US3841250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical chlorinator
Assignee: MORGEN BERKELEY AND CO Ltd
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Filing: 1972-12-21
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Granted: 1974-10-15
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Expires: 1992-12-21
Abstract
Abstract An electrolytic chlorinator and a ship embodying the chlorinator. The chlorinator is suitable for fixing in a seawater conduit without requiring a special recess and has elongate channels defined by upstanding vanes which are aligned with the direction of flow of the water. The sides of the vanes which define the channels are provided with electrolysing electrodes.
Inventors
- 👤 P Davies
- 👤 J Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:53
CPC Classifications
B; B63; B63B; B63B59/00; B63B59/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
88 words
An electrolytic chlorinator having an essentially flat rectangular base portion of plastic material adapted to be fitted on the inside of the wall of a sea-water conduit in a ship; a plurality of vanes of plastic material moulded integrally with the base portion each extending from end to end of the base portion and upstanding therefrom, there being at least one space between the vanes constituting at least one elongate open-ended channel; and electrolysing electrodes extending over the major parts of the vane surfaces which bound the channel.
Claim 2
Dependent Claim
88 words
An electrolytic chlorinator having an essentially flat rectangular base portion of plastic material adapted to be fitted on the inside of the wall of a sea-water conduit in a ship; a plurality of vanes of plastic material moulded integrally with the base portion each extending from end to end of the base portion and upstanding therefrom, there being at least one space between the vanes constituting at least one elongate open-ended channel; and electrolysing electrodes extending over the major parts of the vane surfaces which bound the channel.
Claim 3
Dependent Claim
20 words
A chlorinator as claimed in claim 1 wherein there are at least three vanes which define a plurality of channels.
Claim 4
Dependent Claim
16 words
A chlorinator as claimed in claim 2 wherein there are six vanes which define five channels.
Claim 5
Dependent Claim
20 words
A chlorinator as claimed in claim 2 wherein the channels are closed at their upper sides by a removable cover.
Claim 6
Dependent Claim
75 words
A chlorinator as claimed in claim 1 wherein the electrolysing electrodes are plates having a noble metal deposit on one side only, the plates being folded about the vanes with the noble metal deposit outermost, each plate being folded about the tip or the base of the respective vane, the folds being alternated so that a vane with a fold about its base is flanked by vanes with folds about their tips and vice versa.
Claim 7
Dependent Claim
40 words
A chlorinator as claimed in claim 1 wherein there are provided guard electrodes on the vanes near their ends, the guard electrodes being insulated from the electrolysing electrodes so that in operation they can be maintained at a positive potential.
Claim 8
Dependent Claim
101 words
A ship having a sea-water inlet and fitted with at least one electrolytic chlorinator, said chlorinator having an essentially flat rectangular base portion of plastic material adapted to be fitted on the inside of the wall of a sea-water conduit in a ship; a plurality of vanes of plastic material moulded integrally with the base portion eAch extending from end to end of the base portion and upstanding therefrom, there being at least one space between the vanes constituting at least one elongate open-ended channel; and electrolysing electrodes extending over the major parts of the vane surfaces which bound the channel.
Claim 9
Dependent Claim
101 words
A ship having a sea-water inlet and fitted with at least one electrolytic chlorinator, said chlorinator having an essentially flat rectangular base portion of plastic material adapted to be fitted on the inside of the wall of a sea-water conduit in a ship; a plurality of vanes of plastic material moulded integrally with the base portion eAch extending from end to end of the base portion and upstanding therefrom, there being at least one space between the vanes constituting at least one elongate open-ended channel; and electrolysing electrodes extending over the major parts of the vane surfaces which bound the channel.
Claim 10
Dependent Claim
70 words
A ship as claimed in claim 7 wherein the chlorinator has guard electrodes on the vanes near their ends, the guard electrodes being insulated from the electrolysing electrodes, and the power supply is such that the potential between the electrolysing electrodes is changed in direction periodically, and the guard electrodes are always more positive than the potential at the point in the electrolytic path where the guard electrodes are situated.
Claim 11
Dependent Claim
22 words
A ship as claimed in claim 8 wherein the cyclic periodicity of the electrolysing current is between 20 seconds and 20 minutes.
Claim 12
Dependent Claim
52 words
A ship as claimed in claim 7 wherein a cathodic protection arrangement is provided and the chlorinator is made an anode of the cathodic protection system, means being provided to apply a direct bias current to offset positively the average potential of the electrolysing electrodes of the chlorinator which is an anode.
Claim 13
Dependent Claim
45 words
A ship as claimed in claim 7 wherein means are provided for supplying to the electrolysing electrodes a steady bias current sufficient to maintain the potential of the chlorinator vanes at potentials at least equal to, in the positive sense, the potential of surrounding metalwork.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |