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:
Mar. 28, 2000
Filed:
May. 11, 1998
Applicant:
Inventors:
Nandakumar G Aakalu, Suffern, NY (US);
Woodly Maurice, Irvington, NJ (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ; H05K / ;
U.S. Cl.
CPC ...
4174235 ; 417297 ; 417427 ; 361695 ;
Abstract
A protective shutter assembly for a fan of a forced air cooling system includes lightweight shutter members mounted for pivoting motion about vertical axes. When the fan is operative, its shutter members are pivoted in a first direction to expose the fan and allow air to be exhausted therefrom. When a fan is inoperative, its shutter members pivot in a second direction toward the fan and overlap to prevent air from being reversely drawn into the fan.