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. 05, 1978
Filed:
May. 19, 1977
Applicant:
Inventor:
William J Malinowski, Pembroke, MA (US);
Assignee:
Chloride, Incorporated, Tampa, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
250574 ; 340630 ; 356207 ;
Abstract
A particle detector which during periods of high ambient light is responsive to a particle concentration of a predetermined value to provide an output signal and during periods of low ambient light, is responsive to a substantially lesser particle concentration to sound an alarm.