Wheel lifting apparatus
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United States of America Patent
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Feb 18, 2014
Grant Date -
Oct 31, 2013
app pub date -
Apr 30, 2013
filing date -
Apr 30, 2012
priority date (Note) -
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Abstract
The invention is an electric powered mechanism for lifting and lowering at the wheels for an electric sweep type seismic vibrator source of the type used in seismic prospecting for hydrocarbons. The source uses an engine and generator combination to create electric power for all systems on the source such as driving a frame of linear electric motors that direct a rod or piston to contact the ground in a recurring fashion along with driving the source from location to location through a survey area. Preferably a foot is arranged on the bottom end of the rod or piston for contact with the ground and by engaging the grid of motors to push down against the ground in a rapid progression, acoustic energy is created and delivered into the ground for geophones to sense and record. The electric powered wheel mechanism may be utilized to bring the foot of the rod or piston in contact with the ground or in closer proximity to the ground or level the source prior to emitting the seismic energy or to adjust weight on the acoustic energy delivery system while seismic energy is being delivered.
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