JOHN J OLSTEAD
Electrician in Millis, MA
License number
Massachusetts 2520
Issued Date
Dec 27, 1995
Expiration Date
Jul 31, 2004
Type
Systems Technician
Address
Address
Millis, MA 02054
Personal information
See more information about JOHN J OLSTEAD at radaris.comName
Address
Phone
244 Exchange St, Millis, MA 02054
Professional information
See more information about JOHN J OLSTEAD at trustoria.com
Use Of Visual Building Alarm System To Display Public Information To Building Visitors
Use Of Visual Building Alarm System To Display Public Information To Building Visitors
US Patent:
6208261, Mar 27, 2001
Filed:
May 13, 2000
Appl. No.:
9/569930
Inventors:
John Olstead - Millis MA
International Classification:
G08B7/00
US Classification:
3406916
Abstract:
A public building alarm system for displaying information relating to potential alarm conditions within or about a public building area, employs an alarm condition display screen for informing a fireman, for example, of the nature and location of a possible fire. For the vast majority of the time, in the absence of an alarm condition, display control circuitry causes the alarm display screen to display information of general interest to the public, in high traffic areas of the building frequented by persons visiting the building. This is in contrast with alarm conditions of no interest to the general public. Such information can include advertising, enabling the building owner to collect advertising revenues to help offset the cost of the alarm system. Upon the occurrence of an alarm condition, the alarm condition display is immediately substituted for the information of general interest display. A fireman or building operator can also produce this substitution by means of a prominent "system test" button adjacent the display.