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:
Dec. 17, 2013

Filed:

Jun. 11, 2010
Applicants:

Young Hoon Lee, Seongnam-si, KR;

Sung Hak Kim, Seoul, KR;

Inventors:

Young Hoon Lee, Seongnam-si, KR;

Sung Hak Kim, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61B 12/02 (2006.01); B61B 3/00 (2006.01); E01B 25/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

An intersection navigation system for a hoist to prevent a hoist unit of the hoist from falling when the hoist unit passes an intersection may include a hoist unit including an auxiliary mover and a railway on which the hoist unit travels. The railway may include an intersection having auxiliary rails on which the auxiliary mover moves. Furthermore, the auxiliary mover may be configured to prevent the hoist unit from falling when the hoist unit passes through the intersection.


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