US4480596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic elastic lumbar belt
Assignee: TDK Corp
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Filing: 1979-04-20
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Granted: 1984-11-06
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Expires: 1999-04-20
Abstract
Abstract A magnetic belt for medical purposes, which exposes the lumbar portion of a human body with magnetic flux has been found. The magnetic belt comprises an elastic belt body, a flexible sheet removably and slidably mounted on the belt body, and a plurality of permanent magnets removably mounted in said sheet. The belt body is made of elastic cloth and the coefficients of elasticity differs breadthwise. The sheet is made of flexible plastic, such as ABS (Acryl-Butadiene-Styrene), having a plurality of circular holes for accepting the permanent magnets. Each permanent magnet is mounted in a plastic housing or a capsule having a flange which engages with the edge of the hole of said sheet. The permanent magnet is, for instance, an alloy of samarium and cobalt with a surface magnetic flux of approximate 1,200 gauss. The present magnetic belt is, when attached on the lumbar portion, effective for reducing stiffness or pain in the muscles of the human body.
Inventors
- 👤 Noriaki Shumiyashu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:11
CPC Classifications
A; A61; A61N; A61N2/00; A61N2/004; A61N2/008; A61N2/06; A61H; A61H39/00; A61H2039/005; A61H2205/00; A61H2205/08; A61H2205/083
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
148 words
A magnetic elastic lumbar belt comprising an elongated elastic belt having a pocket with an opening therein, said pocket being positioned approximately at the center of the belt and means for looping the said belt at both ends thereof, a flexible sheet having a plurality of holes therethrough, removably inserted in said pocket through the opening therein, wherein each of said holes has a flange extending from the side of the hole towards the center thereof, a plurality of magnet capsule means each of which is removably engaged with the flange of said hole of the sheet, each of the magnet capsule means having a disk shaped permanent magnet and a flexible capsule surrounding the magnet, wherein said flexible capsule has a groove means therein for engaging said flange and wherein said magnet capsule means are removable from said sheet by deforming said flexible capsules surrounding the magnets.
Claim 2
Dependent Claim
148 words
A magnetic elastic lumbar belt comprising an elongated elastic belt having a pocket with an opening therein, said pocket being positioned approximately at the center of the belt and means for looping the said belt at both ends thereof, a flexible sheet having a plurality of holes therethrough, removably inserted in said pocket through the opening therein, wherein each of said holes has a flange extending from the side of the hole towards the center thereof, a plurality of magnet capsule means each of which is removably engaged with the flange of said hole of the sheet, each of the magnet capsule means having a disk shaped permanent magnet and a flexible capsule surrounding the magnet, wherein said flexible capsule has a groove means therein for engaging said flange and wherein said magnet capsule means are removable from said sheet by deforming said flexible capsules surrounding the magnets.
Claim 3
Dependent Claim
50 words
A magnetic lumbar belt according to claim 1, wherein said belt comprises a plurality of elastic belt elements, the width of which are larger at the center of the belt and smaller at the peripheral portion of the belt, thus, the coefficient of elasticity is different in the lateral direction.
Claim 4
Dependent Claim
18 words
A magnetic lumbar belt according to claim 1, wehrein said sheet has five holes for accepting magnetic capsules.
Claim 5
Dependent Claim
18 words
A magnetic lumbar belt according to claim 1, wherein said sheet has six holes for accepting magnet capsules.
Claim 6
Dependent Claim
16 words
A magnetic lumbar belt according to claim 1, wherein said sheet is made of ABS plastics.
Claim 7
Dependent Claim
21 words
A magnetic lumbar belt according to claim 1, wherein said permanent magnet is made of an alloy of samarium and cobalt.
Claim 8
Dependent Claim
16 words
A magnetic lumbar belt according to claim 1, wherein said capsule is made of soft polyethylene.
Claim 9
Dependent Claim
44 words
A magnetic lumbar belt according to claim 1, wherein said permanent magnet has a size of approximate 15 mm in diameter and approximate 2 mm in thickness, and is magnetized approximately to 1,200 gauss at the surface of the same in the axial direction.
Claim 10
Dependent Claim
24 words
A magnetic lumbar belt according to claim 1, wherein said magnet capsule further comprises a magnetic shield at one side of the permanent magnet.
Claim 11
Dependent Claim
112 words
A magnetic sheet comprising a flexible sheet having a plurality of holes, each of said holes having a flange, extending from the side of the hole towards the center thereof, a plurality of magnet capsules each of which is detachably engaged with the flange of said hole of the sheet, each of the magnet capsules having a disk shaped permanent magnet and a flexible capsule covering the magnet and a groove means in said capsule, said permanent magnet being made of an alloy of samarium and cobalt, and said capsule being made of soft polyethylene, whereby said magnet capsules are detachable from said sheet by deforming said flexible capsules surrounding the magnets.
Claim 12
Dependent Claim
112 words
A magnetic sheet comprising a flexible sheet having a plurality of holes, each of said holes having a flange, extending from the side of the hole towards the center thereof, a plurality of magnet capsules each of which is detachably engaged with the flange of said hole of the sheet, each of the magnet capsules having a disk shaped permanent magnet and a flexible capsule covering the magnet and a groove means in said capsule, said permanent magnet being made of an alloy of samarium and cobalt, and said capsule being made of soft polyethylene, whereby said magnet capsules are detachable from said sheet by deforming said flexible capsules surrounding the magnets.
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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) | 1987-11-06 | 1988-05-07 | 1988-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-06 | 1992-05-07 | 1992-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-06 | 1996-05-07 | 1996-11-06 | $7700.00 | Window Closed / Lapsed |