US4422934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic device for the treatment of calcareous fluids
Assignee: Debney Spencer Industries Ltd
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Filing: 1982-06-02
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Granted: 1983-12-27
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Expires: 2002-06-02
Abstract
Abstract A device is shown for magnetically treating liquids to inhibit the deposit of scale in plumbing systems, appliances, boilers, etc. The device has an elongate housing with an inlet and an outlet for the flow of liquid therethrough. A support structure is located inside the housing to retain a plurality of longitudinally spaced-apart magnets. The magnets are held in position by a plurality of transverse holding elements which are positioned so that the magnets are angularly disposed in a helical arrangement. The magnets are directly immersed in the liquid flowing through the device.
Inventors
- 👤 Howard A. Debney
- 👤 Darrell C. Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:55
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/48; C02F1/481; F; F28; F28F; F28F19/00; F28F19/004
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
172 words
A device for magnetically treating water to prevent the formation of scale, the device comprising: an elongate housing having an inlet and an outlet for the flow of water therethrough, said housing being dimensioned so as not to restrict liquid flow through the device and to prevent the formation of settlement reservoirs inside the housing; a support member located in the housing; a plurality of transverse holding elements in the form of metal plate members connected to the support member and arranged longitudinally spaced-apart inside the housing, said holding elements being arranged in pairs with each pair being arranged in parallel; a plurality of magnets located inside the housing for directly contacting the water in the housing, the magnets being angularly disposed in a helical arrangement and oriented with their poles all facing the same direction, each magnet being located between and retained in position by a respective pair of holding elements; and clamping means connected between the support member and the holding elements for clamping the magnets between the holding elements.
Claim 2
Independent Claim
172 words
A device for magnetically treating water to prevent the formation of scale, the device comprising: an elongate housing having an inlet and an outlet for the flow of water therethrough, said housing being dimensioned so as not to restrict liquid flow through the device and to prevent the formation of settlement reservoirs inside the housing; a support member located in the housing; a plurality of transverse holding elements in the form of metal plate members connected to the support member and arranged longitudinally spaced-apart inside the housing, said holding elements being arranged in pairs with each pair being arranged in parallel; a plurality of magnets located inside the housing for directly contacting the water in the housing, the magnets being angularly disposed in a helical arrangement and oriented with their poles all facing the same direction, each magnet being located between and retained in position by a respective pair of holding elements; and clamping means connected between the support member and the holding elements for clamping the magnets between the holding elements.
Claim 3
Dependent Claim
20 words
A device as claimed in claim 1 wherein the magnets are orientated with their south poles facing the housing inlet.
Claim 4
Dependent Claim
13 words
A device as claimed in claim 2 wherein the magnets are ceramic magnets.
Claim 5
Dependent Claim
21 words
A device as claimed in claim 1 wherein a magnet is located at each end of a pair of holding elements.
Claim 6
Dependent Claim
47 words
A device as claimed in claim 4 wherein the support member is an elongate threaded rod located to pass through the centre of each holding element, and wherein the clamping means are nuts threaded onto the rod to engage the holding elements and clamp the magnets therebetween.
Claim 7
Dependent Claim
20 words
A device as claimed in claim 4 wherein the magnets are orientated with their south poles facing the housing inlet.
Claim 8
Dependent Claim
48 words
A device as claimed in claim 1 wherein the holding elements are in the form of transverse crosses in plan view, a magnet being located at each distal end of a pair of holding elements, the magnets thereby being retained in a double helix arrangement inside the housing.
Claim 9
Dependent Claim
22 words
A device as claimed in claim 7 wherein the support member is located to pass through the centre of each holding element.
Claim 10
Dependent Claim
47 words
A device as claimed in claim 7 wherein the support member is an elongate threaded rod located to pass through the centre of each holding element, and wherein the clamping means are nuts threaded onto the rod to engage the holding elements and clamp the magnets therebetween.
Claim 11
Dependent Claim
37 words
A device as claimed in claim 1, wherein the support member is an elongate threaded rod, and wherein the clamping means are nuts threaded onto the rod to engage the holding elements and clamp the magnets therebetween.
Claim 12
Dependent Claim
18 words
A device as claimed in claim 1 wherein said metal place members are made from magnetically attracted metal.
Claim 13
Dependent Claim
17 words
A device as claimed in claim 11 wherein said plates are each at least 1/4 inch thick.
Claim 14
Dependent Claim
20 words
A device as claimed in claim 11 wherein the magnets are oriented with their south poles facing the housing inlet.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |