Patent US4334172A successfully refreshed from Google Patents.
US4334172A
Expired / Lapsed
US
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Adaptor for high intensity arc discharge lamps
Assignee: Osram Sylvania Inc
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Filing: 1980-09-22
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Granted: 1982-06-08
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Expires: 2000-09-22
Abstract
Abstract An adaptor for use with incandescent lamp sockets includes a circuit for igniting a high intensity arc discharge lamp and limiting the current flow thereto. The adaptor includes means for connecting to a source of electrical power and means for connecting to an incandescent lamp socket.
Inventors
- 👤 Elliott F. Wyner
- 👤 Orville R. Burr
- 👤 Robert L. Garrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:13
CPC Classifications
H; H05; H05B; H05B41/00; H01; H01R; H01R31/00; H01R31/06; H01R31/065; H05B41/02; H05B41/04; H05B41/042; Y; Y10; Y10S; Y10S315/00; Y10S315/07
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
146 words
An adaptor for operation of a high intensity arc discharge lamp comprising: a first and second wire for connecting the adaptor to an AC power source; the combination of a first resistor in series with a first capacitor, electrically connected between the first and second wires; a series circuit of an inductor, a second resistor and a second capacitor, electrically connected in parallel with said combination; a trigger winding on the inductor, one end of which is connected to a point between said first resistor and said first capacitor, the other end of which is connected to one end of a triac, the other end of the triac being connected to said second wire; the gate of the triac being connected to one side of a diac, the other side of the diac being connected to a point between said second resistor and said second capacitor.
Claim 2
Dependent Claim
146 words
An adaptor for operation of a high intensity arc discharge lamp comprising: a first and second wire for connecting the adaptor to an AC power source; the combination of a first resistor in series with a first capacitor, electrically connected between the first and second wires; a series circuit of an inductor, a second resistor and a second capacitor, electrically connected in parallel with said combination; a trigger winding on the inductor, one end of which is connected to a point between said first resistor and said first capacitor, the other end of which is connected to one end of a triac, the other end of the triac being connected to said second wire; the gate of the triac being connected to one side of a diac, the other side of the diac being connected to a point between said second resistor and said second capacitor.
Claim 3
Dependent Claim
25 words
The adaptor of claim 1 including means for connecting a high intensity arc discharge lamp in parallel with said second resistor and said second capacitor.
References Cited (Backward Citations)
US3466500A
Cited
JPS5246686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-07 | 1985-12-07 | 1986-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-07 | 1989-12-07 | 1990-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-07 | 1993-12-07 | 1994-06-08 | $7700.00 | Window Closed / Lapsed |