Hydrojet

Claim 2

In combination with a spa, tub or swimming pool defining a receptacle for water, and a pump for recirculating water into and out of said receptacle, the improvement which comprises: a jet head consisting of: an inner member having a central inlet for receiving water from said pump and a plurality of outwardly facing discharge passageways to each discharge a jet of water into the receptacle; an outer member extending around said inner member defining an annular chamber, said outer member having an orifice axially aligned with each discharge passageway; an air inlet tube in fluid communication with said chamber at one end of said tube and a source of air at the other end of said tube; and means for supporting and radially repositioning said jet head from a central position in the receptacle.

Claim 3

The combination of claim 1, wherein said supporting means comprises a post extending up in said receptacle and carrying said jet head on its upper end, said post defining a water passageway for conducting water from said pump to said jet head, said post being radially movable.

Claim 4

The combination of claim 2, wherein said post is adjustable for enabling the vertical adjustment of said jet head to various positions in said receptacle.

Claim 5

In a hydrotherapeutic system having a source of water under pressure and a water-filled receptacle, a water inlet tube having an entrance end connected to said source of water and an exit end; a jet head having a water inlet connected to said exit end of the water inlet tube, said jet head being positioned substantially centrally of said receptacle and submerged under water in the receptacle, said jet head comprising: a water diverter in fluid engagement with said water inlet and having at least one generally horizontal row of openings therein for passing water laterally outward; at least one annular ring extending around said diverter for blocking said openings therein; an annular member extending around the diverter and in spaced relation from said diverter defining an annular chamber about the diverter which receives said ring, said annular member having orifices axially aligned with said openings in the diverter; said ring being contained in said annular chamber to selectively block both said openings in the diverter and said orifices in said annular member and having openings therein communicating with said chamber; and an air inlet in fluid communication with said annular chamber through said openings in said ring; an air inlet tube in fluid communication with said air inlet at one end and a source of air at the other end; and adjustment means for adjusting the location axially of the annular ring.

Claim 6

In a hydrotherapeutic system having a source of water under pressure and a water-filled receptacle, a water inlet tube having an entrance end connected to said source of water and an exit end; a jet head having a water inlet connected to said exit end of the water inlet tube, said jet head being positioned substantially centrally of said receptacle and submerged under water in the receptacle, said jet head comprising: a water diverter in fluid engagement with said water inlet and having at least one generally horizontal row of openings therein for passing water laterally outward; at least one annular ring extending around said diverter for blocking said openings therein; an annular member extending around the diverter and in spaced relation from said diverter defining an annular chamber about the diverter which receives said ring, said annular member having orifices axially aligned with said openings in the diverter; said ring being contained in said annular chamber to selectively block both said openings in the diverter and said orifices in said annular member and having openings therein communicating with said chamber; and an air inlet in fluid communication with said annular chamber through said openings in said ring; an air inlet tube in fluid communication with said air inlet at one end and a source of air at the other end; and adjustment means for adjusting the location axially of the annular ring.

Claim 7

In a jet assembly for use in a spa or the like, the combination of a water inlet tube for connection at one end to a source of water under pressure and a jet head on the opposite end of said water inlet tube, said head having: an annular outer member formed with a plurality of rows of jet orifices, with the orifices in each row spaced apart circumferentially and the rows of orifices spaced apart lengthwise of the jet head; a water diverter extending longitudinally inside said annular outer member and spaced radially inward from said outer member to provide an annular chamber between them, said diverter having an internal longitudinal chamber which at one end opens into said water inlet tube and at its opposite end is closed, said diverter having a plurality of rows of openings which are aligned individually with said jet orifices in said outer member for discharging water to said jet orifices; a plurality of blocking rings in said annular chamber between the diverter and said outer member to block said openings in the diverter from the corresponding jet orifices in said outer member; and means for selectively adjusting said rings lengthwise of said annular chamber to uncover a selected row of openings in the diverter and a corresponding row of jet orifices in said outer member and block the remaining rows of openings in the diverter and jet orifices in said outer member.

Claim 8

In a jet assembly for use in a spa or the like, the combination of a water inlet tube for connection at one end to a source of water under pressure and a jet head on the opposite end of said water inlet tube, said head having: an annular outer member formed with a plurality of rows of jet orifices, with the orifices in each row spaced apart circumferentially and the rows of orifices spaced apart lengthwise of the jet head; a water diverter extending longitudinally inside said annular outer member and spaced radially inward from said outer member to provide an annular chamber between them, said diverter having an internal longitudinal chamber which at one end opens into said water inlet tube and at its opposite end is closed, said diverter having a plurality of rows of openings which are aligned individually with said jet orifices in said outer member for discharging water to said jet orifices; a plurality of blocking rings in said annular chamber between the diverter and said outer member to block said openings in the diverter from the corresponding jet orifices in said outer member; and means for selectively adjusting said rings lengthwise of said annular chamber to uncover a selected row of openings in the diverter and a corresponding row of jet orifices in said outer member and block the remaining rows of openings in the diverter and jet orifices in said outer member.

Claim 9

A jet assembly according to claim 5 and further comprising: means for introducing ambient air into said outer member at one end of the jet head; and wherein said blocking rings have longitudinal passageways for passing air from said one end of the jet head into said annular chamber at the location of the uncovered openings in the diverter to enable air to be entrained in the water issuing from the corresponding jet orifices in said outer member.

