US3668482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
An offset, wound, single-web roll capacitor and process for making same
Assignee: EIDP Inc
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Filing: 1971-02-09
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Granted: 1972-06-06
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Expires: 1991-02-09
Abstract
Abstract An electrical capacitor comprising a single web of a metallized dielectric convolutely wound and having a metal coating on the terminal ends with an electrical connector attached to the metal coating, wherein the terminal connection between the metallized portion of the capacitor serving as an electrode and the metal coatings on the terminal ends is improved by offsetting the exposed edge portions of the layers formed by the convolutely wound web at the terminal ends with respect to each other.
Inventors
- 👤 David Johnstone Chalmers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:49
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/32; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
16 words
The electrical capacitor of claim 1 in which the offset exposed edge portions are irregularly staggered.
Claim 2
Dependent Claim
34 words
The electrical capacitor of claim 1 in which the offset exposed edge portions are regularly staggered in the shape of a truncated cone protruding on one end and an inverted cone on the other.
Claim 3
Dependent Claim
48 words
The electrical capacitor of claim 1 wherein the capacitor is about 1/2 to 3 inches long with enough windings to have a capacitance of about 0.5 to 1.0 microfarad and the improvement wherein the exposed edges are offset about 1 to 2 mils with respect to each other.
Claim 4
Dependent Claim
49 words
In a process of preparing an electrical capacitor by convolutely winding a metallized dielectric, coating the terminal ends with metal, and attaching an electrical connector to the metal coating forming a terminal, the improvement of continuously offsetting one layer with respect to the other as the convolutions are made.
Claim 5
Dependent Claim
25 words
The process of preparing an electrical capacitor according to claim 4 in which the offsetting convoluted layers are irregularly staggered with respect to each other.
Claim 6
Dependent Claim
39 words
The process of preparing an electrical capacitor according to claim 4 in which the offsetting convoluted layers are regularly staggered in the general shape of a truncated cone protruding at one end and an inverted cone on the other.
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |