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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 12600437 B1

PDFFull Text
Date of Patent:
Apr. 14, 2026

Filed:

Mar. 03, 2022

Weight release device

Applicants:

Japan Agency for Marine-earth Science and Technology, Yokosuka, JP;

Okamoto Glass Co., Ltd., Kashiwa, JP;

Inventors:

Tetsuya Miwa, Yokosuka, JP;

Kazumasa Ikeda, Kashiwa, JP;

Takahiro Kubota, Kashiwa, JP;

Atsushi Arai, Kashiwa, JP;

Yasuyuki Murakami, Tsurugashima, JP;

Assignees:

JAPAN AGENCY FOR MARINE-EARTH SCIENCE AND TECHNOLOGY, Yokosuka, JP;

Okamoto Glass Co., Ltd., Kashiwa, JP;

Attorneys:

Yokoi & Co., U.S.A.

Toshiyuki Yokoi

Primary Examiner:

S Joseph Morano

Assistant Examiner:

Eric Anthony Starck

Int. Cl.
CPC ...
B63B 22/06 (2006.01); B26F 3/08 (2006.01); B63B 22/24 (2006.01); G01V 1/18 (2006.01); H05B 3/06 (2006.01); B63G 8/00 (2006.01);
U.S. Cl.
CPC ...
B63B 22/06 (2013.01); B26F 3/08 (2013.01); B63B 22/24 (2013.01); B63B 2209/00 (2013.01); B63B 2211/02 (2013.01); B63G 8/001 (2013.01); G01V 1/18 (2013.01); H05B 3/06 (2013.01);
Abstract

A weight release device capable of being operated in deep sea without accompanying a mechanical operation. The weight release device includes a housing fixed to the underwater observation device; a thread made of thermoplastic resin; electric heater portions; a weight support plate; a locking member of the thread made of the thermoplastic resin; and a ring for hanging the weight. The thread made of the thermoplastic resin is arranged from a start point housed in the housing, arranged to pass through the first electric heater portion, locked to the locking member of the thread made of the thermoplastic resin, arranged to pass through the second electric heater portion housed in the housing, and returned to an end point housed in the housing. The weight is released only by conducting an electricity through the electric heater portion to release the weight for floating the underwater observation device.

Find Patent Forward Citations

Miwa, Tetsuya. (2026). Weight release device (U.S. Patent No. 12600437). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12600437

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

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