Alfred E. Yarbrough - Fort Worth TX Jerry O. Ball - Fort Worth TX
Assignee:
Burnett Oil Co., Inc. - Fort Worth TX
International Classification:
G08B 1320
US Classification:
340544
Abstract:
An intrusion alarm system, for an enclosed space responsive to first frequencies in the one to two Hertz range for detecting opening of doors or windows; and responsive to second frequencies in the third to four Khz range for detecting breaking glass. A mode selector renders the alarm responsive to a selected one of either the first or the second frequencies, or the concomitant detection of both first and second frequencies.
Alfred E. Yarbrough - Granbury TX Jerry O. Ball - Fort Worth TX
International Classification:
G08B 1320
US Classification:
340544
Abstract:
An intrusion alarm system, for an enclosed space responsive to frequencies in the one to two Hertz range for detecting opening of doors or windows; and responsive to frequencies in the three to four Khz range for detecting breaking glass. A detected frequency in the one to two Hertz range increases the sensitivity required for detecting breaking glass.
Name / Title
Company / Classification
Phones & Addresses
Jerry Ball Manager
The Burnett Foundation Corp Electrical Work
801 Cherry St UNIT 16, Fort Worth, TX 76116 8178773344
Jerry Ball Manager
Executive Protective Systems Alarm Division Other Communications Equip Mfg · Electrical Work
3715 Bernie Anderson Ave, Fort Worth, TX 76116 8174295222, 8177321678, 8177638160