Liquid purification or separation – With repair or assembling means
Reexamination Certificate
2005-07-18
2008-09-16
Prince, Fred (Department: 1797)
Liquid purification or separation
With repair or assembling means
C210S360100
Reexamination Certificate
active
07425264
ABSTRACT:
The centrifuge has truncated-cone-like separating screen arranged in support basket and held in the bottom thereof by lower flange. Lower flange has notched surface which penetrates into screen. The screen and the basket both have an annular upper edge and an upper flange which is attached to the upper edge of the basket and covers the upper edge of the screen. Finally, the screen is formed by a number of segments attached in pairs by a joint with a T-shaped section.
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patent: 1495837 (1924-05-01), Garske
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patent: 4372856 (1983-02-01), Morrison
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patent: 5330637 (1994-07-01), Nemedi
patent: 6579458 (2003-06-01), Mickelat et al.
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patent: 1621252 (2006-02-01), None
patent: 2 365 374 (1978-04-01), None
French Preliminary Search Report from FR Application No. 0451664 dated Feb. 25, 2005.
Patterson & Sheridan LLP
Prince Fred
Weatherford / Lamb, Inc.
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