US3791864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of ornamenting articles by means of magnetically oriented particles
Assignee: Magnetfabrik Bonn GmbH
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Filing: 1971-11-05
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Granted: 1974-02-12
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Expires: 1991-11-05
Abstract
Abstract A patterned effect can be produced in coatings applied to any surface by employing a preliminary coating which includes a liquid vehicle in which permanent magnet particles are suspended; the coating being applied and then hardened, after which the particles are magnetized under the influence of magnetic lines of force arranged in a predetermined pattern, and another coating containing magnetically orientable particles is applied, which particles become oriented by the magnetic field product by the particles first applied.
Inventors
- 👤 E Steingroever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:32
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/20; B05D5/00; B05D5/06; B05D5/061; B44; B44C; B44C1/00; H; H01; H01F; H01F13/00; H01F13/003; H01F41/00; H01F41/14; H01F41/16; H01F7/00; H01F7/02; H01F7/0231; H01F7/0247; B05D7/00; B05D7/50; B05D7/52; B05D7/54
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
12 words
Method of claim 1, wherein said magnetically orientable particles comprise lamellar iron.
Claim 2
Dependent Claim
40 words
Method of claim 1, wherein said binder is combined with magnetizable permanent magnetic particles having high coercivity and consisting of a ferrite of the type MO.6Fe2O3, wherein M is at least one of the elements Ba, Sr, Ca and Pb.
Claim 3
Dependent Claim
12 words
Method of claim 1, wherein said magnetically orientable particles comprise rod-shaped iron.
Claim 4
Dependent Claim
10 words
Method of claim 1, wherein said binder comprises a primer.
Claim 5
Dependent Claim
12 words
Method of claim 1, wherein said second coating produces a lustrous finish.
Claim 6
Dependent Claim
30 words
Method of claim 1, which includes the step of applying at least one intermediate coating after said binder and prior to the application of the coating including magnetically orientable particles.
Claim 7
Dependent Claim
12 words
Method of claim 1, wherein said magnetically orientable particles comprise powdered iron.
Claim 8
Dependent Claim
12 words
Method of claim 7, wherein said intermediate coating produces a lustrous finish.
Claim 9
Dependent Claim
12 words
Method of claim 7, wherein said intermediate coating comprises a synthetic plastic.
Claim 10
Dependent Claim
11 words
Method of claim 1, wherein said object comprises a steel plate.
Claim 11
Dependent Claim
25 words
Method of claim 1, which includes the step of subjecting said magnetic particles to the inFluence of magnetic lines of force to define said pattern.
Claim 12
Dependent Claim
20 words
Method of claim 12, which includes the step of utilizing a permanent magnet to supply said magnetic lines of force.
Claim 13
Dependent Claim
19 words
Method of claim 12, which includes the step of utilizing an electromagnet to supply said magnetic lines of force.
References Cited (Backward Citations)
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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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |