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. 11, 2001
Filed:
Sep. 07, 1999
Applicant:
Inventor:
William Souza, Palmdale, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08G 1/01 ;
U.S. Cl.
CPC ...
G08G 1/01 ;
Abstract
The portable roadway perimeter alarm has an impact sensor which may be a shock or pressure sensor that is connected to a transmitter. The impact sensor and transmitter unit is located around the perimeter of a roadway work area to detect vehicles penetrating the perimeter into the designated work area which vehicles may represent a hazard to work crews. The vehicle penetration event is transmitted to a warning receiver and alarm unit which may be placed in a pocket of a worker's vest or may be mounted on a work vehicle to sound an area alarm. The impact sensor and transmitter units are durable and operate in adverse environmental conditions.