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.

Date of Patent:
Apr. 14, 2026

Filed:

Apr. 20, 2023
Applicant:

Yanmar Holdings Co., Ltd., Osaka, JP;

Inventors:

Kiyoshi Yonekura, Fukuoka, JP;

Masami Miyanishi, Fukuoka, JP;

Yuta Makino, Fukuoka, JP;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F 3/36 (2006.01);
U.S. Cl.
CPC ...
E02F 3/3663 (2013.01);
Abstract

An attachment mounting and demounting apparatus includes: a fixed frame that has a first hook; a movable frame that has a second hook and is rotatably provided to the fixed frame; a first hydraulic cylinder that rotates the movable frame relative to the fixed frame; a back locking member provided to the fixed frame; a second hydraulic cylinder provided to the fixed frame to rotate the back locking member biased to a locked position by a lock spring, to an unlocked position; a front locking member provided to the movable frame and biased to a locked position by a lock spring; and a third hydraulic cylinder provided to the movable frame to rotate the front locking member to an unlocked position.


Find Patent Forward Citations

Yonekura, Kiyoshi. (2026). Construction machine attachment mounting and demounting apparatus and construction machine equipped with same (U.S. Patent No. 12601139). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12601139

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

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