Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Reexamination Certificate
2008-02-26
2009-06-23
Lobo, Ian J (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
C367S174000, C181S113000, C181S120000, C310S337000
Reexamination Certificate
active
07551518
ABSTRACT:
A marine vibrator that in a particular embodiment includes a substantially elliptically shaped outer shell, a driver having a first and second end, at least one outer spring connected between the first end and the second end of the driver, and at least one inner spring connected between the first end and the second end of the driver. One or more masses are attached to the inner spring. At least one transmission element connects the outer spring and the outer shell. The outer and inner springs and the masses attached to the inner spring are selected to generate a first resonance frequency and a second resonance within the frequency range between 1 Hz and 300 Hz.
REFERENCES:
patent: 4706230 (1987-11-01), Inoue et al.
patent: 4941202 (1990-07-01), Upton
patent: 5329499 (1994-07-01), Molund et al.
patent: 5457752 (1995-10-01), Engdahl et al.
patent: 5546361 (1996-08-01), Boucher et al.
patent: 5757726 (1998-05-01), Tenghamn et al.
patent: 5757728 (1998-05-01), Tenghamn et al.
patent: 5959939 (1999-09-01), Tenghamn et al.
patent: 6041888 (2000-03-01), Tenghamn
patent: 6076629 (2000-06-01), Tenghamn
patent: 6085862 (2000-07-01), Tenghamn
patent: 6711097 (2004-03-01), Engdahl
patent: 6851511 (2005-02-01), Tenghamn
patent: 7167412 (2007-01-01), Tenghamn
R. Tenghamn, “An electrical marine vibrator with a flextensional shell”, Dec. 2006, Exploration Geophysics, Bulletin of the Australian Society of Exploration Geophysicists, pp. 286-291, vol. 37, Issue 4.
Lobo Ian J
PGS Geophysical AS
Thigpen E. Eugene
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