Vacuum head for cleaning surfaces, inside a water pool, and a method therefor

A manually displaceable, shallow vacuum head for cleaning surfaces of the floor and adjacent sides, inside a water pool containing water, for using with water pool facilities having a water pump and a water source having substantially municipal water-tap pressures,

• said vacuum head comprising:
• a top,
• a lip downwardly extending from said top, and terminating into a rounded free end, for contacting with a portion of surfaces inside a water pool, said rounded free end having a rounded peripheral cross-section, said lip defining with said top, and in cooperation with a portion of surfaces inside a water pool, under said vacuum head, a shallow confinement zone within said vacuum head,
• a water outlet away from said portion of surfaces, having one end and another end, said one end connected through said top within said lip, and said another end for joining a water pump generating a vacuum,
• said lip cooperating with said top and said water outlet to create a negative pressure between said top, said rounded free end of said lip, and said portion of surfaces inside a water pool, under said vacuum head,
• from 2 to 5 water jets disposed between said lip and said water outlet, and in close proximity but spaced from said portion of surfaces, directing water toward said portion of surfaces inside a water pool, at an angle ranging from 30.degree. to 60.degree. with said portion of surfaces inside a water pool, within said shallow confinement zone, under said vacuum head, and in a direction toward said water outlet,
• whereby
• the presence of water in said shallow confinement zone, generates a flow of water driven away from said portion of surfaces inside a water pool, and toward water outlet, at least some of said water to be drawn from said water pool between said rounded free end of said lip, and said portion of surfaces inside a water pool in contact with said rounded free end of said lip, under said vacuum head,
• said jets hitting an angle ranging from 30.degree. to 60.degree. with said portion of surfaces inside a water pool, removing the dirt along said portion of surfaces to be cleaned in a water pool toward said water outlet, creating a suspension momentarily withheld above said water jets within boundaries as defined by said lip and said top, and then removed from said water pool via said water outlet along with said flow of water moving from said pool, between said rounded free end of said lip, and said portion of surfaces inside a water pool in contact with said rounded free end of said lip, driven toward said water outlet.

A method for cleaning surfaces of the floor and adjacent sides inside a water pool,

• said method comprising:
• with a manually displaceable vacuum head to be used with water pools containing water, and having a water pump and a water source having a water-tap pressure,
• said vacuum head having a top, and a lip mounted on said vacuum head, downwardly extending from said vacuum head, and terminating into a free end, for contacting with a portion of surfaces inside a water pool, said free end having a rounded peripheral cross-section, said vacuum head defining with said lip, a shallow confinement zone with a portion of surfaces inside a water pool, under said vacuum head,
• and a water outlet in said confinement zone, away from said portion of surfaces, and connected to a water pump generating a vacuum,
• creating in said confinement zone a negative pressure zone, resulting in a flow of water driven toward said water outlet, and thus blocking displacement from the confinement zone to a water pool,
• and inside said negative pressure confinement zone, and in close proximity, but spaced from said portion of surfaces, directing from 2 to 5 water jets at an angle ranging from 30.degree. to 60.degree. with said portion of surfaces inside a water pool, within said confinement zone, and toward said water outlet
• impinging with each individual jet, a jet of water upon surfaces to be cleaned a water pool containing water,
• said water from said jets hitting said surfaces inside a water pool within said confinement zone, to remove dirt from said portion of surfaces, and said dirt together with said water from said jets and drawn with at least some water drawn from said water pool between said lip and said portion of surfaces inside a water pool, under said vacuum head in contact with said lip, substantially confining said dirt within said confinement zone, and displacing it along said flow of water driven toward said water outlet.