System for disinfecting the water lines of a dental unit

Claim 2

A water line disinfecting system for disinfecting water lines of a dental unit, said water lines to be connected to a source of water at a first pressure, comprising: a first unidirectional valve device for establishing a first unidirectional connection from the source to the water lines whereby water at the first pressure from the source is supplied to the water lines through the first unidirectional valve device; a reservoir of liquid disinfectant; a second unidirectional valve device for establishing a second unidirectional connection from the reservoir of liquid disinfectant to the water lines; means for pressurizing the reservoir of liquid disinfectant at a second pressure higher than the first pressure in order to supply the liquid disinfectant from the reservoir to the water lines through the second unidirectional valve device; wherein the first unidirectional valve device comprises means responsive to the difference between the first and second pressures for preventing the liquid disinfectant supplied to the water lines from reaching the source and wherein, when the reservoir of liquid disinfectant is not pressurized, the second unidirectional valve device comprises means responsive to the first pressure for preventing the water supplied to the water lines from reaching the reservoir; and wherein the reservoir of liquid disinfectant comprises an upper neck and a bottom, and wherein said water line disinfecting system further comprises a housing on which an upper stopper fitting into said neck and a lower reservoir bottom support means are mounted, whereby for mounting the reservoir of liquid disinfectant on said housing, one successively tilts said reservoir, places said neck on said stopper and slides said reservoir bottom on said support means.

Claim 3

A water line disinfecting system as recited in claim 1, in which the bottom of the reservoir of liquid disinfectant is formed with a rounded edge to facilitate sliding of said bottom on the support means.

Claim 4

A water line disinfecting system for disinfecting water lines of a dental unit, said water lines to be connected to a source of water at a first pressure, comprising: a first unidirectional valve device for establishing a first unidirectional connection from the source to the water lines whereby water at the first pressure from the source is supplied to the water lines through the first unidirectional valve device; a reservoir of liquid disinfectant; a second unidirectional valve device for establishing a second unidirectional connection from the reservoir of liquid disinfectant to the water lines; means for pressurizing the reservoir of liquid disinfectant at a second pressure higher than the first pressure in order to supply the liquid disinfectant from the reservoir to the water lines through the second unidirectional valve device; wherein the first unidirectional valve device comprises means responsive to the difference between the first and second pressures for preventing the liquid disinfectant supplied to the water lines from reaching the source and wherein, when the reservoir of liquid disinfectant is not pressurized, the second unidirectional valve device comprises means responsive to the first pressure for preventing the water supplied to the water lines from reaching the reservoir; a second reservoir in which clean water is stored; a third unidirectional valve device for establishing a third unidirectional connection from the second reservoir to the water lines; means for pressurizing the second reservoir at a third pressure higher than the first pressure to supply the clean water from the second reservoir to the water lines of the dental unit when supply of the water from the source is interrupted or when water from the source is contaminated; and wherein, when the second reservoir is not pressurized, the third unidirectional valve device comprises means responsive to the first pressure or the second pressure for preventing the water from the source or the liquid disinfectant supplied to the water lines from reaching the second reservoir.

Claim 5

A water line disinfecting system for disinfecting water lines of a dental unit, said water lines to be connected to a source of water at a first pressure, comprising: a first unidirectional valve device for establishing a first unidirectional connection from the source to the water lines whereby water at the first pressure from the source is supplied to the water lines through the first unidirectional valve device; a reservoir of liquid disinfectant; a second unidirectional valve device for establishing a second unidirectional connection from the reservoir of liquid disinfectant to the water lines; means for pressurizing the reservoir of liquid disinfectant at a second pressure higher than the first pressure in order to supply the liquid disinfectant from the reservoir to the water lines through the second unidirectional valve device; wherein the first unidirectional valve device comprises means responsive to the difference between the first and second pressures for preventing the liquid disinfectant supplied to the water lines from reaching the source and wherein, when the reservoir of liquid disinfectant is not pressurized, the second unidirectional valve device comprises means responsive to the first pressure for preventing the water supplied to the water lines from reaching the reservoir; a second reservoir in which clean water is stored; a third unidirectional valve device for establishing a third unidirectional connection from the second reservoir to the water lines; means for pressurizing the second reservoir at a third pressure higher than the first pressure to supply the clean water from the second reservoir to the water lines of the dental unit when supply of the water from the source is interrupted or when water from the source is contaminated; and wherein, when the second reservoir is not pressurized, the third unidirectional valve device comprises means responsive to the first pressure or the second pressure for preventing the water from the source or the liquid disinfectant supplied to the water lines from reaching the second reservoir.

Claim 6

A water line disinfecting system as recited in claim 3, in which said means for pressurizing the second reservoir comprises an air compressor already equipping the dental unit.

Claim 7

A water line disinfecting system as recited in claim 3, in which said third unidirectional valve device comprises a unidirectional check valve.

Claim 8

A water line disinfecting system as recited in claim 3, wherein the second reservoir comprises an upper neck and a bottom, and wherein said water line disinfecting system further comprises a housing on which an upper stopper fitting into said neck and a lower reservoir support means are mounted, whereby, for mounting the second reservoir on said housing, one successively tilts the second reservoir, places the neck onto said stopper and slides the reservoir bottom on said support means.