Claim 10

A spray assembly according to claim 6, wherein said means for introducing air is at the opposite end of the jet head from said water inlet tube.

Claim 11

A jet assembly according to claim 6, wherein said means for introducing air is a tube concentric with said water inlet tube at the same end of the jet head as said water inlet tube.

Claim 12

A jet assembly according to claim 5, wherein: said rows of jet orifices in the outer member include a top row, upper and lower middle rows spaced in succession below said upper row, and a bottom row spaced below said middle rows; said rows of openings in the diverter include a top row aligned with the top row of jet orifices, upper and lower middle rows aligned respectively with the upper and lower middle rows of jet orifices, and a bottom row aligned with the bottom row of jet orifices; and said blocking rings include an upper ring slidable between a position blocking said top row of openings in the diverter and a position below said top row of openings in the diverter, a middle ring slidable between a position blocking said upper middle row of openings in the diverter and a position blocking said lower middle row of openings in the diverter, and a lower ring slidable between a position blocking said bottom row of openings in the diverter and a position above said lower row of openings in which it blocks said lower middle row of openings in the diverter; upper push-pull rods connected to said upper ring and extending up from the jet head; and lower push-pull rods connected to said lower ring and extending down from the jet head.

Claim 13

In a jet assembly for use in a spa or the like, the combination of a water inlet tube for connection at one end to a source of water under pressure, and a jet head on the opposite end of said water inlet tube, said jet head having: an annular outer member formed with a plurality of rows of jet orifices, with the orifices in each row spaced apart circumferentially and the rows of orifices spaced apart lengthwise of the jet head; a water diverter extending longitudinally inside said annular outer member and spaced radially inward from said outer member to provide an annular chamber between them, said diverter having an internal longitudinal chamber which at one end opens into said water inlet tube and at its opposite end is closed, said diverter having a plurality of rows of openings which are aligned individually with said jet orifices in said outer member for discharging water to said jet orifices; means adjustably positioned in said annular chamber for selectively blocking certain rows of said openings in the diverter and jet orifices in said outer member; and means mounting said jet head rotatably on said water inlet tube; said openings in the diverter and said jet orifices in said outer member being operatively arranged to direct water laterally outward in a non-radial direction from the jet head to impart rotation to the jet head.

Claim 14

In a jet assembly for use in a spa or the like, the combination of a water inlet tube for connection at one end to a source of water under pressure, and a jet head on the opposite end of said water inlet tube, said jet head having: an annular outer member formed with a plurality of rows of jet orifices, with the orifices in each row spaced apart circumferentially and the rows of orifices spaced apart lengthwise of the jet head; a water diverter extending longitudinally inside said annular outer member and spaced radially inward from said outer member to provide an annular chamber between them, said diverter having an internal longitudinal chamber which at one end opens into said water inlet tube and at its opposite end is closed, said diverter having a plurality of rows of openings which are aligned individually with said jet orifices in said outer member for discharging water to said jet orifices; means adjustably positioned in said annular chamber for selectively blocking certain rows of said openings in the diverter and jet orifices in said outer member; and means mounting said jet head rotatably on said water inlet tube; said openings in the diverter and said jet orifices in said outer member being operatively arranged to direct water laterally outward in a non-radial direction from the jet head to impart rotation to the jet head.

Claim 15

In a jet assembly for use in a spa or the like, the combination of a water inlet tube for connection at one end to a source of water under pressure, and a jet head on the opposite end of said water inlet tube, said jet head having: an annular outer member formed with a plurality of rows of jet orifices, with the orifices in each row spaced apart circumferentially and the rows of orifices spaced apart lengthwise of the jet head; a water diverter extending longitudinally inside said annular outer member and spaced radially inward from said outer member to provide an annular chamber between them, said diverter having an internal longitudinal chamber which at one end opens into said water inlet tube and at its opposite end is closed, said diverter having a plurality of rows of openings which are aligned individually with said jet orifices in said outer member for discharging water to said jet orifices; means adjustably positioned in said annular chamber for selectively blocking certain rows of said openings in the diverter and jet orifices in said outer member; an air inlet tube extending up from said jet head and having its lower end operatively arranged to pass air into said annular chamber; and a float member on said air inlet tube below its upper end.

Claim 16

In a jet assembly for use in a spa or the like, the combination of a water inlet tube for connection at one end to a source of water under pressure, and a jet head on the opposite end of said water inlet tube, said jet head having: an annular outer member formed with a plurality of rows of jet orifices, with the orifices in each row spaced apart circumferentially and the rows of orifices spaced apart lengthwise of the jet head; a water diverter extending longitudinally inside said annular outer member and spaced radially inward from said outer member to provide an annular chamber between them, said diverter having an internal longitudinal chamber which at one end opens into said water inlet tube and at its opposite end is closed, said diverter having a plurality of rows of openings which are aligned individually with said jet orifices in said outer member for discharging water to said jet orifices; means adjustably positioned in said annular chamber for selectively blocking certain rows of said openings in the diverter and jet orifices in said outer member; an air inlet tube extending up from said jet head and having its lower end operatively arranged to pass air into said annular chamber; and a float member on said air inlet tube below its upper end.