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:
Dec. 27, 2016
Filed:
Mar. 06, 2014
Exelis Inc., McLean, VA (US);
Paul C. Stout, Panama City, FL (US);
Exelis, Inc., McLean, VA (US);
Abstract
An apparatus is provided for underwater operation comprising a pressure regulator configured to reduce a pressure of a gas received from a gas source at a first pressure to a second, lower pressure. A multiport differential pressure regulator is provided to receive the gas at the second pressure at a first port and to provide the gas to a second port at a differential pressure relative to an ambient pressure that varies based on a depth of the apparatus, where the differential pressure is set to a pressure that is at least 0.1 PSI below ambient pressure. A check valve vent is coupled to the second port of the multiport differential pressure regulator to relieve pressure at the second port accumulated by the apparatus during operation at a higher pressure depth when the apparatus rises from the higher pressure depth to a lower pressure depth.