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:
Aug. 31, 1976
Filed:
Feb. 28, 1975
Roger I Saunders, Hollis, NH (US);
Sanders Associates, Inc., Nashua, NH (US);
Abstract
An inflation system for sonobuoys and the like is disclosed in which lithium hydride in finely divided form is cast upon the surface of water ingested into a bag carried by the sonobuoy as the sonobuoy descends in the water. A spring loaded pumping system is actuated when the sonobuoy and bag are immersed in the water, with the extension of the spring also causing the ejection of the lithium hydride from a canister within the bag. The casting of the finely divided lithium hydride onto the surface of the water provides for extremely rapid gas generation such that quickly descending sonobuoys may be rapidly returned to the sea surface. Righting of the buoy is accomplished by the suspension of batteries and sonar apparatus beneath the bag through a snorkel so that the snorkel is extended and the bag righted upon immersion. The snorkel tube provides for a predetermined pressure head as well as for sealing of the buoy bag when the buoy is tilted due to wave action. Two different dispenser cap removal systems are described as well as the use of a 'c' spring to maintain the generally ellipsoid configuration of the expanded bag.