Self cleaning pool cleaner
AssigneeMaytronics Ltd.
InventorsShay Witelson, Boaz Ben Dov
Life of this patent
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Abstract
A pool cleaner that may include a drive mechanism for moving the pool cleaner; a housing that has a first fluid opening and a second fluid opening; a filtering unit that comprises a filter enclosure and a filtering element; a fluid flow mechanism for inducing a flow of fluid through the filtering element in a first direction during a filtering process and for inducing a flow of the fluid through the filtering element at a substantially opposite direction during a backwash process; and a debris trap that is configured to receive debris from the filtering element during the backwash process and to substantially prevent the debris from exiting the debris trap during the filtering process.
Claims53
A pool cleaner comprising:
- a drive mechanism for moving the pool cleaner;
- a housing that has a first fluid opening and a second fluid opening;
- a filtering unit that comprises a filter enclosure and a filtering element;
- and
- a fluid flow mechanism for inducing a flow of fluid through the filtering unit in a first direction during a filtering process and for inducing a flow of the fluid through the filtering element at another direction during a backwash process;
- and wherein at least one of the following is true:
- (a) the fluid flow mechanism comprises a fluid flow control element that is positioned outside the filtering element and is configured to direct fluid towards filtering unit sidewalls, wherein the fluid flow control element is a sprinkler;
- (b) the fluid flow mechanism comprises a fluid flow control element that is positioned outside the filtering element and is configured to direct fluid towards the filtering unit sidewalls, wherein the fluid flow control element is configured to eject multiple fluid jets towards the filtering element;
- (c) the fluid flow mechanism comprises a fluid flow control element that is positioned outside the filtering element and is configured to direct fluid towards the filtering unit sidewalls, wherein the pool cleaner further comprising a scanning mechanism that is configured to move the fluid flow control element in relation of to the filtering element during the backwash process;
- and
- (d) the fluid flow mechanism comprises multiple fluid flow control elements that are positioned outside the filtering element and are configured to direct fluid towards the filtering unit.
Dependencies are inferred from the claim text.