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:
Aug. 08, 2000
Filed:
Mar. 16, 1999
Nobumichi Shigetomi, Tokyo, JP;
Masaki Nakano, Chiba, JP;
Tomoharu Onishi, Ibaraki, JP;
Tokiji Tamaru, Ibaraki, JP;
Shigeyuki Sato, Chiba, JP;
Atsushi Hotta, Tokyo, JP;
Hitachi Building Systems Co., Ltd., Tokyo, JP;
Nanshin Kiko Co., Ltd., Tokyo, JP;
Abstract
In each of oil-retaining sheets, an end edge and side edges of a recess are separated from each other. The side edges are formed into tongue portions covered by first anti-wear meshes which prevent loosing of the side edges, and these tongue portions are maintained in sliding contact with their corresponding side walls of a guide portion of a guide rail. The end edge is covered by a second anti-wear mesh which prevents loosing of the end edge, and the second anti-wear mesh is maintained in sliding contact with an end wall of the guide portion. A gap is also formed to maintain the tongue portions and the second anti-wear mesh out of contact with each other.