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:
Apr. 17, 2012

Filed:

Apr. 24, 2009
Applicants:

Teruyuki Abe, Tokyo, JP;

Kazuharu Seki, Tokyo, JP;

Inventors:

Teruyuki Abe, Tokyo, JP;

Kazuharu Seki, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/58 (2006.01);
U.S. Cl.
CPC ...
Abstract

A portable screen assembly is small, light and easy to handle and enables easy extension and contraction of a column stretching a screen. The column has at least a first cylindrical body, a second cylindrical body, and a third cylindrical body, wherein the first cylindrical body slides within the second cylindrical body and the second cylindrical body slides within the third cylindrical body. The column also includes a first lock portion locking slide of the first cylindrical body, a second lock portion locking slide of the second cylindrical body, a lock release lever provided at an upper end portion of the first cylindrical body, and a release bar having an upper end portion pivotally connected to the lock release lever so as to be movable vertically within the first cylindrical body.


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