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Filter scraper

  • US 10,596,497 B2
  • Filed: 04/27/2018
  • Issued: 03/24/2020
  • Est. Priority Date: 04/27/2018
  • Status: Active Grant
First Claim
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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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