 6, 2004.

61. 61. S. Sherrit, Y. Bar-Cohen, and X. Bao, "Efficient Electromechanical Network Model for Wireless Acoustic- Electric Feed-throughs (WAEF)," NTR Docket No. 41157, submitted on June 21, 2004.

62. Y. Bar-Cohen, "Borehole wall stabilization by lining recoiling rigidizable thin-foil tiles," NTR Docket No. 41436, submitted on November 3, 2004.

63. X. Bao, Y. Bar-Cohen, Z. Chang, S. Sherrit and R. Stark, "Ultrasonic/Sonic Impacting Penetrator (USIP)," NTR Docket No. 41666, submitted on December 22, 2004.

64. S. Sherrit, M. Badescu, Y. Bar-Cohen, Z. Chang, X. Bao, "Portable Rapid and Quiet Drill (PRAQD)," NTR Docket No. 42131, submitted on April 8, 2005. Patent disclosure submitted on Feb. 2006, $350 award on March 16, 2006.

65. J. Aldrich, S. Sherrit, M. Badescu Y. Bar-Cohen, X. Bao, and Z. Chang, "Controller using extremum-seeking to drive heavily perturbed electroactive actuators at resonance" NTR Docket No. 43519, submitted on February 9, 2006.

66. S. Sherrit, Y. Bar-Cohen, M. Badescu, X. Bao, Z Chang, C. Jones, J. Aldrich, "Compact Non-Pneumatic Powder Sampler (NPPS)," NTR Docket No. 43614, submitted on February 23, 2006.

67. S. Sherrit, X. Bao and Y. Bar-Cohen, "Acoustic Transducer performance Enhancement using Impedance Matching Layers consisting of Solid Micro Horn Array (SMIHA)," NTR Docket No. 43907, submitted on May 4, 2006.

68. S. Sherrit, M. Badescu, Y. Bar-Cohen, J. Barengoltz, and V. Heckman, "Piezoelectric Bolt/Pin Shearing Device," NTR Docket No. 43977, submitted on May 15, 2006.

69. M. Badescu, S. Sherrit, Y. Bar-Cohen, X. Bao, and S. Kassab, "Ultrasonic/Sonic Rotary-Hammer Drill (USRoHD)," NTR Docket No. 44765, submitted on December 19, 2006.

70. S. Sherrit, B. Doty, X. Bao, Y. Bar-Cohen, M. Badescu, and Z. Chang, “Highly efficient wireless transmission of high power and signals through solid walls using Acoustic-Electric feed-through mechanism,” NTR Docket No. 44928, submitted on February 13, 2007. A provisional patent was submitted on April 23, 2007.

71. Y. Bar-Cohen, M. Badescu, T. Iskenderian, S. Sherrit, X. Bao, and R. Lindemann, “Penetrator with foldable bit for packing in a compact configuration and unfolding for deep drilling,” NTR Docket No. 45289, submitted on July 16, 2007.

72. Y. Bar-Cohen, A. K. Olorunsola, M. Badescu, X. Bao, and S. Sherrit, “Simultaneous sealing and external surface sterilization of containers with samples,” NTR Docket No. 45610, submitted on September 25, 2007

73. S. Sherrit, M. Badescu, and Y. Bar-Cohen, “Miniature Low-Mass Drill Actuated by Flextensional Piezo-Stack (DAFPiS)” NTR Docket No. 45857, Submitted on January 8, 2008.

74. Y. Bar-Cohen, M. Badescu, and S. Sherrit, “Rapid Rotary-Percussive Auto-Gopher for deep subsurface penetration and sampling,” NTR Docket No. 45949, Submitted on February 20, 2008.

75. M. Badescu, Y. Bar-Cohen, P. Backes, S. Sherrit, X. Bao, and J. S. Scott, “Sample sealing system and method of sealing for sample return missions,” NTR Docket No. 46089, Submitted on April 1, 2008.

76. Y. Bar-Cohen, X. Bao, S. Sherrit, M, Badescu, S.-S. Lih, “High speed transport of fluid drops and solid particles via surface acoustic waves (SAW) using no physically moving parts,” NTR Docket No. 46252, Submitted on May 28, 2008.

77. S. Sherrit, J. Scott, Y. Bar-Cohen, M. Badescu and X. Bao, “Low frequency vibrations of asymmetric grooved surfaces for particles transport, size sorting and sampling,” NTR Docket No. 46334, Submitted on June 26, 2008.

78. J. Aldrich, Y. Bar-Cohen, S. Sherrit, M. Badescu, X. Bao, and J. Scott, “Percussive Augmenter of Rotary Drills (PARoD) for Operating as a Rotary-Hammer Drill,” NTR Docket No. 46550, Submitted on September 11, 2008.

79. S. Sherrit, A. Trebi-Ollennu, R. Bonitz and Y. Bar-Cohen, ”Miniature Piezoelectric Macro Mass Balance,” NTR Docket No. 47161, Submitted on June 15, 2009.

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