Submersible vacuum cleaner
US7805793B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 26, 2008 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Jun 26, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K63/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
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/nozzle (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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.