Patent US3793569A successfully refreshed from Google Patents.
US3793569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll capacitor having a hollow pin
Assignee: US Philips Corp
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Filing: 1972-11-29
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Granted: 1974-02-19
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Expires: 1992-11-29
Abstract
Abstract A roll capacitor having a cylindrical metal housing in which a pin is provided which is connected to the housing and through which at least one electrical connection wire is passed which is enveloped by an insulating jacket. In the hollow pin at least one circumferential ridge is provided for sealing the capacitor.
Inventors
- 👤 A Maijers
- 👤 P Beekenkamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:03
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/224
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
128 words
A roll capacitor comprising a cylindrical housing having a central hollow pin which extends parallel to the longitudinal axis of the housing and which is connected to the housing through a circular bottom portion which is transverse to the longitudinal axis, a capacitor roll arranged within the housing enveloping said pin and provided with at least one electrical connection fed out of the roll capacitor through the hollow pin, the cylindrical housing, the hollow pin and the circular bottom portion being made of metal, the electrical connection at least partly enveloped by an elastic insulating jacket is anchored in the hollow pin by means of one or more circumferential ridges which are provided in the pin and which provide sealing means for the capacitor roll from the outside.
Claim 2
Dependent Claim
128 words
A roll capacitor comprising a cylindrical housing having a central hollow pin which extends parallel to the longitudinal axis of the housing and which is connected to the housing through a circular bottom portion which is transverse to the longitudinal axis, a capacitor roll arranged within the housing enveloping said pin and provided with at least one electrical connection fed out of the roll capacitor through the hollow pin, the cylindrical housing, the hollow pin and the circular bottom portion being made of metal, the electrical connection at least partly enveloped by an elastic insulating jacket is anchored in the hollow pin by means of one or more circumferential ridges which are provided in the pin and which provide sealing means for the capacitor roll from the outside.
Claim 3
Dependent Claim
38 words
A roll capacitor as claimed in claim 1, wherein the hollow pin, the circular bottom portion and the housing form an integral unit, the assembly thus formed being closed on at least one side by a circular plate.
Claim 4
Dependent Claim
39 words
A roll capacitor as claimed in claim 1, wherein the hollow pin and the circular bottom portion form one integral unit, the housing consisting of a unilaterally open can which is connected to the bottom portion along its circumference.
Claim 5
Dependent Claim
30 words
A roll capacitor as claimed in claim 2 wherein the electrical connection which is anchored in the hollow pin is an electrically conductive wire which is covered with insulating material.
Claim 6
Dependent Claim
49 words
A roll capacitor as claimed in claim 4 wherein the end of the electrical connection which is situated inside the capacitor is connected to a connection lug which projects from the capacitor roll and which is pressed, together with the connection lug, onto the near side of the roll.
Claim 7
Dependent Claim
70 words
A roll capacitor as claimed in claim 1, characterized in that the capacitor roll is formed by a formed aluminium anode foil layer, a paper foil layer which is impregnated with a commonly used electrolyte, an aluminIum cathode foil layer, and a second impregnated paper foil layer which are successively wound about the hollow pin, the cylindrical housing, the hollow pin and the circular bottom portion being made of aluminium.
Claim 8
Dependent Claim
30 words
A roll capacitor as claimed in claim 3 wherein the electrical connection which is anchored in the hollow pin is an electrically conductive wire which is covered with insulating material.
Claim 9
Dependent Claim
49 words
A roll capacitor as claimed in claim 7, wherein the end of the electrical connection which is situated inside the capacitor is connected to a connection lug which projects from the capacitor roll and which is pressed, together with the connection lug, onto the near side of the roll.
References Cited (Backward Citations)
US2091591A
Cited
US3389311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |