Acoustics – Geophysical or subsurface exploration – Seismic wave generation
Reexamination Certificate
2008-04-29
2008-04-29
Donovan, Lincoln (Department: 2837)
Acoustics
Geophysical or subsurface exploration
Seismic wave generation
C181S108000, C181S113000, C181S114000, C367S189000, C367S190000
Reexamination Certificate
active
07364008
ABSTRACT:
The invention relates to an apparatus and method for imparting a precise amount of impulse energy to be delivered to the ground. The apparatus includes an anvil for operative deployment against the earth a hammer operatively connected to the anvil for striking the anvil; and a control system operatively connected to the hammer for controlling the impulse energy of the hammer striking the anvil. The control system includes a linear feedback system for measuring the linear position of the hammer with respect to the anvil during a force stroke and a processor for receiving linear position data from the linear feedback system for controlling the relative speed of the hammer with respect to the anvil during a force stroke through an actuation system.
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969912 Alberta Ltd.
Birch & Stewart Kolasch & Birch, LLP
Donovan Lincoln
Luks Jeremy
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