US3771086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric coil consisting of a continuous strip-shaped conductor
Assignee: Individual
•
Filing: 1971-09-07
•
Granted: 1973-11-06
•
Expires: 1991-09-07
Abstract
Abstract An electric coil consisting of a continuous flat strip-shaped conductor wound together with one or more layers of an insulating material, adapted to insulate adjacent convolutions from each other and insulate the edges of conductive strip from contact with conductive elements in proximity to the coil.
Inventors
- 👤 P Poulsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:40
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
77 words
In an electric coil consisting of a flat strip-shaped conductor wound together with one or more layers of insulating material and containing two or more sections with taps or terminals, the thickness of the conductor being constant for each section and varying from section to section in accordance with the required cross sectional area in the section said taps or terminals and said conductor being of single unit construction in the sections of larger cross sectional area.
Claim 2
Dependent Claim
77 words
In an electric coil consisting of a flat strip-shaped conductor wound together with one or more layers of insulating material and containing two or more sections with taps or terminals, the thickness of the conductor being constant for each section and varying from section to section in accordance with the required cross sectional area in the section said taps or terminals and said conductor being of single unit construction in the sections of larger cross sectional area.
Claim 3
Dependent Claim
53 words
An electric coil in accordance with claim 1, said conductor having cut and outwardly bent parts along the edges thereof adapted to form taps and terminals, each part of the conductor in which a tap or terminal is formed being thicker than the adjacent conductor at least at one side of said part.
Claim 4
Dependent Claim
42 words
An electric coil in accordance with claim 1, said conductor having cut out and outwardly bent parts adapted to form taps and terminals, each paRt of the conductor in which a tap or terminal is formed being thicker than the adjacent conductor.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |