The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 19, 1982
Filed:
May. 20, 1980
Applicant:
Inventors:
Noel Clavelloux, Paris, FR;
Francois Peynaud, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
7317 / ;
Abstract
A device for measuring sea currents at great depths as a function of the depth. A spherical shaped plunger having negative floatability is dropped from a boat and descends to the bottom of the sea, releases its ballast and rises to the surface where it is recovered. Acoustic responding buoys positioned geographically receive pulses emitted by the plunger and respond. The plunger-buoy distances are determined sequentially and stored in the plunger. After recovery of the plunger by the boat a computer determines the currents at the different depths.