E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
277/18, 277/72
E06B 9/17 (2006.01) E06B 9/40 (2006.01) H01Q 1/08 (2006.01) H01Q 1/52 (2006.01)
Patent
CA 1334537
A deployment and retraction arrangement for a slot cover which is adapted to cover or seal a longitudinally extending slot or space present between at least two adjacent located membranes or panels. More particularly, the arrangement is a rollable deployment and retraction arrangement for selectively deploying and retracting a slot cover employed for covering a slot or space present intermediate two adjacent membranes or panels so as to, preferably, prevent any FR leakage through the slot during radar operation of the panels. The slot cover structure includes an elongated cover member consisting of upper and lower cover portions which are centrally fastened to each other along the longitudinal axis thereof, and with the cover portions being configured in transverse cross-section such that, in the extended deployed position of the slot cover, the upper and lower cover portions have clamshell configurations extending from the central axis, whereby the outer edges of the cover portions come into surface-engaging clamping contact with the surfaces of the applicable membrane or panel which is interposed therebetween, so as to be in essentially slot closing or sealing relationship therewith, and to thereby inhibit any FR leakage through the slot present between the panels, during radar operation. Additionally, suitable deploying and retracting operating structure is provided, which is in operative communication with the slot cover so as to impart a separating action to the lateral edges of the upper and lower cover portions upon initiation of deployment or retraction of the slot cover to thereby prevent any frictional contact between the edges of the slot cover portions and the facing surfaces of the respective panel or membrane which is interposed between the slot cover portions, and thereby minimizing any membrane distortion which could lead to deployment failure or membrane damage.
559028
Grumman Aerospace Corporation
Mcfadden Fincham
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