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. 29, 1997
Filed:
May. 16, 1996
Applicant:
Inventors:
Hyo Shim, Cerritos, CA (US);
Sham S Hariram, Laguna Hills, CA (US);
Wai-Pak Wong, Cerritos, CA (US);
Ronald Blumke, Covina, CA (US);
Stanley C Yu, Pico Rivera, CA (US);
Assignee:
McDonnell Douglas Corporation, St. Louis, MO (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340628 ; 340606 ; 340627 ; 340632 ; 340514 ; 340516 ;
Abstract
A smoke detector unit with a fan that creates an airstream which flows through a smoke detector. Both the fan and the smoke detector are located within a housing that is mounted to the fuselage of an airplane. The smoke detector generates an output signal that is provided to an indicator when a threshold level of smoke is detected. The output signal is typically latched by a relay that is also located within the housing.