Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Reexamination Certificate
2007-10-16
2010-06-29
Faulk, Devona E (Department: 2614)
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
C422S020000, C422S128000, C204S157420, C266S233000, C433S086000, C181S142000, C181S152000
Reexamination Certificate
active
07744729
ABSTRACT:
An acoustic system for applying vibratory energy including a horn connected to an ultrasonic energy source. The horn defines an overall length and wavelength, and at least a leading section thereof is comprised of a ceramic material. The leading section has a length of at least ⅛ the horn wavelength. In one preferred embodiment, an entirety of the horn is a ceramic material, and is mounted to a separate component, such as a waveguide, via an interference fit. Regardless, by utilizing a ceramic material for at least a significant portion of the horn, the ultrasonic system of the present invention facilitates long-term operation in extreme environments such as high temperature and/or corrosive fluid mediums. The present invention is useful for fabrication of metal matrix composite wires.
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Applicant's admitted prior art, p. 1, line 8-p. 3, line 17.
Ohsawa, Yoshiaki et al. Effects of Ultrasonic Vibration on Solidification Structures of Cast Iron. Imono. vol. 67, Issue No. 5, 1995, pp. 325-330.
Applicant's admitted prior art, p. 1, line8-p. 3, line 17.
Ohsawa, Yoshiaki et al. Effects of Ultrasonic Vibration on Solidification Structures of Cast Iron. Imono. vol. 67, Issue No. 5, 1995 pp. 325-330.
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Zhou, G., et al., “The complex-mode vibration of ultrasonic vibration systems”,Ultrasonics, vol. 40, pp. 907-911 (2002).
Amin Kamal E.
Carpenter Michael W.
Gerdes Ronald W.
Nayar Satinder K.
3M Innovative Properties Company
Baker James A.
Faulk Devona E
Pastirik Daniel R.
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