Patent US3723846A successfully refreshed from Google Patents.
US3723846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High voltage power supply
Assignee: Radiation Dynamics Inc
•
Filing: 1972-03-15
•
Granted: 1973-03-27
•
Expires: 1992-03-15
Abstract
Abstract A power supply for high voltage accelerators employs a plurality of elongated cylindrical capacitors, disposed circumferentially about a plurality of centrally located solid state rectifiers. The plates of each capacitor comprise inner and outer coaxial sleeves located in a gaseous atmosphere with A.C. applied to the inner sleeves to provide large effective spacing between the A.C. driven sleeves of the capacitors, the inner sleeves being shielded from one another by the outer sleeves. Solid state rectifiers require lower driving frequencies than are normal in such supplies. Output voltage loss resulting from use of lower frequencies is compensated by the large capacitance achieved and the use of a lesser number of rectifier stages. Peak inverse voltage limitations of the rectifiers are met by cascading rectifiers per stage, the large central space provided by the capacitor structure providing the space necessary for cascading.
Inventors
- 👤 Ch Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:44
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/06; H02M7/10; H02M7/103; H02M7/106; H01; H01G; H01G4/00; H01G4/38
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
71 words
A capacitor structure for a power supply comprising a plurality of elongated conductive cylinders, a plurality of groups of hollow conductive sleeves, each said group of sleeves being associated with a different one of said cylinders, the sleeves of each said group being coaxial with its associated cylinder and spaced along the axis thereof at distances from each other such as to prevent voltage breakdown between adjacent ones of said sleeves.
Claim 2
Dependent Claim
71 words
A capacitor structure for a power supply comprising a plurality of elongated conductive cylinders, a plurality of groups of hollow conductive sleeves, each said group of sleeves being associated with a different one of said cylinders, the sleeves of each said group being coaxial with its associated cylinder and spaced along the axis thereof at distances from each other such as to prevent voltage breakdown between adjacent ones of said sleeves.
Claim 3
Dependent Claim
11 words
The invention according to claim 1 wherein said cylinders are hollow.
Claim 4
Dependent Claim
15 words
The invention according to claim 1 wherein said cylinders are generally parallel to one another.
Claim 5
Dependent Claim
14 words
The invention according to claim 1 wherein The ends of said sleeves are rounded.
Claim 6
Dependent Claim
26 words
The invention according to claim 2 wherein there are four of said cylinders, said cylinders being arrayed at the four corners of a generally square configuration.
Claim 7
Dependent Claim
25 words
The invention according to claim 2 wherein there are three of said cylinders, said cylinders being arrayed at the corners of a generally equilateral triangle.
Claim 8
Dependent Claim
97 words
A power supply comprising: a plurality of elongated conductive cylinders, a plurality of groups of hollow conductive sleeves, each said group of sleeves being associated with a different one of said cylinders, the sleeves of each said group being coaxial with its associated cylinder and spaced along the axis thereof at distances from each other such as to prevent voltage breakdown between adjacent ones of said sleeves, means for applying opposite polarities of an alternating voltage to various of said cylinders, and rectifiers connected between sleeves of said cylinders having opposite polarities of the A.C. applied thereto.
Claim 9
Dependent Claim
97 words
A power supply comprising: a plurality of elongated conductive cylinders, a plurality of groups of hollow conductive sleeves, each said group of sleeves being associated with a different one of said cylinders, the sleeves of each said group being coaxial with its associated cylinder and spaced along the axis thereof at distances from each other such as to prevent voltage breakdown between adjacent ones of said sleeves, means for applying opposite polarities of an alternating voltage to various of said cylinders, and rectifiers connected between sleeves of said cylinders having opposite polarities of the A.C. applied thereto.
Claim 10
Dependent Claim
39 words
The invention according to claim 7 wherein said cylinders are generally parallel to one another and are spaced from one another such as to define a central space therebetween and means for supporting said rectifiers in said central space.
Claim 11
Dependent Claim
18 words
The invention according to claim 8 wherein said rectifiers are located remote from the spaces between said sleeves.
Claim 12
Dependent Claim
50 words
The invention according to claim 7 wherein said rectifiers are solid state devices, said means for applying comprises a source of alternating voltage having a frequency approximately equal to a maximum of 10Kh, and wherein said rectifiers comprise a plurality of rectifiers connected between each of two of said sleeves.
References Cited (Backward Citations)
US2530995A
Cited
US3007121A
Cited
US3225258A
Cited
US3246230A
Cited
US3320513A
Cited
US3589003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |