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:
May. 10, 2022
Filed:
Mar. 09, 2020
Woods Hole Oceanographic Institution, Woods HOle, MA (US);
Jeffrey Kaeli, Woods Hole, MA (US);
Robin Littlefield, Falmouth, MA (US);
WOODS HOLE OCEANOGRAPHIC INSTITUTION, Woods Hole, MA (US);
Abstract
A passive ballast device, system and method of using same, configured for use with a submersible vehicle in a liquid environment, including a chamber having at least one rigid wall to define at least a portion of a chamber volume, and a passively movable compensator having at least first and second surfaces, the first surface configured to be exposed to the liquid environment, the second surface excluded from the liquid environment, and forming, together with the at least one wall of the chamber, a fluid-tight seal to establish the remainder of the chamber volume, to exclude the liquid environment from the chamber volume and configured to adjust the chamber volume to at least a first chamber volume and a second chamber volume. The chamber volume is configured to establish at least a first buoyancy and second buoyancy, the compensator is configured to respond to a change in environmental pressure within the liquid environment, and the compensator is passively moved by the change in environmental pressure to change the first chamber volume to the second chamber volume, thereby changing from the first buoyancy to the second buoyancy.