Patent US3629651A successfully refreshed from Google Patents.
US3629651A
Expired / Lapsed
US
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Pulse-generating apparatus
Assignee: Bendix Corp
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Filing: 1969-09-25
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Granted: 1971-12-21
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Expires: 1989-09-25
Abstract
Abstract A condenser discharge-type electrical pulse-generating circuit, such as for a combustion engine ignition system, wherein two storage capacitors are charged in parallel and partially discharged in series through two control gaps and the primary winding of a high-frequency transformer, the secondary winding of which is connected in series with a high-voltage igniter gap and one of the condensers through one of said control gaps.
Inventors
- 👤 Irving E Linkroum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:40
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/53; H03K3/537
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
196 words
Electrical apparatus having a source of electrical energy, a multisection storage condenser means connected to said source so as to be incrementally charged thereby with the sections of the condenser means connected in parallel, a load circuit connected to be energized by the discharge of the storage condenser means, a first control gap interposed between one section of the storage condenser means and the load circuit, a second control gap having a breakdown potential greater than that of the first control gap and less than the sum of the voltages of the charges attainable by the parallel connected sections of the storage condenser means, first circuit means connecting the first gap to the storage condenser means so thaT the first gap is ionized and rendered conductive when the charge on the parallel connected sections of the storage condenser means reaches a predetermined voltage, and second circuit means for thereupon connecting said sections of the storage condenser means in series, voltage-adding relation and subjecting said gaps to the full voltage of the series connected storage condenser sections so as to ionize the second control gap and render it conductive to the discharge of the storage condenser means.
Claim 2
Dependent Claim
196 words
Electrical apparatus having a source of electrical energy, a multisection storage condenser means connected to said source so as to be incrementally charged thereby with the sections of the condenser means connected in parallel, a load circuit connected to be energized by the discharge of the storage condenser means, a first control gap interposed between one section of the storage condenser means and the load circuit, a second control gap having a breakdown potential greater than that of the first control gap and less than the sum of the voltages of the charges attainable by the parallel connected sections of the storage condenser means, first circuit means connecting the first gap to the storage condenser means so thaT the first gap is ionized and rendered conductive when the charge on the parallel connected sections of the storage condenser means reaches a predetermined voltage, and second circuit means for thereupon connecting said sections of the storage condenser means in series, voltage-adding relation and subjecting said gaps to the full voltage of the series connected storage condenser sections so as to ionize the second control gap and render it conductive to the discharge of the storage condenser means.
Claim 3
Dependent Claim
41 words
Electrical apparatus according to claim 1, wherein the storage condenser means has two sections, and said second circuit means includes the second gap interposed between the junction between said sections and a common conductor to which the load circuit is connected.
Claim 4
Dependent Claim
23 words
Electrical apparatus according to claim 1, wherein another section of the storage condenser means is connected in shunt with the first control gap.
Claim 5
Dependent Claim
31 words
Electrical apparatus according to claim 3, wherein said last-named section of the storage condenser means has a capacity which is but a small fraction of that of said one condenser section.
Claim 6
Dependent Claim
15 words
Electrical apparatus according to claim 1, wherein the load circuit includes an ignition spark gap.
Claim 7
Dependent Claim
35 words
Electrical apparatus according to claim 1, wherein the load circuit includes a transformer winding, the first gap has entering and discharge electrodes, and the discharge electrode is connected to the said winding of the transformer.
Claim 8
Dependent Claim
32 words
Electrical apparatus according to claim 1, comprising a transformer having primary and secondary windings, and wherein the discharge electrode of the first gap is connected to one terminal of the secondary winding.
Claim 9
Dependent Claim
36 words
Electrical apparatus according to claim 7, comprising an ignition spark gap having one electrode connected to the other terminal of the secondary winding, and wherein the second gap has an electrode connected to the primary winding.
Claim 10
Dependent Claim
114 words
Electrical pulse-generating apparatus comprising a source of electrical energy, first and second condenser means connected in parallel across said source to be simultaneously charged thereby, a condenser discharge circuit connected across said second condenser means and comprising normally open circuit-closing means responsive to a predetermined charge on said second condenser means for closing said circuit, and a second condenser discharge circuit comprising other normally open circuit-closing means and said first and second condenser means connected in series across said first-named circuit-closing means, said other circuit-closing means being responsive to the sum of the charges on said first and second condenser means to close said second discharge circuit while said first-named circuit-closing means is operative.
