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:
Jun. 25, 2013
Filed:
Jul. 29, 2011
Andre Stenzel, Sugar Land, TX (US);
Youlin HU, The Woodlands, TX (US);
Andre Stenzel, Sugar Land, TX (US);
Youlin Hu, The Woodlands, TX (US);
PGS Geophysical AS, Lysaker, NO;
Abstract
Depth triggers for marine geophysical survey cable retriever systems. At least some of the illustrative embodiments are methods including causing a submerged geophysical survey cable to surface. The cause may include: moving a piston within a cylinder of a housing coupled to the geophysical survey cable, the moving of the piston responsive to pressure exerted on a face of the piston as the geophysical survey cable reaches or exceeds a predetermined depth, wherein the movement of the piston overcomes a force created by interaction between two materials, the force latches the piston in place at depths above the predetermined depth; and responsive to the piston overcoming the force that latches the piston deploying a mechanism that makes the geophysical survey cable more positively buoyant, the deploying responsive to movement of the piston.