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US Patent 7356877 Caster

Patent 7356877 was granted and assigned to Samsung on April, 2008 by the United States Patent and Trademark Office.

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Is a
Patent
Patent

Patent attributes

Current Assignee
Samsung
Samsung
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7356877
Date of Patent
April 15, 2008
Patent Application Number
10872487
Date Filed
June 22, 2004
Patent Primary Examiner
‌
Robert J. Sandy
Patent abstract

A caster includes a fixing portion installed on a bottom surface of an object, a wheel portion which is installed to be elevated into a flange portion and has a moving wheel provided on a bottom surface of the wheel portion, and an elevating portion to control the wheel portion to elevate into the flange portion. The wheel portion descends from the fixing portion to move the object and elevates into the fixing portion to fixedly dispose the object in a position. Therefore, a height of the caster is controlled to be high when the heavy object is being moved, and controlled to be low when fixing the object in a position, thus improving the appearance of the object.

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