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:
Apr. 14, 2026
Filed:
Feb. 06, 2023
Mikasa Sangyo Co., Ltd., Tokyo, JP;
Kenichi Nagasawa, Saitama, JP;
Masaya Sekiguchi, Saitama, JP;
Yuichi Nakagomi, Saitama, JP;
Yuta Sakai, Saitama, JP;
MIKASA SANGYO CO., LTD., Tokyo, JP;
Abstract
A block compactor equipped with a brake mechanism capable of securely locking rollers with a simple structure and stably maintaining a locked state and an unlocked state even when exposed to vibration. A brake pad is fixed to a lower end portion of a brake shaft and is configured to be rotatable together with the brake shaft between two rollers adjacent in the front and rear. By rotating a brake lever, the brake pad can be switched between an unlocked state in which the brake pad does not contact with the outer circumferential surfaces of the rollers, and the rollers are free to rotate, and a locked state in which the brake pad contacts with the outer circumferential surfaces of the rollers, and the rollers cannot rotate with the friction force.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile