Method of transforming a pre-determined force or pressure pattern

Abstract

The present invention is related to a method of transforming a pre-determined force or pressure pattern on a lid element through said lid element onto a second element having a planar or non-planar surface. According to a first method step an optimized preformation-shape of said lid element and/or said second element is calculated dependent on the operating parameters of said second element. At least one of said elements is preformed according to said optimized preformation-shape using a primary shaping or reshaping technique. Said lid element is connected to said second element after application of an external force at at least one predetermined force application point by mechanical fastening or generating an adhesive bond between said elements.

1 . Method of transforming a pre-determined force or pressure pattern on a lid element through said lid element onto a second element having a planar or non-planar surface comprising the following method steps: 
 a) calculating an optimized preformation-shape of said lid-shaped element and/or said second element depending on the operating parameters of said contacting elements,    b) preforming of said lid-shaped element or said second element using a primary shaping or reshaping technique according to the optimized preformation-shape, and    c) connecting said lid-shaped element to said second contacting element after application of an external force at at least one predetermined force application point by mechanical fastening or by generating an adhesive bond between said elements.    
   
   
       2 . Method according to  claim 1 , wherein said preformation according to b) provides for a uniform or intentionally non-uniform pressure distribution over an entire contact surface of said lid-element on said second element.  
   
   
       3 . Method according to  claim 1 , wherein said lid elements and said second element establish a fluid and/or gas containing or processing device uniformly sealed along a sealing zone, maintaining a uniform sealing pressure.  
   
   
       4 . Method according to  claim 1 , wherein said lid element and said second element are sealingly connected with one another along a sealing surface of said second element and a bottom side of said lid element.  
   
   
       5 . Method according to  claim 1 , wherein at least one curvature is preformed in at least one of said elements, in at least one surface thereof.  
   
   
       6 . Method according to  claim 5 , wherein said at least one curvature is preformed in a convex manner.  
   
   
       7 . Method according to  claim 5 , wherein said at least one curvature is preformed in a concave manner.  
   
   
       8 . Method according to  claim 5 , wherein convex and concave curvatures are preformed in said lid element.  
   
   
       9 . Method according to  claim 1 , wherein said lid comprises four corners, and wherein external forces are applied to said lid element in at least one of said four corners at at least one force application point.  
   
   
       10 . Method according to  claim 1 , wherein said external forces are applied to said first contacting lid element along the circumference of an upper rim thereof.  
   
   
       11 . Method according to  claim 10 , wherein said external forces are applied on the upper rim in a plurality of force application points being arranged in predetermined distances with respect to one another.  
   
   
       12 . Method according to  claim 1 , wherein said lid element is sealingly connected to said second element by mechanical fasteners.  
   
   
       13 . Method according to  claim 1 , wherein said first lid element is sealingly connected to said second element by laser-welding along the circumference or at distinct points of a contacting area.  
   
   
       14 . Method according to  claim 13 , wherein after sealingly connecting said lid element to said second element by laser welding or clamping force, a sealing zone is created.  
   
   
       15 . Method according to  claim 1 , wherein in method step a) said optimized preformation shape is calculated dependent on geometry, material thickness of said lid element, material stiffness, desired pressure tightness and desired pressure distribution and dependent on the pressing forces applied at said at least one force application point.  
   
   
       16 . A fluidic device comprising a sealing surface to which a lid-preformed element is sealingly connected, said lid-preformed element in its mounted stage forming a pressure-tight seal on a second element.  
   
   
       17 . The fluidic device according to  claim 16 , wherein said lid-preformed element has a circular shape.  
   
   
       18 . The fluidic device according to  claim 16 , wherein said lid-preformed element has a square- or a rectangular shape.  
   
   
       19 . The fluidic device according to  claim 16 , wherein said lid-preformed element comprises at least one mechanical fastener.  
   
   
       20 . The fluidic device according to  claim 16 , wherein said lid-preformed element comprises a mechanical fastener contacting a hinge on corresponding contacting partner.  
   
   
       21 . The fluidic device according to  claim 16 , wherein said lid-preformed element has a convex curvature on its bottom side towards said sealing surface.  
   
   
       22 . The fluidic device according to  claim 21 , wherein a uniform pressure distribution is maintained within a sealing area.  
   
   
       23 . The fluidic device according to  claim 21 , wherein an intentionally non-uniform pressure distribution is maintained within a sealing area.  
   
   
       24 . The fluidic device according to  claim 22 , wherein the uniform or the intentionally non-uniform pressure distribution between said lid-pre-formed element and said fluidic device is maintained either by at least one mechanical fastener or by a laser weld-connection internally.  
   
   
       25 . The fluidic device according to  claim 23 , wherein the uniform or the intentionally non-uniform pressure distribution between said lid-pre-formed element and said fluidic device is maintained either by at least one mechanical fastener or by a laser weld-connection internally.