US3832509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Split-type magnetic field concentrator
Assignee: Individual
•
Filing: 1973-05-29
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Granted: 1974-08-27
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Expires: 1993-05-29
Abstract
Abstract A split-type magnetic field concentrator to be used in an inductor for magnetic pulse treatment of metals, consisting of two parts which, when joined together, form an aperture for placing therein an article being treated, said parts of the split-type concentrator are insulated from each other in one joint by means of an insulating gasket and contact each other in the other joint, the contacting end of one of the parts being provided with a recess to improve the electric contact between said parts.
Inventors
- 👤 V Mikhailov
- 👤 S Pisarevskaya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:47
CPC Classifications
B; B21; B21D; B21D26/00; B21D26/14; H; H01; H01F; H01F7/00; H01F7/06; H01F7/20
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
149 words
A split-type magnetic field concentrator for use in an inductor for the magnetic pulse treatment of articles, comprising; a pair of complementary concentrator parts connectable to each other, said parts being shaped so as to, upon being joined, form a central aperture for receiving said articles being treated and to peripherally encompass the latter, said parts including oppositely located, radially extending connecting joints, electrically insulating gasket means being interposed on the surface of one of said joints for electrically insulating said parts from each other at said joint, and radially extending recess means being formed in one of said parts in the contacting surface of the othEr of said joints so as to provide radially inwardly and outwardly spaced areas of electrical contact between said parts at said last-mentioned joint and cause a uniform flow of electrical current about said aperture in close proximity to the article being treated.
Claim 2
Dependent Claim
149 words
A split-type magnetic field concentrator for use in an inductor for the magnetic pulse treatment of articles, comprising; a pair of complementary concentrator parts connectable to each other, said parts being shaped so as to, upon being joined, form a central aperture for receiving said articles being treated and to peripherally encompass the latter, said parts including oppositely located, radially extending connecting joints, electrically insulating gasket means being interposed on the surface of one of said joints for electrically insulating said parts from each other at said joint, and radially extending recess means being formed in one of said parts in the contacting surface of the othEr of said joints so as to provide radially inwardly and outwardly spaced areas of electrical contact between said parts at said last-mentioned joint and cause a uniform flow of electrical current about said aperture in close proximity to the article being treated.
Claim 3
Dependent Claim
34 words
A concentrator as claimed in claim 1, comprising a layer of a highly electroconductive and corrosion-resistant material being coated on at least the areas of electrical contact between said parts at said other joint.
References Cited (Backward Citations)
US3124726A
Cited
US2577113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |