US3739186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ac/dc supply circuit for an appliance
Assignee: POLAR WARE CORP
•
Filing: 1970-03-17
•
Granted: 1973-06-12
•
Expires: 1990-03-17
Abstract
Abstract Both alternating and direct potentials are provided from either an alternating or a direct supply to control a low voltage, direct current operated solenoid valve of a burner and a high, alternating voltage operated igniter for the burner. A burner electrical supply circuit for connection to either type of electrical supply employs a transformer commonly associated and selectively connectable with a converter and an inverter respectively for step-down and step-up operation.
Inventors
- 👤 P Gokey
- 👤 F Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:10
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/26; F23N5/265
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
104 words
An electrical supply circuit for supplying a load which requires both alternating and direct current inputs for operation, comprising: a single pair of input terminals for connection to an electrical supply; first and second output terminals for supplying alternating and direct current outputs to a load; a converter for supplying a dc output; an inverter for supplying an ac output; a transformer associated with both said converter and said inverter; and means for selectively connecting said transformer and said input and output terminals in circuit with said converter and said inverter in accordance with the alternating or direct current characteristic of the electrical supply.
Claim 2
Dependent Claim
104 words
An electrical supply circuit for supplying a load which requires both alternating and direct current inputs for operation, comprising: a single pair of input terminals for connection to an electrical supply; first and second output terminals for supplying alternating and direct current outputs to a load; a converter for supplying a dc output; an inverter for supplying an ac output; a transformer associated with both said converter and said inverter; and means for selectively connecting said transformer and said input and output terminals in circuit with said converter and said inverter in accordance with the alternating or direct current characteristic of the electrical supply.
Claim 3
Dependent Claim
136 words
A circuit for providing direct and alternating potentials from either an alternating current supply or a direct current supply, comprising: a transformer having a first winding and a second winding; rectifier means; transistor means; a single pair of input terminals for connection to an electrical supply; and connection means for configuring said circuit in two circuit arrangements, a first circuit arrangement to establish connections between said input terminals and said first winding and between said second winding and said rectifier means whereby said rectifier means provides a low voltage direct current output to a load, and a second circuit arrangement to establish connections between said input terminals and said transistor means and between said transistor means and said second winding to provide an oscillator whereby said first winding provides an alternating current output to a load.
Claim 4
Dependent Claim
136 words
A circuit for providing direct and alternating potentials from either an alternating current supply or a direct current supply, comprising: a transformer having a first winding and a second winding; rectifier means; transistor means; a single pair of input terminals for connection to an electrical supply; and connection means for configuring said circuit in two circuit arrangements, a first circuit arrangement to establish connections between said input terminals and said first winding and between said second winding and said rectifier means whereby said rectifier means provides a low voltage direct current output to a load, and a second circuit arrangement to establish connections between said input terminals and said transistor means and between said transistor means and said second winding to provide an oscillator whereby said first winding provides an alternating current output to a load.
Claim 5
Dependent Claim
72 words
The circuit according to claim 2, wherein said second winding includes a tap and said transistor means includes a transistor having a first electrode connected to said tap, and a second transistor having a second electrode connected in circuit with said first electrode via said second winding and the tap thereof, a third electrode connected to ground, and a fourth electrode connectable to one of said input terminals via said connection means.
Claim 6
Dependent Claim
39 words
The circuit according to claim 2, wherein said first winding has a greater number of turns that said second winding to provide step-down transformer action for said first circuit arrangement and step-up transformer action for said second circuit arrangement.
Claim 7
Dependent Claim
14 words
The circuit according to claim 2, comprising capacitive means connected across said first winding.
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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |