Security bulkhead and door construction
First Claim
1. A security barrier for preventing unauthorized access to a first sensitive area from a second adjacent area comprising:
- (a) a security bulkhead disposed between the first sensitive area and the second adjacent area;
(b) a frame a mounted within said bulkhead;
(c) a security door assembly hingedly connected to said frame for movement between an open position and a closed position, said security door assembly comprising;
(i) a movable portion movable between first and second positions; and
(ii) restraint means operably associated with said movable portion for controllably restraining movement of said movable portion, said restraint means comprising an elongated cable; and
(iii) operating means operably associated with said restraint means for operating said restraint means.
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Accused Products
Abstract
A security barrier made up of a specially constructed bulkhead and a novel security door hingedly mounted within the security bulkhead that provides substantial protection against assault by potential aggressors. The security barrier can be used in various types of sensitive areas, but is particularly well-suited for use in commercial aircraft to separate the passenger compartment from the pilot'"'"'s compartment and thereby protect the pilots compartment from assault by terrorists and other armed aggressors. The bulkhead is made up of a plurality of sealably interconnected armor protected panels that effectively thwart access to the pilots compartment via the bulkhead. The security door is of a laminate construction that is hingedly mounted within the security bulkhead and uniquely comprises a movable portion movable from a first position to a second position upon the detection of a pressure differential between the passenger compartment and the pilot'"'"'s compartment. The security door further includes a restraint mechanism for controllably restraining the movement of the movable portion of the door assembly. In one form of the invention, the restraint mechanism includes at least one elongated engagement member, such as an elongated cable, that is carried by the door assembly for engagement with the movable portion of the door assembly
28 Citations
22 Claims
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1. A security barrier for preventing unauthorized access to a first sensitive area from a second adjacent area comprising:
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(a) a security bulkhead disposed between the first sensitive area and the second adjacent area;
(b) a frame a mounted within said bulkhead;
(c) a security door assembly hingedly connected to said frame for movement between an open position and a closed position, said security door assembly comprising;
(i) a movable portion movable between first and second positions; and
(ii) restraint means operably associated with said movable portion for controllably restraining movement of said movable portion, said restraint means comprising an elongated cable; and
(iii) operating means operably associated with said restraint means for operating said restraint means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. In combination with a bulkhead disposed between a pressurized passenger compartment and pilot'"'"'s compartment, a security door assembly comprising a frame a mounted within said bulkhead and a security door hingedly connected to said frame, said security door assembly comprising:
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(a) a movable portion movable from a first position to a second position upon a depressurization of the passenger compartment;
(b) restraint means operably associated with said movable portion for controllably restraining the movement of said movable portion of the door assembly, said restraint means comprising;
(i) at least one elongated engagement member carried by said door assembly for engagement with said movable portion of said door assembly, said engagement member having a first end connected to said door assembly and a second end; and
(ii) connector means carried by said door assembly for releasable interconnection with said second end of said engagement member;
(c) operating means operably associated with said restraint means for operating said restraint means to release said second end of said engagement member from said connector means; and
(d) sensor means carried by one of said bulkhead and said door assembly for sensing pressure within the passenger compartment, said sensor means being operably associated with said operating means for operating said operating means upon sensing a depressurization of the pressure compartment. - View Dependent Claims (14, 15, 16, 17)
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18. In combination with a bulkhead disposed between a pressurized passenger compartment and pilot'"'"'s compartment, a security door assembly comprising a frame a mounted within said bulkhead and a security door hingedly connected to said frame, said security door comprising:
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(a) a movable portion movable from a first position to a second position upon a depressurization of the passenger compartment;
(b) restraint means operably associated with said movable portion for controllably restraining the movement of said movable portion of the door assembly, said restraint means comprising;
(i) at least one elongated cable carried by said door assembly for engagement with said movable portion of said door assembly, said cable having a first end connected to said door assembly and a second end;
(ii) connector means carried by said door assembly for releasably interconnecting said cable with said frame; and
(iii) operating means carried by said door assembly and operably associated with said connector means for operating said connector means to release said cable from said frame; and
(iv) sensor means carried by one of said door assembly and said bulkhead for sensing pressure within one of the passenger compartments and the pilot'"'"'s compartment, said sensor means being operably associated with said operating means for operating said operating means upon sensing a change of pressure between the passenger compartment and the pilot'"'"'s compartment. - View Dependent Claims (19, 20, 21, 22)
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Specification