Patent US4580034A successfully refreshed from Google Patents.
US4580034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wiring system for electrically operated devices comprising heating resistances
Assignee: Individual
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Filing: 1983-12-06
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Granted: 1986-04-01
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Expires: 2003-12-06
Abstract
Abstract In the disclosed heater device, a thermostatic control is connected in series with a heating resistance across two power junctions. An incandescent lamp and a glow lamp are connected in series between the junctions while the common point between the lamps is connected to the common point between the switch and the resistance. When the thermostatic switch opens in response to heat it turns on the glow lamp; when it closes it turns on the incandescent lamp.
Inventors
- 👤 Moshe Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:56
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/275
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A heating arrangement comprising: first and second junctions connectable to a power source, a heating resistance having first and second terminals, a thermostatic control switch in series with the second terminal of the resistance, and two optical signals, one being an incandescent lamp and the second a gas filled glow lamp, each having first and second terminals and being arranged and positioned such that one terminal of the incandescent lamp is directly connected to the second terminal of said resistance, a connection from the first terminal of the incandescent lamp to the first terminal of the glow lamp, the second terminal of the incandescent lamp being connected to one of the junctions, a connection from the one of the junctions to the first terminal of the resistance, the second terminal of the glow lamp being connected to the other of said junctions and the other of said junctions being connected to the thermosttic switch, and a supplemental switch in series with said resistance and one of said functions.
Claim 2
Dependent Claim
168 words
A heating arrangement comprising: first and second junctions connectable to a power source, a heating resistance having first and second terminals, a thermostatic control switch in series with the second terminal of the resistance, and two optical signals, one being an incandescent lamp and the second a gas filled glow lamp, each having first and second terminals and being arranged and positioned such that one terminal of the incandescent lamp is directly connected to the second terminal of said resistance, a connection from the first terminal of the incandescent lamp to the first terminal of the glow lamp, the second terminal of the incandescent lamp being connected to one of the junctions, a connection from the one of the junctions to the first terminal of the resistance, the second terminal of the glow lamp being connected to the other of said junctions and the other of said junctions being connected to the thermosttic switch, and a supplemental switch in series with said resistance and one of said functions.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |