Submersible vacuum cleaner

Details Submersible vacuum cleaner Submersible vacuum cleaner

2008-06-26

2010-10-05

Karls, Shay L (Department: 3723)

Brushing, scrubbing, and general cleaning

Submerged cleaners with ambient flow guides

Reexamination Certificate

active

07805793

ABSTRACT:
Apparatus for facilitating the removal of material deposited at the bottom (6) of a volume of liquid (7) the apparatus including a suction pump assembly (2) associated with a suction head
ozzle (9) mounted to a user handling element (4) and means (24) drivable by the motor for displacing sucked-in water and (8) to a delivery location (11), in such manner that when used in use the pump assembly (2) can be submerged, and wherein the suction pump assembly (2) includes means (40) for enabling controlled air escape from the vicinity of the means (24) for displacing air from of the pump assembly the arrangement being such as to prevent air blockage of and material flow through the pump following raising of the latter of water.

REFERENCES:
patent: 5317776 (1994-06-01), DeMoura
patent: 5641399 (1997-06-01), Rawlins
patent: 5842243 (1998-12-01), Horvath et al.
patent: 6017400 (2000-01-01), Clark et al.
Hozelock, “Pond Vac product features,” available at http://www.hozelock.com/aquatics/pond-vadpond-vac-2.html; retrieved on Aug. 18, 2008 (1 page).
Hozelock, “Perfect Ponds Made Simple,” available at http://www.hozelock.com/uploads/pdf/33752UK.pdf; retrieved on Aug. 18, 2008 (28 pages).

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