US Patent 7356877 Caster

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

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Samsung

Patent Jurisdiction

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.