Patent US2863556A successfully refreshed from Google Patents.
Patent US4618809A successfully refreshed from Google Patents.
US4618809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for converting single-phase power to three-phase outputs
Assignee: Tokai TRW and Co Ltd
•
Filing: 1985-06-07
•
Granted: 1986-10-21
•
Expires: 2005-06-07
Abstract
Abstract An inverter apparatus for converting a single-phase A.C. power source to three-phase A.C. outputs is described wherein the single-phase power source is directly connected to a first phase load and is connected through a one-phase converter to a second phase load, and the single-phase power source and the one-phase converted single-phase power source are connected to a third phase load and a fourth phase load, the third and fourth phase loads being formed by dividing a single load, so that three-phase power outputs are provided for the first phase load, the second phase load, and the third plus fourth loads.
Inventors
- 👤 Naoyuki Maeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:50
CPC Classifications
H; H02; H02M; H02M5/00; H02M5/40; H02M5/42; H02M5/44; H02M5/453; H02M5/458; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/53; H02M7/537; H02M7/5387
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
105 words
An inverter apparatus for converting a single-phase A.C. power source to three-phase A.C. outputs, characterized in that the single-phase power source is directly connected to first phase load means and is connected through one-phase converter means to second phase load means, and the single-phase power source and the one-phase converted single-phase power source are connected to third phase load means and fourth phase load means, the third and fourth phase load means being formed by dividing single load means, so that three-phase power outputs are provided for the first phase load means, the second phase load means, and the third plus fourth phase load means.
Claim 2
Dependent Claim
105 words
An inverter apparatus for converting a single-phase A.C. power source to three-phase A.C. outputs, characterized in that the single-phase power source is directly connected to first phase load means and is connected through one-phase converter means to second phase load means, and the single-phase power source and the one-phase converted single-phase power source are connected to third phase load means and fourth phase load means, the third and fourth phase load means being formed by dividing single load means, so that three-phase power outputs are provided for the first phase load means, the second phase load means, and the third plus fourth phase load means.
Claim 3
Dependent Claim
23 words
The inverter apparatus as set forth in claim 1 characterized in that said single-phase A.C. power source is a home wiring power source.
Claim 4
Dependent Claim
30 words
The inverter apparatus as set forth in claim 1 or 2 characterized in that said first through fourth phase load means are the load windings of a three-phase induction motor.
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) | 1989-10-20 | 1990-04-21 | 1990-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-20 | 1994-04-21 | 1994-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-20 | 1998-04-21 | 1998-10-21 | $7700.00 | Window Closed / Lapsed |