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:
Jul. 21, 2009
Filed:
Mar. 28, 2006
Applicants:
Douglas H. Marman, Ridgefield, WA (US);
Frederick W. Eggers, Oregon City, OR (US);
Inventors:
Douglas H. Marman, Ridgefield, WA (US);
Frederick W. Eggers, Oregon City, OR (US);
Assignee:
GE Security, Inc., Bradenton, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 17/10 (2006.01); G01N 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A smoke detector that includes at least one image-forming reflective surface, at least one light source and at least one light sensor. In operation, at least one light source emits light from a first area thereon and the reflective surface focuses the light onto a second area that includes at least one light sensor, wherein the first area is smaller than the second area.