Method and apparatus for securing attache cases
First Claim
1. A method for securing a transport container such as an attache case against unauthorized handling comprising the steps of providing an alarm and at least one sensor capable of sensing at least two conditions relative to the forces on said attache case, each of said at least two conditions being selectable as a safety state, placing said attache case under a selected force, and selecting one of said at least two conditions to correspond to said selected force as the safety state, the other or others of said sensed conditions corresponding to a force or forces on said case deviating from said selected safety state condition by a predetermined value and connecting said at least one sensor to said alarm so that said alarm is inactive during the selected safety state condition and activated on the occurence of the other or others of said sensed conditions.
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Abstract
An attache case is secured against unauthorized handling by providing an alarm and at least one sensor capable of sensing at least two conditions relative to the forces on said attache case. One of the conditions constitutes a predetermined safety state and the other of the conditions constitutes a force on the case deviating from said safety state by a predetermined value. The sensor is connected to the alarm by a trigger circuit so that the alarm is inactive during one condition and active during the other condition.
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Citations
34 Claims
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1. A method for securing a transport container such as an attache case against unauthorized handling comprising the steps of providing an alarm and at least one sensor capable of sensing at least two conditions relative to the forces on said attache case, each of said at least two conditions being selectable as a safety state, placing said attache case under a selected force, and selecting one of said at least two conditions to correspond to said selected force as the safety state, the other or others of said sensed conditions corresponding to a force or forces on said case deviating from said selected safety state condition by a predetermined value and connecting said at least one sensor to said alarm so that said alarm is inactive during the selected safety state condition and activated on the occurence of the other or others of said sensed conditions.
- 2. Apparatus for securing a transport container such as an attache case against unauthorized handling comprising a source of energy, an alarm and at least one sensor capable of sensing at least two conditions corresponding to forces acting on said attache case, means for selecting any one of the sensed conditions from among the at least two sensed conditions as a safety state and means connecting said sensor to said alarm so that said alarm is inactive during the safety state condition and is activated on occurrence of the other or others of the sensed conditions.
Specification