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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.:

US 4493664 B1

PDFFull Text
Date of Patent:
Jan. 15, 1985

Filed:

May. 03, 1982

Sonobuoy float inflation and depth selection initiators

Applicant:
Inventor:

John R Dale, Pennsburg, PA (US);

Assignee:

The United States of America as represented by the Secretary of the Navy, Washington, DC (US);

Attorneys:

Beers; Robert F.

Hansen; Henry

Primary Examiner:

Trygve M Blix

Assistant Examiner:

Stephen P Avila

Int. Cl.
CPC ...
B63B / ;
U.S. Cl.
CPC ...
441-7 ; 441 26 ; 441 30 ; 441 33 ; 222-5 ; 367-4 ;
Abstract

A shape-memory alloy initially configured to have engaging potential for a ance, guillotine or pin connected thereto is wrapped in a heating element powered by current from a water activated battery. When the alloy reaches a specific temperature it silently reverts to a predetermined shape. The reversion force is used to displace a lance to pierce a gas cylinder seal to allow inflation of a float and to cut a retaining loop or withdraw a pin to payout a preset length of hydrophone suspension cable.

Find Patent Forward Citations

Dale, John. (1985). Sonobuoy float inflation and depth selection initiators (U.S. Patent No. 4493664). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4493664

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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