Liquid purification or separation – Structural installation – Flume stream type
Reexamination Certificate
2005-03-22
2005-03-22
Upton, Christopher (Department: 1724)
Liquid purification or separation
Structural installation
Flume stream type
C210S162000, C210S407000
Reexamination Certificate
active
06869524
ABSTRACT:
A screen system used in fluid channels has a scraper for removing debris from bars in a bar screenfield. The scraper is mounted to a top of a screen system. The scraper is lifted by a rake while simultaneously removing debris from the rake. Once the rake clears the scraper, the scraper returns to an original position. The scraper has arms that have wear plates with curvatures selected to avoid contact with the teeth. The scraper can have a cushioning device to lessen the impact of the scraper as it returns to a rest position.
REFERENCES:
patent: 1912020 (1933-05-01), Steindorf
patent: 2128347 (1938-08-01), Briggs
patent: 2291103 (1942-07-01), Plummer
patent: 2978105 (1961-04-01), Poheim
patent: 3144406 (1964-08-01), Crise
patent: 4709804 (1987-12-01), Duperon
patent: 5565093 (1996-10-01), Frankenberger
patent: 5730862 (1998-03-01), Mahr
patent: 6309540 (2001-10-01), Chang
patent: 1373342 (1974-11-01), None
patent: 1525871 (1978-09-01), None
patent: 1598103 (1981-09-01), None
patent: 1598130 (1981-09-01), None
patent: 2170422 (1986-08-01), None
patent: 2275622 (1994-09-01), None
patent: 2350070 (2000-11-01), None
patent: 9532044 (1995-11-01), None
Bracwell & Patterson, L.L.P.
Headworks, Inc.
Upton Christopher
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