Vacuum cleaner
First Claim
Patent Images
1. A vacuum cleaner comprising:
- a support structure;
an open recovery tank for receiving soiled material to be retained in said vacuum cleaner, said tank being releasably mounted in said structure;
a cover on said tank having a seal for cooperating with the periphery of said open top, forming a vacuum chamber in said tank, said cover being hinged to said support structure by a hollow hinge means;
a fan mounted on said support structure, said fan having an air inlet and an air outlet;
a first passage through said cover for permitting said soiled material to pass into said vacuum chamber; and
a second passage through said cover placing said inlet of said fan in communication with said vacuum chamber, a portion of said second passage being comprised of said hollow hinge means.
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Abstract
A vacuum cleaner is provided which includes an easily removable recovery tank mounted on a support structure and having a cover on the tank forming a vacuum chamber in the tank, the cover being hinged to the support structure by a hollow hinge. A vacuum fan is mounted on the support structure and draws air from the vacuum chamber through the cover and through the hollow hinge.
49 Citations
16 Claims
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1. A vacuum cleaner comprising:
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a support structure; an open recovery tank for receiving soiled material to be retained in said vacuum cleaner, said tank being releasably mounted in said structure; a cover on said tank having a seal for cooperating with the periphery of said open top, forming a vacuum chamber in said tank, said cover being hinged to said support structure by a hollow hinge means; a fan mounted on said support structure, said fan having an air inlet and an air outlet; a first passage through said cover for permitting said soiled material to pass into said vacuum chamber; and a second passage through said cover placing said inlet of said fan in communication with said vacuum chamber, a portion of said second passage being comprised of said hollow hinge means. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A vacuum cleaner comprising:
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a support structure; an open-faced recovery tank for receiving soiled material to be retained in said vacuum cleaner, said tank being releasably mounted in said structure; means for closing said tank and thereby forming a vacuum chamber therein; means for drawing air out of said vacuum chamber, said drawing means being mounted on said support structure; an inlet passage through said closing means for permitting soiled material to pass into said vacuum chamber; an outlet passage through said closing means, said outlet passage providing an air flow path for placing said drawing means in communication with said vacuum chamber; and means for pivoting said closing means, said pivoting means defining a portion of said air flow path. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A vacuum cleaner supported on a movable base, said vacuum cleaner comprising:
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an open-faced recovery tank for receiving soiled material to be retained in said vacuum cleaner, said tank being releasably mounted in the movable base; means for closing said tank and thereby forming a vacuum chamber therein; a fan mounted on the movable base, said fan having an air inlet and an air outlet; a first passage through said closing means for permitting soiled material to pass into said vacuum chamber; a second passage through said closing means placing said inlet of said fan in communication with said vacuum chamber; a hollow hinge providing a point of attachment for said closing means to the movable base, the interior of said hollow hinge forming a portion of said second passage; and means for filtering soil from the air exiting said closing means, said filtering means being interposed in said second passage between said vacuum chamber and said hollow hinge. - View Dependent Claims (14, 15, 16)
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Specification