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:
Sep. 12, 2006
Filed:
Feb. 27, 2003
Hiroyuki Yokotachi, Itabashi-ku, JP;
Hiroyuki Yokotachi, Itabashi-ku, JP;
Nabco, Ltd., , JP;
Abstract
A door system has a compartment formed with a first gateway and a second gateway opposed to the first gateway, and a barrier apparatus housed in the compartment. The barrier apparatus includes a swivel panel which swings back and forth between a first position where one surface of the swivel panel faces the first gateway, and a second position where the opposite surface of the swivel panel faces the first gateway. The barrier apparatus further includes a pair of door panels provided at the opposite ends of the swivel panel to move with the swivel panel. The door panels synchronously open the gateways when the swivel panel is at the first position and at the second position. Air sealing is provided between the compartment and the door panels.