Patents Represented by Attorney Bracwell & Patterson, L.L.P.

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  • Scraper arm for rake screen
    Patent number: 6869524
    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.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: March 22, 2005
    Assignee: Headworks, Inc.
    Inventor: Gerald Seidl