US3308338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for automatically replacing an open circuited lamp with a new lamp
Assignee: Individual
•
Filing: 1964-07-06
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Granted: 1967-03-07
•
Expires: 1984-07-06
Abstract
No abstract record available.
Inventors
- 👤 Seidler Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:59
CPC Classifications
F; F21; F21V; F21V19/00; F21V19/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
246 words
A LAMP CHANGING DEVICE FOR REPLACING A BURNED OUT LAMP WITH AN OPERABLE LAMP COMPRISING; A BASE FOR SUPPORTING ALL THE LAMPS AND ASSOCIATED EQUIPMENT; A ROTATABLE LAMP SUPPORT ON THE BASE; A PLURALITY OF FLAT CONDUCTIVE LAMP TERMINALS ON THE SUPPORT FOR HOLDING AN OPERABLE LAMP IN A DESIRED POSITION AND A PLURALITY OF RESERVE LAMPS IN RESERVE POSITIONS; A PLURALITY OF RESILIENT METAL CONDUCTORS, ONE FOR EACH LAMP, ALSO SECURED TO THE SUPPORT FOR HOLDING THE LAMPS IN POSITION AND FOR CONNECTING ONE TERMINAL OF EACH LAMP TO A POWER SUPPLY TERMINAL; A SPIRAL SPRING COUPLED BETWEEN A PORTION OF THE BASE AND SAID ROTATABLE LAMP SUPPORT FOR TURNING AN OPERABLE LAMP INTO POSITION; AN ESCAPEMENT MEANS MOUNTED ON THE BASE AND COUPLED TO SAID ROTATABLE SUPPORT FOR RELEASING THE SUPPORT FOR ROTATION BY SAID SPRING; AN ELECTRICAL TRANSDUCER FOR OPERATING THE ESCAPEMENT MEANS WHEN A CONTROL CURRENT PULSE IS APPLIED THERETO; AND ELECTRICAL CONTACT MEANS MOUNTED ON THE BASE DISPOSED FOR MAKING CONTACT WITH ONE OF THE CONDUCTIVE LAMP TERMINALS FOR LIGHTING THE OPERABLE LAMP WHEN ROTATED INTO THE DESIRED POSITION AND AN ADDITIONAL CONTACT MEANS MOUNTED ON THE ROTATIONAL SUPPORT ADAPTED TO MAKE CONTACT WITH A TERMINAL ON THE BASE ONLY WHEN ALL OF THE LAMPS HAVE BEEN BURNED OUT, SAID TERMINAL ON THE BASE CONNECTED TO SAID ELECTRICAL CONTACT MEANS IN SERIES WITH A RESISTOR FOR MAINTAINING A CURRENT TO PREVENT THE OPERATION OF THE ELECTRICAL TRANSDUCER AND THE ESCAPEMENT MEANS.
Claim 2
Dependent Claim
246 words
A LAMP CHANGING DEVICE FOR REPLACING A BURNED OUT LAMP WITH AN OPERABLE LAMP COMPRISING; A BASE FOR SUPPORTING ALL THE LAMPS AND ASSOCIATED EQUIPMENT; A ROTATABLE LAMP SUPPORT ON THE BASE; A PLURALITY OF FLAT CONDUCTIVE LAMP TERMINALS ON THE SUPPORT FOR HOLDING AN OPERABLE LAMP IN A DESIRED POSITION AND A PLURALITY OF RESERVE LAMPS IN RESERVE POSITIONS; A PLURALITY OF RESILIENT METAL CONDUCTORS, ONE FOR EACH LAMP, ALSO SECURED TO THE SUPPORT FOR HOLDING THE LAMPS IN POSITION AND FOR CONNECTING ONE TERMINAL OF EACH LAMP TO A POWER SUPPLY TERMINAL; A SPIRAL SPRING COUPLED BETWEEN A PORTION OF THE BASE AND SAID ROTATABLE LAMP SUPPORT FOR TURNING AN OPERABLE LAMP INTO POSITION; AN ESCAPEMENT MEANS MOUNTED ON THE BASE AND COUPLED TO SAID ROTATABLE SUPPORT FOR RELEASING THE SUPPORT FOR ROTATION BY SAID SPRING; AN ELECTRICAL TRANSDUCER FOR OPERATING THE ESCAPEMENT MEANS WHEN A CONTROL CURRENT PULSE IS APPLIED THERETO; AND ELECTRICAL CONTACT MEANS MOUNTED ON THE BASE DISPOSED FOR MAKING CONTACT WITH ONE OF THE CONDUCTIVE LAMP TERMINALS FOR LIGHTING THE OPERABLE LAMP WHEN ROTATED INTO THE DESIRED POSITION AND AN ADDITIONAL CONTACT MEANS MOUNTED ON THE ROTATIONAL SUPPORT ADAPTED TO MAKE CONTACT WITH A TERMINAL ON THE BASE ONLY WHEN ALL OF THE LAMPS HAVE BEEN BURNED OUT, SAID TERMINAL ON THE BASE CONNECTED TO SAID ELECTRICAL CONTACT MEANS IN SERIES WITH A RESISTOR FOR MAINTAINING A CURRENT TO PREVENT THE OPERATION OF THE ELECTRICAL TRANSDUCER AND THE ESCAPEMENT MEANS.
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |