Thermoacoustic device

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Thermal response to – or generation of – sound vibration

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C381S426000

Reexamination Certificate

active

08050430

ABSTRACT:
A sound wave generator includes one or more carbon nanotube films. The carbon nanotube film includes a plurality of carbon nanotubes substantially parallel to each other and joined side by side via van der Waals attractive force therebetween. At least part of the sound wave generator is supported by a supporting element. The one or more carbon nanotube films produce sound by means of the thermoacoustic effect.

REFERENCES:
patent: 1528774 (1925-03-01), Kranz
patent: 4334321 (1982-06-01), Edelman
patent: 4503564 (1985-03-01), Edelman et al.
patent: 4641377 (1987-02-01), Rush et al.
patent: 4766607 (1988-08-01), Feldman
patent: 5694477 (1997-12-01), Kole
patent: 6473625 (2002-10-01), Williams et al.
patent: 6803116 (2004-10-01), Ikeda
patent: 6808746 (2004-10-01), Dai et al.
patent: 6921575 (2005-07-01), Horiuchi et al.
patent: 7045108 (2006-05-01), Jiang et al.
patent: 7393428 (2008-07-01), Huang et al.
patent: 7723684 (2010-05-01), Haddon et al.
patent: 7799163 (2010-09-01), Mau et al.
patent: 2001/0005272 (2001-06-01), Buchholz
patent: 2005/0040371 (2005-02-01), Watanabe et al.
patent: 2005/0201575 (2005-09-01), Koshida et al.
patent: 2006/0147081 (2006-07-01), Mango et al.
patent: 2007/0166223 (2007-07-01), Jiang et al.
patent: 2008/0095694 (2008-04-01), Nakayama et al.
patent: 2008/0170982 (2008-07-01), Zhang et al.
patent: 2009/0016951 (2009-01-01), Kawabata et al.
patent: 2009/0145686 (2009-06-01), Watabe et al.
patent: 2787870 (2006-06-01), None
patent: 1821048 (2006-08-01), None
patent: 2003198281 (2003-07-01), None
patent: 2004229250 (2004-08-01), None
patent: 2005189322 (2005-07-01), None
patent: 2005333601 (2005-12-01), None
patent: WO0073204 (2000-12-01), None
patent: WO2007099975 (2007-09-01), None
Arnold, H.D., Crandall I.B.; “The Thermophone as a Precision Source of Sound”; Jul. 1917; The American Physical Society Rev.; vol. 10, pp. 22-38.
Amos, S.W.; “Principles of Transistor Circuits”; 2000; Newnes-Butterworth-Heinemann; 9th ed.;p. 114.
Strutt John William, Rayleigh Baron, The Theory of Sound, 1926, pp. 226-235, vol. 2.
Swift Gregory W., Thermoacoustic Engines and Refrigerators, Physics Today, Jul. 1995, pp. 22-28, vol. 48.
H.D. Arnold, I.B. Crandall, The Thermophone as a Precision Source of Sound, Physical Review, 1917, pp. 22-38, vol. 10.
Frank P. Incropera, David P. Dewitt et al., Fundamentals of Heat and Mass Transfer, 6th ed., 2007, pp. A-5, Wiley:Asia.
Kaili Jiang, Qunqing Li, Shoushan Fan, Spinning continuous carbon nanotube yarns, Nature, Oct. 24, 2002, pp. 801, vol. 419.
Lin Xiao, Zhuo Chen, Chen Feng, Liang Liu et al., Flexible, Stretchable, Transparent Carbon Nanotube Thin Film Loudspeakers, Nano Letters, 2008, pp. 4539-4545, vol. 8, No. 12, US.
Kai Liu, Yinghui Sun, Lei Chen, Chen Feng, Xiaofeng Feng, Kaili Jiang et al., Controlled Growth of Super-Aligned Carbon Nanotube Arrays for Spinning Continuous Unidirectional Sheets with Tunable Physical Properties, Nano Letters, 2008, pp. 700-705, vol. 8, No. 2.
Lina Zhang, Chen Feng, Zhuo Chen, Liang Liu et al., Superaligned Carbon Nanotube Grid for High Resolution Transmission Electron Microscopy of Nanomaterials, Nano Letters, 2008, pp. 2564-2569, vol. 8, No. 8.
Zhuangchun Wu, Zhihong Chen, Xu Du et al.,Transparent, Conductive Carbon Nanotube Films, Science, Aug. 27, 2004, pp. 1273-1276, vol. 305.
P. De Lange, On Thermophones, Proceedings of the Royal Society of London. Series A, Apr. 1, 1915, pp. 239-241, vol. 91, No. 628.
Xiaobo Zhang, Kaili Jiang, Chen Feng, Peng Liu et al., Spinning and Processing Continuous Yarns from 4-Inch Wafer Scale Super-Aligned Carbon Nanotube Arrays, Advanced Materials, 2006, pp. 1505-1510, vol. 18.
Edward C. Wente, The Thermophone, Physical Review, 1922, pp. 333-345,vol. 19.
J.J.Hopfield, Spectra of Hydrogen, Nitrogen and Oxygen in the Extreme Ultraviolet, Physical Review, 1922, pp. 573-588,vol. 20.
http://www.physorg.com
ews123167268.html.
William Henry Preece, On Some Thermal Effects of Electric Currents, Proceedings of the Royal Society of London, 1879-1880, pp. 408-411, vol. 30.
Braun Ferdinand, Notiz uber Thermophonie, Ann. Der Physik, Apr. 1898, pp. 358-360,vol. 65.
Mei Zhang, Shaoli Fang, Anvar A. Zakhidov, Sergey B. Lee et al., Strong, Transparent, Multifunctional, Carbon Nanotube Sheets, Science, Aug. 19, 2005, pp. 1215-1219, vol. 309.
Yang Wei, Kaili Jiang, Xiaofeng Feng, Peng Liu et al., Comparative studies of multiwalled carbon nanotube sheets before and after shrinking, Physical Review B, Jul. 25, 2007, vol. 76, 045423.
W. Yi, L.Lu, Zhang Dianlin et al., Linear Specific Heat of Carbon Nanotubes, Physical Review B, Apr. 1, 1999, vol. 59, No. 14, R9015-9018.
Lee et al., Photosensitization of nonlinear scattering and photoacoustic emission from single-walled carbon nanotubes, Applied Physics Letters, Mar. 13, 2008, 92, 103122.
Alexander Graham Bell, Selenium and the Photophone, Nature, Sep. 23, 1880, pp. 500-503.
Silvanus P. Thompson, The Photophone, Nature, Sep. 23, 1880, vol. XXII, No. 569, pp. 481.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Thermoacoustic device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermoacoustic device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermoacoustic device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4261442

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.