Security alarm system

• US 5,438,315 A
• Filed: 09/23/1994
• Issued: 08/01/1995
• Est. Priority Date: 01/25/1993
• Status: Expired due to Term

• Current Assignee: Ronald D. Nix
• Original Assignee: Ronald D. Nix
• Inventors: Nix, Ronald D.
• Primary Examiner(s): Hofsass, Jeffery A.
• Assistant Examiner(s): Wu, Daniel J.
• Application Number:
  US08/311,706
• Time in Patent Office: 312 Days
• Field of Search: 340/427, 340/432, 340/539, 340/574, 340/573, 340/693, 455/348, 455/349, 200/43.01, 200/330, 200/331, 200/333, 200/DIG. 2
• US Class Current: 340/539.11
• CPC Class Codes: G08B 21/0297 Robbery alarms, e.g. hold-up alarms, bag snatching alarms
• CPC Class Codes: Y10S 200/02 Body attached switches

Abstract

A security alarm system having a transmitting unit adapted to be worn as a bracelet, and a remote alarm unit. The transmitting unit is preferably in the form of a bracelet having a cavity enclosing an rf transmitter operable to transmit encoded signals to the remote unit for actuating an audible alarm.

Claims

1. A security alarm system comprising, in combination:

a bangle-type bracelet divided into first and second segments each having respective proximate end portions and means pivotally interconnecting the proximate end portions for permitting opening and closing of the bracelet segments, the bracelet segments having respective distal end portions, the bracelet further including security latching means having a threaded member movably coupled to the first bracelet segment, and means within the distal end portion of the second bracelet segment for receiving the threaded member along an axis extending transversely of the second bracelet segment;

the latching means including a fastening member having a threaded shaft and first receptacle means mounted in the distal end portion of one of the bracelet segments for threadingly receiving the fastening member shaft, the latching means further comprising second receptacle means mounted in the distal end portion of the other bracelet segment, for receiving the threaded shaft of the fastening member;

a transmitting assembly enclosed within one of said segments, the transmitting assembly having a power supply, a transmitter, and switching means electrically connected between the power supply and the transmitter, the switching means having an actuating member spaced from the latching means;

the first bracelet segment being intersected by an access opening and the switch actuating member including a push button mounted within the first bracelet segment adjacent the switching means, the push button being recessed inwardly relative to the outer surface of the first bracelet segment and being aligned with the access opening;

a resilient mounting member disposed between the switch actuating member and the first bracelet segment for yieldably maintaining the push button flush against the first bracelet segment in an open circuit switch position so that it may be depressed through the access opening to a closed circuit switch position, thus making the push button inconspicuous and further enhancing the illusion that the bracelet is merely an ornamental item rather than a security device; and

,

an alarm unit having an alarm device and a receiving system, responsive to signals emitted by the transmitting system for actuating the alarm device, and power supply means for powering the receiving system and the alarm device.