Magnetic screen clamping

Classifying – separating – and assorting solids – Sifting – Elements

Reexamination Certificate

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Details

C209S399000, C209S403000, C209S409000

Reexamination Certificate

active

07922003

ABSTRACT:
A magnetic claiming system for a shale shaker including at least one screen having at least two side ends extending between a first side and a second side and at least one attachment surface, at least one mating surface of a shale shaker configured to receive at least one screen, wherein the shale shaker has a first end and a second end, and at least on magnet disposed between the at least one screen and the shale shaker, wherein the at least one magnet is configured to magnetically couple the at least one screen to the shale shaker is disclosed. A method for replacing a screen in a shale shaker including activating at least one decoupling apparatus, wherein a magnetic clamping system includes the at least one decoupling apparatus, removing at least one screen from the shale shaker, deactivating the at least one coupling apparatus, and installing at least one screen into the shale shaker is also disclosed.

REFERENCES:
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patent: 5045184 (1991-09-01), Arkles
patent: 5816413 (1998-10-01), Boccabella et al.
patent: 6715611 (2004-04-01), Crabbe et al.
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patent: 7575617 (2009-08-01), Ferguson
patent: 2004/0245155 (2004-12-01), Strong et al.
PCT International Search Report issued in PCT Application No. PCT/US2007/080075 dated Feb. 15, 2008 (3 pages).
PCT Written Opinion issued in PCT Application No. PCT/US2007/080075 dated Feb. 15, 2008 (4 pages).
Office Action issued in related Canadian patent application No. 2,664,331; Dated Jul. 20, 2010 (2 pages).

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