US3778836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic antenna having a block or circuit components therein
Assignee: Individual
•
Filing: 1971-04-27
•
Granted: 1973-12-11
•
Expires: 1991-04-27
Abstract
Abstract An antenna for a receiver comprising a magnetic core in the form of a thin layer having a thickness less than 50 microns superposed on a casing of a receiver or on a block of components of the receiver, and a winding wound on said magnetic core and connected electrically to the components in the casing or in the block, the winding serving as the antenna for the receiver. A receiver which comprises said antenna.
Inventors
- 👤 T Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:52
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24; H01Q7/00; H01Q7/06; H01Q7/08
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
81 words
An antenna consisting essentially of a casing for a receiver having at least a portion thereof in the shape of a cylinder, a magnetic core in the form of a thin layer consisting of high magnetic permeability material superposed on the cylindrical portion of the casing, said layer having a thickness less than 50 microns and having substantially no intrinsic strength and a winding wound on said magnetic core, the casing supplying the strength for supporting the winding and the core.
Claim 2
Dependent Claim
81 words
An antenna consisting essentially of a casing for a receiver having at least a portion thereof in the shape of a cylinder, a magnetic core in the form of a thin layer consisting of high magnetic permeability material superposed on the cylindrical portion of the casing, said layer having a thickness less than 50 microns and having substantially no intrinsic strength and a winding wound on said magnetic core, the casing supplying the strength for supporting the winding and the core.
Claim 3
Dependent Claim
35 words
An antenna as claimed in claim 1 wherein said magnetic core is of a magnetic metal and has at least one gap therein extending the length of said core parallel to the longitudinal axis thereof.
Claim 4
Dependent Claim
37 words
An antenna as claimed in claim 1 wherein said thin layer is a thin sheet of magnetic metal wrapped around said casing a plurality of times the total thickness of the layer being less than 50 microns.
Claim 5
Dependent Claim
19 words
The combination as claimed in claim 1 in which said thin layer is a single layer of magnetic material.
Claim 6
Dependent Claim
29 words
The combination as claimed in claim 1 in which said thin layer is a plurality of thicknesses of magnetic material having a total thickness of less than 50 microns.
Claim 7
Dependent Claim
75 words
In combination, a block of components for a receiver having at least a portion thereof in the shape of a cylinder and an antenna consisTing essentially of a magnetic core in the form of a thin layer consisting of high magnetic permeability material superposed on the cylindrical portion of said block of components, said layer having a thickness less than 50 microns and having substantially no intrinsic strength, and a winding on said magnetic core.
Claim 8
Dependent Claim
75 words
In combination, a block of components for a receiver having at least a portion thereof in the shape of a cylinder and an antenna consisTing essentially of a magnetic core in the form of a thin layer consisting of high magnetic permeability material superposed on the cylindrical portion of said block of components, said layer having a thickness less than 50 microns and having substantially no intrinsic strength, and a winding on said magnetic core.
Claim 9
Dependent Claim
35 words
The combination as claimed in claim 6 wherein said magnetic core is of a magnetic metal and has at least one gap therein extending the length of said core parallel to the longitudinal axis thereof.
Claim 10
Dependent Claim
39 words
The combination as claimed in claim 6 wherein said thin layer is a thin sheet of magnetic metal wrapped around said block of components a plurality of times, the total thickness of the layer being less than 50 microns.
Claim 11
Dependent Claim
19 words
The combination as claimed in claim 6 in which said thin layer is a single layer of magnetic material.
Claim 12
Dependent Claim
29 words
The combination as claimed in claim 6 in which said thin layer is a plurality of thicknesses of magnetic material having a total thickness of less than 50 microns.
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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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |