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. 06, 1993
Filed:
Mar. 13, 1992
Kenichi Kubota, Sabae, JP;
Nichimen Corporation, , JP;
Abstract
Air-tightening devices for folding doors and windows which are consisted of a plurality of panels connected by joint members to swivel about shafts received by bearing flanges of the joint members so that they are stretched or folded. The shafts and their bearing flanges are located outside of the plane of panels. Filler wedges air-tightly embracing said shafts and bearing flanges have smoothly resilient extensions which are coplanar with said plane and are able to make air-tight abutment with sealing liners fitted to lintel rails, independently from another sealing liners provided to lateral sides of the joint members and/or of the panels and being able to make air-tight abutment with the other sides when the panels are stretched.