Patent US3693050A successfully refreshed from Google Patents.
US3693050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single module power supply
Assignee: ELECTRIC REGULATOR CORP
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Filing: 1971-01-21
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Granted: 1972-09-19
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Expires: 1991-01-21
Abstract
Abstract A power supply unit for converting an alternating current input to a controlled direct current output, comprises a rectifier module having a plurality of rectifiers serially arranged in substantial alignment with appropriate electrically conductive spacers therebetween. Heat dissipating fins or plates are interleaved between the rectifiers and spacers and serve as electrically and thermally conductive means. A pair of electrically conductive jumper plates are provided operatively connecting selected terminals of said rectifiers to complete the operative circuit. The module is slidably mounted in a housing having a relatively massive bus bar network secured on an insulating member disposed on the back wall of said housing by novel fastening means. Said fastening means includes a screw extending from the back wall of the housing through apertures in said insulating member and an insulative nut member adapted to engage said screw and to seal said aperture to prevent any arcing or leakage from the bus bar network to the housing. The external leads extend through an aperture in the back wall of the housing and may be conveniently connected to the appropriate module terminals, there being considerable space between the back wall and the module for this purpose.
Inventors
- 👤 James P Ettinger
- 👤 Christian S Otteson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:01
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/26; H02B1/46; H02B1/48
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
195 words
In a structure for housing high power electrical circuitry wherein electrically conductive means are mounted on one side of an insulating member, and wherein a fastening means secures said insulating member to a support in spaced relation therefrom, said insulating member having an aperture receiving one end of said fastening means therethrough with substantial clearance therearound, the improvement comprising a cover means of insulating material having an open ended hollow therein adapted to receive and retain said one end of said fastening means, said cover means having a given cross-section at its closed end and a reduced cross-section at its open end with a shoulder means therebetween, said reduced cross-sectional portion extending through said clearance anD said shoulder means sealingly engaging said one side of insulating member, and insulating spacer means between said insulating member and said housing struc-ture, said reduced cross-sectional portion of said cover means sealingly engaging said spacer means, whereby said fastening means and thus said housing structure is completely sealed from said bus bar network mounted on said one side of said insulating member thereby to prevent electrical arcing from said electrically conductive means to said fastening means and said support.
Claim 2
Dependent Claim
195 words
In a structure for housing high power electrical circuitry wherein electrically conductive means are mounted on one side of an insulating member, and wherein a fastening means secures said insulating member to a support in spaced relation therefrom, said insulating member having an aperture receiving one end of said fastening means therethrough with substantial clearance therearound, the improvement comprising a cover means of insulating material having an open ended hollow therein adapted to receive and retain said one end of said fastening means, said cover means having a given cross-section at its closed end and a reduced cross-section at its open end with a shoulder means therebetween, said reduced cross-sectional portion extending through said clearance anD said shoulder means sealingly engaging said one side of insulating member, and insulating spacer means between said insulating member and said housing struc-ture, said reduced cross-sectional portion of said cover means sealingly engaging said spacer means, whereby said fastening means and thus said housing structure is completely sealed from said bus bar network mounted on said one side of said insulating member thereby to prevent electrical arcing from said electrically conductive means to said fastening means and said support.
Claim 3
Dependent Claim
32 words
The apparatus of claim 1, wherein said fastening means is an externally threaded stud and wherein said hollow in said cover means is internally threaded and adapted to threadingly engage said stud.
Claim 4
Dependent Claim
33 words
The apparatus of claim 1, wherein said spacer means is an annular washer of insulating material surrounding said fastening means and sealingly engaging said support and the other side of said insulating member.
Claim 5
Dependent Claim
32 words
The apparatus of claim 2, wherein said spacer means is an annular washer of insulating material surrounding said stud, and sealingly engaging said support and the other side of said insulating member.
Claim 6
Dependent Claim
25 words
The apparatus of claim 3, wherein said reduced cross-sectional portion of said cover means is received within said annular washer in tight sealing engagement therewith.
Claim 7
Dependent Claim
25 words
The apparatus of claim 4, wherein said reduced cross-sectional portion of said cover means is received within said annular washer in tight sealing engagement therewith.
Claim 8
Dependent Claim
64 words
The apparatus of claim 5, wherein the outer diameter of said reduced cross-sectional portion of said cover means is greater than the internal diameter of said annular washer and wherein at least one of said outer surface of said reduced cross-sectional portion and the inner surface of said annular washer is tapered to facilitate insertion of said reduced cross-sectional portion into said annular washer.
Claim 9
Dependent Claim
64 words
The apparatus of claim 6, wherein the outer diameter of said reduced cross-sectional portion of said cover means is greater than the internal diameter of said annular washer and wherein at least one of said outer surface of said reduced cross-sectional portion and the inner surface of said annular washer is tapered to facilitate insertion of said reduced cross-sectional portion into said annular washer.
References Cited (Backward Citations)
US2984698A
Cited
US3309577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |