Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1985-07-26
1987-09-15
Jordan, Charles T.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
367 25, 367911, 181104, 175 40, G01V 100
Patent
active
046944370
ABSTRACT:
Subterranean surveying apparatus includes a support portion, a connector portion, a housing portion, a positioning portion, a monitoring portion and a control portion. The support portion includes a horizontal reference surface and a base section extending downwardly from the reference surface with mechanism for leveling the reference surface. The connector portion includes a torsionally rigid mast assembly suspended from the reference surface and extending downwardly therefrom with mechanism for selectively fixing the position of the mast assembly with respect to the reference surface. The mast assembly includes a plurality of elongated members disposed in an end to end relationship, the elongated members including end sections securable to adjoining ends of other elongated members. The housing portion includes an elongated hollow section, the upper end of which is affixed to the lower end of the mast assembly. At least one opening in the hollow section is intermediate the ends thereof. A signal emitting device is disposed within the hollow section adjacent the opening. The positioning portion includes lifting mechanism mounted on the support portion base section and connected to the housing portion. The monitoring portion includes a signal display located adjacent to the support portion. Indexing mechanism is disposed adjacent to the reference surface and connected to the upper end of the mast assembly for determining the orientation of the signal emitting device. The control portion includes controls for the signal emitting device and a power source for the apparatus.
REFERENCES:
patent: 3364464 (1968-01-01), Dellinger
patent: 3961683 (1976-06-01), Delignieres
patent: 4532545 (1985-07-01), Hanson
Eldred John W.
Jordan Charles T.
Urban Arthur L.
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