Claim 9

A water line disinfecting system as recited in claim 6, in which said bottom of the second reservoir comprises a rounded edge to facilitate sliding of said bottom on the support means.

Claim 10

A water line disinfecting system for disinfecting water lines of a dental unit, said water lines to be connected to a source of water at a first pressure, comprising: a first unidirectional valve device for establishing a first unidirectional connection from the source to the water lines whereby water at the first pressure from the source is supplied to the water lines through the first unidirectional valve device; a reservoir of liquid disinfectant; a second unidirectional valve device for establishing a second unidirectional connection from the reservoir of liquid disinfectant to the water lines; means for pressurizing the reservoir of liquid disinfectant at a second pressure higher than the first pressure in order to supply the liquid disinfectant from the reservoir to the water lines through the second unidirectional valve device; wherein the first unidirectional valve device comprises means responsive to the difference between the first and second pressures for preventing the liquid disinfectant supplied to the water lines from reaching the source and wherein, when the reservoir of liquid disinfectant is not pressurized, the second unidirectional valve device comprises means responsive to the first pressure for preventing the water supplied to the water lines from reaching the reservoir; and wherein the reservoir of liquid disinfectant is a first reservoir, and wherein said water line disinfecting system further comprises: a second reservoir in which liquid disinfectant or clean water is stored; means for pressurizing said second reservoir at a third pressure higher than the first pressure to supply the liquid disinfectant or the clean water from said second reservoir to the water lines of the dental unit; a housing formed of a hollow column; and means for superposing said first and second reservoirs in said hollow column.

Claim 11

A water line disinfecting system for disinfecting water lines of a dental unit, said water lines to be connected to a source of water at a first pressure, comprising: a first unidirectional valve device for establishing a first unidirectional connection from the source to the water lines whereby water at the first pressure from the source is supplied to the water lines through the first unidirectional valve device; a reservoir of liquid disinfectant; a second unidirectional valve device for establishing a second unidirectional connection from the reservoir of liquid disinfectant to the water lines; means for pressurizing the reservoir of liquid disinfectant at a second pressure higher than the first pressure in order to supply the liquid disinfectant from the reservoir to the water lines through the second unidirectional valve device; wherein the first unidirectional valve device comprises means responsive to the difference between the first and second pressures for preventing the liquid disinfectant supplied to the water lines from reaching the source and wherein, when the reservoir of liquid disinfectant is not pressurized, the second unidirectional valve device comprises means responsive to the first pressure for preventing the water supplied to the water lines from reaching the reservoir; and wherein the reservoir of liquid disinfectant is a first reservoir, and wherein said water line disinfecting system further comprises: a second reservoir in which liquid disinfectant or clean water is stored; means for pressurizing said second reservoir at a third pressure higher than the first pressure to supply the liquid disinfectant or the clean water from said second reservoir to the water lines of the dental unit; a housing formed of a hollow column; and means for superposing said first and second reservoirs in said hollow column.

Claim 12

A water line disinfecting system for disinfecting water lines of a dental unit, said water lines to be connected to a source of water at a first pressure, comprising: a first unidirectional valve device for establishing a first unidirectional connection from the source to the water lines whereby water at the first pressure from the source is supplied to the water lines through the first unidirectional valve device; a reservoir of liquid disinfectant; a second unidirectional valve device for establishing a second unidirectional connection from the reservoir of liquid disinfectant to the water lines; means for pressurizing the reservoir of liquid disinfectant at a second pressure higher than the first pressure in order to supply the liquid disinfectant from the reservoir to the water lines through the second unidirectional valve device; wherein the first unidirectional valve device comprises means responsive to the difference between the first and second pressures for preventing the liquid disinfectant supplied to the water lines from reaching the source and wherein, when the reservoir of liquid disinfectant is not pressurized, the second unidirectional valve device comprises means responsive to the first pressure for preventing the water supplied to the water lines from reaching the reservoir; means for supplying the liquid disinfectant from the water lines to a suction apparatus already equipping the dental unit; and wherein said means for supplying the liquid disinfectant from the water lines to the suction apparatus comprises a funnel means.

Claim 13

A water line disinfecting system for disinfecting water lines of a dental unit, said water lines to be connected to a source of water at a first pressure, comprising: a first unidirectional valve device for establishing a first unidirectional connection from the source to the water lines whereby water at the first pressure from the source is supplied to the water lines through the first unidirectional valve device; a reservoir of liquid disinfectant; a second unidirectional valve device for establishing a second unidirectional connection from the reservoir of liquid disinfectant to the water lines; means for pressurizing the reservoir of liquid disinfectant at a second pressure higher than the first pressure in order to supply the liquid disinfectant from the reservoir to the water lines through the second unidirectional valve device; wherein the first unidirectional valve device comprises means responsive to the difference between the first and second pressures for preventing the liquid disinfectant supplied to the water lines from reaching the source and wherein, when the reservoir of liquid disinfectant is not pressurized, the second unidirectional valve device comprises means responsive to the first pressure for preventing the water supplied to the water lines from reaching the reservoir; means for supplying the liquid disinfectant from the water lines to a suction apparatus already equipping the dental unit; and wherein said means for supplying the liquid disinfectant from the water lines to the suction apparatus comprises a funnel means.