US3842980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic supporting means
Assignee: Individual
•
Filing: 1973-01-15
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Granted: 1974-10-22
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Expires: 1993-01-15
Abstract
Abstract A magnetic supporting means comprising a holder composed of magnetically conductive material having bottom and side portions, a magnetic source member received within said holder proximate, to its bottom and side portions and means secured with the bottom portion of the holder for attaching the holder to a supporting surface. The holder is composed of a metallic material with its side portions extending beyond the magnetic source member which is received therewithin, and the member comprises a flexible plastic material with permanently magnetized ferrite particles embedded therein.
Inventors
- 👤 M Kushner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:47
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/02; H01F7/0205; H01F7/021; H01F7/0215; B; B25; B25H; B25H3/00; B25H3/04; Y; Y10; Y10S; Y10S211/00; Y10S211/01
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
345 words
A magnetic supporting means comprising a holder which is an elongated channel of U-shaped cross section composed of magnetically conductive material having bottom and side portions, a unitary elongated magnetic source member received within and substantially coextensive with the channel of said holder proximate to its bottom and side portions, means secured with the bottom portion of said holder for attaching said holder to a supporting surface, the channel of said holder having a bottom portion and a pair of upstanding leg portions and said member comprising an elongated strip of flexible plastic material with permanently magnetized ferrite particles embedded therein received within and in contact with the bottom and leg portions of said holder, the leg portions of said holder each having an elongated edge extending beyond said member, the bottom portion of said channel having an elongated outer surface, said means for attaching said holder to a supporting surface comprising an elongated adhesive material secured with the outer surface of the bottom portion of said holder, said holder being made of a steel material and said plastic strip being substantially equal in length to said holder and is in close contact therewith, the strip of said member being of substantially rectangular cross section with a pair of flat top and bottom surfaces and a pair of side surfaces, the bottom surface of said strip contacting the bottom portion of said holder while the top surface of said strip faces outwardly, and said side surfaces of said strip each contact a respective leg portion of said holder, the edges of the leg portion of said holder each extending beyond the top surface of said strip, said member has anisotropic properties with permanently magnetized ferrite particles with the direction of magnetization being between the top and bottom surfaces of said strip and a thin cover strip of non-metallic material with an exposed top surface secured over the top surface and about the ends of said member, the edges and leg portions of said holder each extending beyond the exposed top surface of said cover strip.
Claim 2
Dependent Claim
345 words
A magnetic supporting means comprising a holder which is an elongated channel of U-shaped cross section composed of magnetically conductive material having bottom and side portions, a unitary elongated magnetic source member received within and substantially coextensive with the channel of said holder proximate to its bottom and side portions, means secured with the bottom portion of said holder for attaching said holder to a supporting surface, the channel of said holder having a bottom portion and a pair of upstanding leg portions and said member comprising an elongated strip of flexible plastic material with permanently magnetized ferrite particles embedded therein received within and in contact with the bottom and leg portions of said holder, the leg portions of said holder each having an elongated edge extending beyond said member, the bottom portion of said channel having an elongated outer surface, said means for attaching said holder to a supporting surface comprising an elongated adhesive material secured with the outer surface of the bottom portion of said holder, said holder being made of a steel material and said plastic strip being substantially equal in length to said holder and is in close contact therewith, the strip of said member being of substantially rectangular cross section with a pair of flat top and bottom surfaces and a pair of side surfaces, the bottom surface of said strip contacting the bottom portion of said holder while the top surface of said strip faces outwardly, and said side surfaces of said strip each contact a respective leg portion of said holder, the edges of the leg portion of said holder each extending beyond the top surface of said strip, said member has anisotropic properties with permanently magnetized ferrite particles with the direction of magnetization being between the top and bottom surfaces of said strip and a thin cover strip of non-metallic material with an exposed top surface secured over the top surface and about the ends of said member, the edges and leg portions of said holder each extending beyond the exposed top surface of said cover strip.
Claim 3
Dependent Claim
47 words
The supporting means of claim 1 in which said adhesive material comprises a double-faced pressure-sensitive adhesive tape with a first face secured with said member and a second face covered by a coated paper strip which is removable for attaching of the holder to a supporting surface.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |