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. 10, 2007
Filed:
May. 08, 2003
Masayuki Kotera, Osaka, JP;
Masayuki Kotera, Osaka, JP;
OS Co., Ltd., Osaka, JP;
Abstract
It is an object of the present invention to provide a self-standing manually operated elevating screen which makes it possible to raise and lower the screen over a long period of time without encountering any trouble such as damage, deformation or the like, and which makes it possible to simplify the construction used for this purpose. The upper-end supporting memberto which one end of the screenis connected and the base memberD to which the other end of the screenis connected are pivot-connected by left and right linking mechanisms. Urging meanswhich are used to urge the lower side armsupward are provided, and slide membersthat are free to slide are fit over either the let and right upper side armsor the left and right lower side arms, or both. These left and right slide membersare connected so that these members are free to rotate in relative terms on a vertical line S that is positioned in the approximate center of the screenin the transverse direction of the screen.