Communications – electrical: acoustic wave systems and devices – Signal transducers – Receivers
Reexamination Certificate
2005-07-26
2005-07-26
Lobo, Ian J. (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Signal transducers
Receivers
C367S178000
Reexamination Certificate
active
06922374
ABSTRACT:
A geophone including conductive terminals positioned on opposite sides of the geophone housing. The geophone includes a pair of coils resiliently mounted within the geophone housing and a magnet. A first end plate, a first spring, and a first coil support provide a first end of the electrically conductive path. A second end plate, a second spring, and a second coil support provide a second end of the electrically conductive path. The first and second end of the electrically conductive path are electrically insulated from each and the geophone housing. Providing one or more remaining components with electrically non-conductive surfaces provides electrical insulation.
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Hagedoorn Arend L.
Laroo Hendrik A.
Input / Output Inc.
Lobo Ian J.
Madan Mossman & Sriram P.C.
LandOfFree
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