Filter scraper
First Claim
Patent Images
1. A filter apparatus, comprising:
- a filter element including a filter body with an external surface enclosing a filter passage, the filter body including a first end, an opposite second end, and a longitudinal length extending between the first end and the second end;
a scraper element disposed about the external surface and configured to move along the longitudinal length of the filter body;
a rotational screw in combination with the scraper element and extending parallel to the longitudinal length of the filter body, wherein rotation of the rotational screw moves the scraper element along the longitudinal length of the filter body; and
a hose including a nozzle configured to discharge a fluid into a screw thread of the rotational screw, wherein the nozzle is attached to the scraper element and configured to move with the scraper element and the fluid clears debris from the screw thread.
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Abstract
A filter apparatus and method for cleaning filter elements. The filter elements, each including a filter body with an external surface enclosing a filter passage, extend along a longitudinal axis of a vessel housing. A scraper element is disposed about the external surface of each filter body and travels along the longitudinal length of the filter body via a rotational screw to remove deposits. A lower air inlet is included on the vessel to loosen deposits on the filter surfaces, such as during or prior to scraping.
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Citations
18 Claims
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1. A filter apparatus, comprising:
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a filter element including a filter body with an external surface enclosing a filter passage, the filter body including a first end, an opposite second end, and a longitudinal length extending between the first end and the second end; a scraper element disposed about the external surface and configured to move along the longitudinal length of the filter body; a rotational screw in combination with the scraper element and extending parallel to the longitudinal length of the filter body, wherein rotation of the rotational screw moves the scraper element along the longitudinal length of the filter body; and a hose including a nozzle configured to discharge a fluid into a screw thread of the rotational screw, wherein the nozzle is attached to the scraper element and configured to move with the scraper element and the fluid clears debris from the screw thread. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 14, 15, 16, 17, 18)
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9. A filter apparatus, comprising:
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a plurality of filter elements arranged spaced apart and parallel, each of the filter elements including an external surface with a longitudinal length; a scraper array including a plurality of scraper elements, each of the scraper elements disposed about the external surface of, and configured to move and remove deposits along the longitudinal length of, a corresponding one of the filter elements; a rotational screw in combination with the scraper array and extending parallel to the longitudinal length of each of the filter elements, wherein rotation of the rotational screw moves the scraper array along the filter elements; and a hose including a nozzle connected to the scraper array and configured to discharge a fluid into a screw thread of the rotational screw, wherein the fluid clears debris from the screw thread. - View Dependent Claims (10, 11, 12, 13)
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Specification