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Surveillance apparatus

  • US 4,540,977 A
  • Filed: 09/30/1982
  • Issued: 09/10/1985
  • Est. Priority Date: 09/30/1982
  • Status: Expired due to Fees
First Claim
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1. Apparatus for monitoring against theft, comprising detection and alarm means that react to an abnormal presence, said means mounted inside a box, said box provided with a fixed integral front face, a removable support plate provided with means making it possible to attach said support plate to a part of a building, said box provided with hinge components, intended to engage cooperating hinge components hinge components located along an edge of said support plate to allow opening of the rear of said box as said box is displaced about hinge components away from said support plate, the opposite edge of said support plate including a part of a lock whose other part is attached to said box, said support plate provided with electric terminals to connect the apparatus to a source of power, said terminals connected to a first contact part of a connector attached to the support plate, a second contact part of the connector being connected by flexible wire to circuits forming part of said means of detection and alarm within said box, said detection and alarm means attached in the box so as to be able to be removed with the box after said displacement of said box away from said support plate and subsequent separation of said first and second contact parts of the connector, and said alarm means including an acoustic warning device activated by said detection means.

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