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US 2008/0258476 A1Published application
Security system
OwnerRobert David Simpsoninventor
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OwnerRobert David Simpsoninventor
Estimating the term…
A security system for constraining the degree to which a closure leaf such as a door may be opened of the type has an inoperative position in which it does not block the opening and closing of the closure leaf, and an operative position in which it does so block the opening of the closure leaf beyond a predetermined constrained degree. The system is selectively activatable for effecting movement between said inoperative and said operative position. The improvement provides for the provision of an electric actuator which includes a motor having a rotatable output shaft, an arm operating in response to movement of the output shaft of the actuator, whereby the actuator drives the arm both into and out of the operative position; and at least a portion of the arm when in the operative position is moved into a position where the arm acts as a barrier to the door leaf being opened beyond a predetermined degree.
A security system for constraining the degree to which a closure leaf such as a door may be opened of the type having an inoperative position in which it does not block the opening and closing of the closure leaf, and an operative position in which it does so block the opening of the closure leaf beyond a predetermined constrained degree;
A security system for constraining the opening of a closure leaf such as a door beyond a pre-determined partially opened degree comprising a chassis;
A security system for a closure leaf such as a door comprising a unit which pops into sight when the closure leaf is open and which returns to a retracted position as the leaf is closed, wherein said unit incorporates a powered security component which is switched on when the unit is in its popped out position.
A security system for a closure leaf such as a door comprising a unit which pops into sight when the closure leaf is open and which returns to a retracted position as the leaf is closed, characterised in that said unit incorporates a powered security component, which is switched on when the unit is in its popped out position and a linkage member extending between a portion of said security system secured adjacent to said closure leaf and a portion of said security system secured on said closure leaf;
A security system according to claim 18, wherein said security component incorporates a sprayer.
A security system according to claim 18, wherein said security component incorporates a camera.
Dependencies are inferred from the claim text.