Patent ID: 7204384
Filing Date: 2007-04-17
Classification: B65D,F16J,G21F,Y10S,Y10T

Abstract:
1. A cover with a container ( 1 a ) of a dual cover system for the gastight closure of the container ( 1 a ) for containing radioactive or toxic waste materials, the container cover ( 1 ) and the container ( 1 a ) being adapted in their design to each other and having a round or polygonal shape with a seal surface ( 10 ) arranged on said container cover ( 1 ) and a seal ( 10 ′) between said container ( 1 a ) and said container cover ( 1 ), said container cover ( 1 ) including at least two clamping closure mechanisms ( 11 – 14 ) distributed around the circumference of said container cover ( 1 ), a clamping closure mechanism operating structure ( 2 – 7 ) arranged in the center of said container cover ( 1 ) and being coupled to said clamping closure mechanisms ( 11 – 14 ) for synchronous operation thereof, said container ( 1 a ) having recesses ( 14 ′) for form-locking engagement of said clamping closure mechanisms ( 11 – 14 ), said clamping closure mechanism operating structure ( 2 – 7 ) including a central grasping head ( 2 ) for engagement by an operating structure of a cover of a dual cover system, and including a collar stud ( 4 ) which axially movably supported in said central grasping head ( 2 ), a spring ( 5 ) engaging said collar stud ( 4 ) for actuating said clamping closure mechanisms ( 11 – 14 ), operating arms ( 8 ) extending from said clamping closure mechanism operating structure ( 2 – 7 ) to said clamping closure mechanisms ( 11 – 14 ), each clamping closure mechanism ( 11 – 14 ) comprising an outwardly extending elbow lever structure with an upper elbow lever pivotally supported by an upper pivotal support bearing ( 12 ) on said container cover ( 1 ) and a lower elbow lever ( 11 ) pivotally mounted on the operating arm ( 8 ) and pivotally connected to said upper elbow lever to form an elbow ( 14 ), said operating arm ( 8 ) being connected to said collar stud ( 4 ) for operating said clamping closure mechanism ( 11 – 14 ), such that, upon upward movement of said collar stud ( 4 ) and said operating arms ( 8 ) by said spring ( 5 ), the elbow ( 14 ) is pivoted outwardly and upwardly into said recess ( 14 ′) for engagement therein with the container wall 1 a .