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. 11, 1995
Filed:
Dec. 14, 1992
Applicant:
Inventors:
David L Trozzo, Pittsburgh, PA (US);
Daniel A Nadzam, Pittsburgh, PA (US);
Frank T Paolo, Jr, Leechburg, PA (US);
Assignee:
Geraghty & Miller, Inc., Denver, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340632 ; 340693 ; 73 3102 ;
Abstract
An apparatus placed at the 'fenceline' (perimeter) of a site, to detect the possible existence of contaminants within the air and transmit an audio signal to a remote location indicating an irregularity in the air quality. Conventional audio transmitters such as a walkie-talkie may be used to detect an audio alarm signal from the contamination detection device and be received by a receiver, such as another walkie-talkie at a remote location. The monitoring system may be housed in a portable enclosure to protect the equipment from weather, vandalism or theft.