US3596038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power supply and automatic control system for gap discharge apparatus and the like
Assignee: Individual
•
Filing: 1969-06-23
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Granted: 1971-07-27
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Expires: 1989-06-23
Abstract
Abstract We disclose a power supply for gap discharge apparatus and the like, said supply comprising energy storing means including a capacitor, circuit means for connecting said capacitor across an electrode tool and workpiece of said apparatus to form a discharge circuit for the capacitor, a rectifying circuit having its output connected across said capacitor to form a charging circuit for the capacitor, transformer means having core structure of the leakage leg type and having primary and secondary windings thereon spaced from said leakage leg, circuit means for connecting the secondary output of said transformer means to the input of said rectifying circuit and for connecting the primary of said transformer means to a source of fluctuating potential.
Inventors
- 👤 Terry O Hockenberry
- 👤 Everard M Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:51
CPC Classifications
B; B23; B23H; B23H1/00; B23H1/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
160 words
Gap discharge apparatus comprising a power supply an electrode tool, and means for spacedly mounting said tool and a workpiece to form a discharge gap therebetween, said supply comprising energy storing means including capacitance means, circuit means for connecting said capacitance means across said electrode tool and said workpiece to form a discharge circuit including said discharge gap for said capacitance means, a rectifying circuit having its output connected across said capacitance means to form a charging circuit for said capacitance means, transformer means having core structure of the leakage leg type and having primary and secondary winding means thereon spaced from said leakage leg, circuit means for connecting the primary of said transformer means to a source of fluctuating potential and for connecting the secondary output of said transformer means to the input of said rectifying circuit so that charging voltage applied to said capacitance means is regulated by said leakage for more uniform charging of said capacitance means.
Claim 2
Dependent Claim
160 words
Gap discharge apparatus comprising a power supply an electrode tool, and means for spacedly mounting said tool and a workpiece to form a discharge gap therebetween, said supply comprising energy storing means including capacitance means, circuit means for connecting said capacitance means across said electrode tool and said workpiece to form a discharge circuit including said discharge gap for said capacitance means, a rectifying circuit having its output connected across said capacitance means to form a charging circuit for said capacitance means, transformer means having core structure of the leakage leg type and having primary and secondary winding means thereon spaced from said leakage leg, circuit means for connecting the primary of said transformer means to a source of fluctuating potential and for connecting the secondary output of said transformer means to the input of said rectifying circuit so that charging voltage applied to said capacitance means is regulated by said leakage for more uniform charging of said capacitance means.
Claim 3
Dependent Claim
76 words
The combination according to claim 1 wherein said capacitance means include a bank of capacitors connected in series to respective contacts of capacitor bank switching means, such switching means and said capacitor banks being connected in series across said tool and workpiece and across the output terminals of said rectifying circuit, and said secondary winding means include a tapped secondary winding connected in series with a tap switch to the input terminals of said rectifying circuit.
Claim 4
Dependent Claim
78 words
The combination according to claim 1 wherein circuit means are provided for adjusting the regulating characteristic of said transformer means, said adjusting circuit means including a tapped winding on the leakage leg of said transformer core structure, said tapped winding being connected in series with a tap switch to capacitance means and inductance means, said inductance means and said capacitance means being connected in electrical series with a selector switch to said tap switch and said tapped winding.
Claim 5
Dependent Claim
74 words
The combination according to claim 1 wherein said transformer means include a plurality of polyphasally connected transformers, each of said transformers including a core structure having primary and secondary windings thereon and a leakage leg spaced therefrom, said rectifying circuit includes a polyphasal rectifying network, and circuit means are provided for connecting said primary windings to a source of polyphasal potential and for connecting said secondary windings to the input of said rectifying network.
Claim 6
Dependent Claim
66 words
The combination according to claim 4 wherein a tapped winding is provided on the leakage leg of each transformer core structure, said windings having their taps connected together in electrical parallel and in electrical series with contacts respectively of a tap switch, and inductance means and additional capacitance means are connected in series with contacts of a selector switch to said tapped windings and tap switch.
Claim 7
Dependent Claim
76 words
The combination according to claim 5 wherein said first-mentioned capacitance means including a bank of capacitors connected in parallel series with a selector switch therefor acrosS said electrode tool and workpiece and across the output of said first rectifying circuit, each of said transformer secondary windings including tapped portions connected to respective contacts of a tap switch therefor to the input of said first rectifying circuit, and means for actuating said secondary winding tap switches simultaneously.
Claim 8
Dependent Claim
50 words
The combination according to claim 1 wherein said capacitance means include a bank of capacitors connected in series to respective contacts of capacitor bank-switching means, such switching means and said capacitor bank being connected in series across said tool and workpiece and across the output terminals of said rectifying circuit.
Claim 9
Dependent Claim
47 words
The combination according to claim 1 wherein means are provided for adjusting the regulating characteristic of said transformer means, said adjusting means including a magnetic slug insertable into a gap associated with said leakage leg, and means for inserting and withdrawing said slug relative to said gap.
Claim 10
Dependent Claim
40 words
The combination according to claim 1 wherein circuit means are provided for adjusting the regulating characteristic of said transformer means, said adjusting circuit means including means for varying the flux impedance of an air gap associated with said leakage leg.
Claim 11
Dependent Claim
70 words
The combination according to claim 1 wherein said capacitance means include a bank of capacitors connected in series to respective contacts of capacitor bank switching means, such switching means and said capacitor banks being connected in series across said tool and workpiece and across the output terminals of said rectifying circuit, said primary winding means include a tapped primary winding connected in series with a tap switch to said source.
Claim 12
Dependent Claim
39 words
The combination according to claim 1 wherein circuit means are provided for adjusting the regulating characteristic of said transformer means, said adjusting circuit means including a winding on said leakage leg and means for varying a potential applied thereto.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |