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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 9267253 B1

PDFFull Text
Expired
Date of Patent:
Feb. 23, 2016

Filed:

Mar. 18, 2015

Land-mounted flap gate

Applicant:

Hitachi Zosen Corporation, Osaka-Shi, Osaka, JP;

Inventors:

Kyouichi Nakayasu, Osaka, JP;

Yuuichiro Kimura, Osaka, JP;

Ryouta Yoshiki, Osaka, JP;

Toshiaki Morii, Osaka, JP;

Assignee:

HITACHI ZOSEN CORPORATION, Osaka-Shi, Osaka, JP;

Attorneys:

Yokoi & Co., U.S.A.

Toshiyuki Yokoi

Primary Examiner:

Frederick L Lagman

Int. Cl.
CPC ...
E02B 3/10 (2006.01); E02B 3/16 (2006.01); E02B 7/20 (2006.01); E02B 7/54 (2006.01);
U.S. Cl.
CPC ...
E02B 3/16 (2013.01); E02B 3/102 (2013.01); E02B 7/20 (2013.01); E02B 7/54 (2013.01);
Abstract

A land-mounted flap gate formed by arranging and connecting a plurality of door bodies alongside one another is disclosed. The front side of each of the plurality of door bodies is raised and lowered using the back end side of each door body as a support point. One end of a rope is attached to the back end surface of the door body and the other end of the rope is attached to a counter weight. At least one fixed pulley for guiding the rope is disposed below the back end side of the door body such that the counter weight assists the raising or lowering when starting the raising or lowering and acts as a resistance against the raising or lowering before completing the raising or lowering. The waterproof film that seals a space between neighboring door bodies in a waterproof manner is formed in a substantially trapezoidal shape.

Find Patent Forward Citations

Nakayasu, Kyouichi. (2016). Land-mounted flap gate (U.S. Patent No. 9267253). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9267253

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

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