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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 11034561 B1

PDFFull Text
Date of Patent:
Jun. 15, 2021

Filed:

Dec. 28, 2017

Chain block

Applicant:

Kito Corporation, Yamanashi, JP;

Inventor:

Takayuki Kasai, Yamanashi, JP;

Assignee:

KITO CORPORATION, Yamanashi, JP;

Attorney:

Cantor Colburn LLP

Primary Examiner:

Sang K Kim

Assistant Examiner:

Nathaniel L Adams

Int. Cl.
CPC ...
B66D 3/16 (2006.01); F16D 27/01 (2006.01); B66D 1/22 (2006.01); F16D 11/14 (2006.01); F16D 27/14 (2006.01); F16D 43/202 (2006.01); F16H 55/17 (2006.01);
U.S. Cl.
CPC ...
B66D 3/16 (2013.01); F16D 27/01 (2013.01); B66D 1/225 (2013.01); F16D 11/14 (2013.01); F16D 27/14 (2013.01); F16D 43/2024 (2013.01); F16H 2055/176 (2013.01);
Abstract

A chain block comprises: a first rotary body in which a first tooth part f is arranged; a second rotary body comprising a second tooth part which opposes to a first tooth part with magnetic attraction force and releasing the magnetic coupling state by sliding toward thrust direction; a clutch pin integrally provided with the second rotary body; a clutch receiving member comprising a plurality of recessed pockets to which the clutch pin enters according to a slide of the second rotary body; wherein the plurality of pockets comprise; a hoisting-side pocket in which a magnetic member is arranged; a lowering-side pocket in which a magnetic member is arranged; and an intermediate pocket which exists between the hoisting-side pocket and the lowering-side pocket and which the clutch pin enters in a state of not being magnetically attracted.

Find Patent Forward Citations

Kasai, Takayuki. (2021). Chain block (U.S. Patent No. 11034561). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11034561

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

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