Personal security device

• US 4,837,559 A
• Filed: 12/10/1987
• Issued: 06/06/1989
• Est. Priority Date: 12/10/1987
• Status: Expired due to Fees

• Current Assignee: Personal Security Associates, Inc.
• Original Assignee: James G. Green Sr
• Inventors: Green, James G. Sr.
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US07/131,198
• Time in Patent Office: 544 Days
• Field of Search: 340/568, 340/572, 340/573, 340/574, 340/321, 340/571
• US Class Current: 340/573.1
• CPC Class Codes: G08B 21/0297 Robbery alarms, e.g. hold-up alarms, bag snatching alarms

Abstract

A personal security device comprises a housing which encloses a battery and an electrically energized signal device such as one or both a buzzer or lamp in series in a normally open circuit. A clip supports the housing on the body of the user and incorporates means for automatically closing the circuit whenever the clip is removed from the body to produce the desired audible or visible signal or both. The housing is shaped so as to maximize opportunity for the sound to be heard or light signal to be seen when the security device is thrown to the ground in an emergency.

Claims

1. A portable personal security device, comprising:

a. a housing having a back surface mounting a flexible clip for receiving an article such as a belt for supporting the housing on the body of the user;

b. an electrically energized signalling device enclosed in said housing;

c. a battery enclosed in said housing;

d. a circuit connecting said signalling device and battery in series enclosed in said housing; and

e. circuit closure means associated with said clip and arranged to be opened by said article when received by said clip to maintain said circuit normally open and to close when said clip is removed from said article to complete said circuit and allow said battery to energize said signalling device.

2. A portable personal security device as claimed in claim 1 wherein said signalling device is audible when energized and said housing is formed with sound transmitting apertures.

3. A portable personal security device as claimed in claim 1 wherein said signalling device comprises a lamp and said housing surrounding said lamp is formed to transmit signalling light therefrom.

4. A portable personal security device as claimed in claim 1 wherein said circuit includes a pair of normally disconnected contacts and aid circuit closure means includes an electrically conductive strip mounted on said clip and operative to connect said contacts and thereby close said circuit when said clip is removed form said article.

5. A portable personal security device as claimed in claim 2 wherein said housing is formed with a plurality of angularly related side surfaces such that said housing when on a ground surface tends to maintain a plurality of such side surfaces in position to transfer sound through said apertures.

6. A portable personal security device as claimed in claim 2 including an electric lamp connected to be energized by said battery when said clip is removed from its body support and mounted in a portion of said housing formed to transmit light therefrom.

7. A portable personal security device as claimed in claim 3 including a second electrical lamp mounted in said housing, an auxiliary switch and associated circuitry enabling said second lamp to be energized by said battery independent of said clip being on or removed form its body support.