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:
Oct. 05, 1999
Filed:
Sep. 30, 1997
Takashi Koshiyouji, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
Arranged in each of spring storing sections on either side of a window section are a retaining spring bearing situated adjacent to the window section and a fixed spring bearing situated at a distance from the window section. A shutter has a pair of movable spring bearings that are situated individually in alignment with the retaining spring bearings when the shutter is in its closed position. A fixed end of each of shutter springs is held by means of the fixed spring bearing. A movable end of each shutter spring engages its corresponding retaining spring bearing and the movable spring bearing in alignment therewith when the shutter is in the closed position, is pressed toward the fixed end and separates from the retaining spring bearing when the shutter moves from the closed position toward one of open positions, and separates from the movable spring bearing and is held by the retaining spring bearing when the shutter moves from the closed position toward the other open position.