Method and apparatus for repairing screens

Details Method and apparatus for repairing screens Method and apparatus for repairing screens

2005-03-29

2005-03-29

Pham, Minh-Chau T. (Department: 1724)

Stock material or miscellaneous articles

All metal or with adjacent metals

Embodying fibers interengaged or between layers

C428S683000, C428S081000, C428S223000, C428S401000, C428S594000, C428S596000, C210S495000, C210S499000, C029S897000, C029S897150, C228S262410, C209S401000, C209S402000, C209S403000, C209S404000, C209S405000

Reexamination Certificate

active

06872466

ABSTRACT:
A method of plugging an area of damaged mesh in a sifting screen. The method is applicable to screens in which woven wire mesh is stretched, tensioned and secured over a supporting frame containing a plurality of windows and in which local damage to the mesh is in an area of the mesh which overlies one of the windows. The method has the steps of inserting into the window a device which is a close fit therein, and securing the device in the window so as to completely cover the area of damaged mesh. The device may be a former having stretched thereacross and secured thereto mesh similar to that stretched across the window in question, or simply a plate or block. The device may be secured in place by a force or interference fit, mechanical means, or adhesive, or the device may be resiliently deformable to allow it to be pushed past a projection in the window, so as to snap fit the device in place.

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patent: 5626234 (1997-05-01), Cook et al.
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patent: 6220449 (2001-04-01), Schulte et al.
patent: 6675975 (2004-01-01), Cook et al.
patent: 6713190 (2004-03-01), Cook et al.
patent: 6722504 (2004-04-01), Schulte et al.
patent: 6736270 (2004-05-01), Adams et al.
patent: WO-9200133 (1992-01-01), None

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