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. 24, 1996
Filed:
Oct. 12, 1995
Hirofumi Fukuda, Kawasaki, JP;
Kazuo Hatori, Kawasaki, JP;
Kazumi Yamada, Kawasaki, JP;
Toshiaki Nogiri, Fukuoka, JP;
Kozo Mori, Kawasaki, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
A box-shaped rack forming an electronic device housing has a plurality of guide grooves for guiding upper and lower edges of electronic circuit packages. A plurality of dummy surface plates are pivotably mounted on a front opening portion of the rack and arranged side by side. Each dummy surface plate is biased by a spring, so that when the electronic circuit package is not inserted in the rack, the dummy surface plate is kept in abutment against the inner surface of the rack to shield a part of the front opening portion of the rack. When the electronic circuit package is inserted into the rack, the dummy surface plate is pushed by the electronic circuit package to pivot inward of the rack, and is finally replaced in position by the package surface plate mounted on the electronic circuit package. When the electronic circuit package is removed from the rack, the dummy surface plate is reversely pivoted to restore an original position and again shield the part of the front opening portion of the rack. Accordingly, even when the electronic circuit package is inserted or exchanged during the operation of the electronic device, the occurrence of electromagnetic interference and the reduction in cooling efficiency can be prevented to thereby improve the efficiency of working such as exchanging of the electronic circuit package.