Suction device designed to suck air and liquid from a planar surface, and scraper blade for such a device
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United States of America Patent
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Jan 3, 2017
Grant Date -
Jan 14, 2016
app pub date -
Feb 28, 2014
filing date -
Mar 4, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A suction device sucks air and liquid from a planar surface, and the scraper blade active portion moves on a surface. The active portion is in the form of a single blade, made from a flexible or semi-rigid material, intended to be moved in one direction against the planar surface. There is an internal cavity connected to a mechanism for sucking air and liquid. At a distal portion of the blade and behind the ridge to be moved on the surface, two walls together form an angle and meet at the ridge. A first wall is presented first towards the surface to be scraped during a scraping operation having, alongside and close to the ridge, a plurality of holes opening into the cavity.
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