Peripheral sealing system for pre-tensioned screens

Details Peripheral sealing system for pre-tensioned screens Peripheral sealing system for pre-tensioned screens

E - Fixed Constructions

21

B

E21B 43/08 (2006.01)

Patent

CA 2664446

A system including a first screen having a first frame and a first sealing element attached to an outer perimeter of the first frame, and a second screen disposed adjacent the first screen, the second screen having a second frame and a second sealing element attached to an outer perimeter of the second frame, wherein the first sealing element and the second sealing element provide a seal between the first screen and the second screen is disclosed. Further, a method of forming a screen frame including forming a frame and attaching a sealing element to an outer perimeter of the frame is disclosed. Additionally, a shaker screen including a frame and a sealing element attached to an outer perimeter of the frame, wherein the sealing element is attached by one selected from thermal bonding and co-molding is disclosed.

L'invention concerne un système incluant un premier tamis comportant un premier cadre et un premier élément d'étanchéité fixé sur le périmètre extérieur du premier cadre ainsi qu'un second tamis disposé de manière contiguë au premier tamis, le second tamis comportant un second cadre et un second élément d'étanchéité fixé au périmètre extérieur du second cadre, le premier élément d'étanchéité et le second élément d'étanchéité établissant un joint entre le premier tamis et le second tamis. En outre, l'invention concerne un procédé de formation d'un cadre de tamis incluant la formation d'un cadre et la fixation d'un élément d'étanchéité sur le périmètre extérieur du cadre. En outre, l'invention concerne un tamis vibrant pour secousses incluant un cadre et un élément d'étanchéité fixé au périmètre extérieur du cadre, l'élément d'étanchéité étant fixé par une technique sélectionnée parmi la soudure thermique et le moulage simultané.

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