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US 4,287,635 AGranted
Wet and dry vacuum cleaner
OwnerPaul G. Jacobsinventor
Life of this patent
Estimating the term…
Abstract
A vacuum cleaner for vacuum cleaning wet or dry surfaces is provided which includes an easily removable recovery tank which forms a portion of a vacuum chamber, and into which refuse or dirt picked up by the vacuum cleaner enters through a port arranged above the tank and centered thereover. Various different types of dirt-collecting devices can be used within the recovery tank without requiring any physical connection to or through the recovery tank itself.
Claims6
A vacuum cleaner for vacuum cleaning wet or dry surfaces, said vacuum cleaner comprising:
- a support structure;
- an open top recovery tank for receiving soiled material removed from said surface, said tank being releasably mounted in said structure;
- a cover on said tank hinged to said support structure and having a seal for cooperating with the periphery of said open top and forming a vacuum chamber in said tank;
- a fan mounted on said cover, said fan having an air inlet and an air outlet;
- a first passage through said cover placing said inlet of said fan in communication with said vacuum chamber;
- and
- a second passage through said cover, said second passage at one end opening into said vacuum chamber above and geometrically centered over said vacuum chamber and having a means at its other end for connecting to a vacuum conduit through which material removed from said surface moves toward said recovery tank.
4 more elements
Dependencies are inferred from the claim text.