Claim 11
Dependent Claim
114 words
Electrical pulse-generating apparatus comprising a source of electrical energy, first and second condenser means connected in parallel across said source to be simultaneously charged thereby, a condenser discharge circuit connected across said second condenser means and comprising normally open circuit-closing means responsive to a predetermined charge on said second condenser means for closing said circuit, and a second condenser discharge circuit comprising other normally open circuit-closing means and said first and second condenser means connected in series across said first-named circuit-closing means, said other circuit-closing means being responsive to the sum of the charges on said first and second condenser means to close said second discharge circuit while said first-named circuit-closing means is operative.
Claim 12
Dependent Claim
109 words
Electrical pulse-generating apparatus comprising a source of electrical energy, first and second condensers connected to be charged in parallel by said source, a first spark gap connected between the positive polarity terminal of one of said condensers and the negative polarity terminal of the other of said condensers, a second spark gap connected between the other terminals of said condensers, and condenser discharge circuit means including said second spark gap connected across and adapted to be rendered conductive by the charge on said second condenser, whereby said condensers and said second spark gap become connected in series across said first spark gap while the second spark gap is conductive.
Claim 13
Dependent Claim
109 words
Electrical pulse-generating apparatus comprising a source of electrical energy, first and second condensers connected to be charged in parallel by said source, a first spark gap connected between the positive polarity terminal of one of said condensers and the negative polarity terminal of the other of said condensers, a second spark gap connected between the other terminals of said condensers, and condenser discharge circuit means including said second spark gap connected across and adapted to be rendered conductive by the charge on said second condenser, whereby said condensers and said second spark gap become connected in series across said first spark gap while the second spark gap is conductive.
Claim 14
Dependent Claim
95 words
Electrical pulse-generating apparatus comprising a source of electrical energy, first and second storage condensers connected in parallel across said source to be simultaneously charged thereby, a first discharge circuit comprising said first condenser and a first spark gap adapted to be rendered conductive by a predetermined charge on said first condenser, and a second discharge circuit comprising said first gap and said first and second condensers connected in series across a second spark gap having a spark-over voltage less than the sum of the charges on said condensers when said first gap is rendered conductive.
Claim 15
Dependent Claim
95 words
Electrical pulse-generating apparatus comprising a source of electrical energy, first and second storage condensers connected in parallel across said source to be simultaneously charged thereby, a first discharge circuit comprising said first condenser and a first spark gap adapted to be rendered conductive by a predetermined charge on said first condenser, and a second discharge circuit comprising said first gap and said first and second condensers connected in series across a second spark gap having a spark-over voltage less than the sum of the charges on said condensers when said first gap is rendered conductive.
Claim 16
Dependent Claim
108 words
Electrical pulse-generating apparatus comprising a source of electrical energy, first and second storage condensers connected in parallel across said source to be simultaneously charged thereby, first and second normally conductive spark gaps, a first discharge circuit comprising said condensers and said spark gaps connected in series, and a second discharge circuit comprising said second condenser in series with said second spark gap, the latter being adapted to be rendered conductive when said second condenser attains a predetermined charge, and said first spark gap being adapted to be rendered conductive in response to the sum of the charges on said condensers when said second spark gap is rendered conductive.
Claim 17
Dependent Claim
108 words
Electrical pulse-generating apparatus comprising a source of electrical energy, first and second storage condensers connected in parallel across said source to be simultaneously charged thereby, first and second normally conductive spark gaps, a first discharge circuit comprising said condensers and said spark gaps connected in series, and a second discharge circuit comprising said second condenser in series with said second spark gap, the latter being adapted to be rendered conductive when said second condenser attains a predetermined charge, and said first spark gap being adapted to be rendered conductive in response to the sum of the charges on said condensers when said second spark gap is rendered conductive.
Claim 18
Dependent Claim
59 words
Apparatus as defined in claim 12 comprising a transformer having primary and secondary windings, said primary winding being series connected in said first discharge circuit, a third spark gap connected across said secondary winding, and a third discharge circuit comprising said second spark gap, said secondary winding and said third spark gap connected in series across said first condenser.
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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |