B - Operations – Transporting – 07 – B
Patent
B - Operations, Transporting
07
B
B07B 1/28 (2006.01) B01D 29/01 (2006.01) B01D 33/00 (2006.01) B07B 1/46 (2006.01)
Patent
CA 2152602
A screening screen assembly (10) for a vibratory screening machine (35) including an apertured plate (11), and a bonded subassembly (25) of an undulating support screen (27) and fine screening screen (29) and finer screening screen (30) bonded to each other by a fused plastic grid (24) and bonded to the apertured plate. A method of fabricating a screening screen assembly for a vibratory screening machine including the steps of providing a support screen (27), superimposing a plastic grid (24) onto the support screen, superimposing a fine screening screen (29) onto the plastic grid (24), superimposing a finer screening screen (30) onto the fine screening screen, applying heat and pressure to the superimposed screens to fuse the plastic grid and thereby form a flat bonded laminate subassembly by causing the fused plastic grid to permeate the fine screen and the finer screen and the support screen, forming the bonded laminate subassembly into an undulating shape, providing an apertured plate (11), and bonding the undulating bonded subassembly to the apertured plate.
Un ensemble crible (10) destiné à un cribleur à vibration (35) comprend une plaque perforée (11) et un sous-ensemble (25) constitué d'un crible de support ondulé (27), d'un crible fin (29) et d'un crible plus fin (30), collés ensemble par une grille en plastique fusible (24), ledit sous-ensemble étant collé à la plaque perforée. Un procédé de fabrication d'un tel ensemble crible pour cribleur à vibration consiste à prendre un crible de support (27), à placer une grille en plastique (24) sur l'écran de support, à placer un crible fin (29) sur la grille en plastique (24), à placer un crible plus fin (30) sur le crible fin, à appliquer de la chaleur et une pression aux cribles superposés pour faire fondre la grille en plastique et ainsi former un sous-ensemble statifié plat, dont les éléments sont collés, ladite grille en plastique fondue se répandant dans l'écran fin, l'écran plus fin, et l'écran de support, à donner une forme ondulée audit sous-ensemble statifié, et à coller le sous-ensemble ondulé sur une plaque perforée (11).
Derrick Manufacturing Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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