Patent US3342988A successfully refreshed from Google Patents.
US3342988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horizontally mounted luminaire with lowering device
Assignee: THOMPSON ELECTRIC CO
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Filing: 1965-08-30
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Granted: 1967-09-19
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Expires: 1985-08-30
Abstract
No abstract record available.
Inventors
- 👤 Robert K Farrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:44
CPC Classifications
F; F21; F21V; F21V23/00; F21V23/06; F21V21/00; F21V21/36; F21V21/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
IN A LUMINAIRE LONGER THAN IT IS WIDE AND ADAPTED TO BE MOUNTED TO A MAST ARM IN A GENERALLY HORIZONTAL POSITION WITH ITS LONGER DIMENSION GENERALLY IN LINE WITH SAID MAST ARM; THE COMBINATION OF A FIXED HOOD GENERALLY CONVEX UPWARDLY AND ADAPTED TO BE RIGIDLY ATTACHED TO SAID MAST ARM, A LOWERING FIXTURE GENERALLY CONVEX DOWNWARDLY AND HAVING AN UPPER EDGE MATING WITH THE LOWER EDGE OF SAID HOOD TO FORM A SUBSTANTIALLY CLOSED ENCLOSURE, SAID LOWERING FIXTURE INCLUDING A REFRACTOR, MEANS FOR RAISING AND LOWERING SAID FIXTURE RELATIVE TO SAID HOOD INCLUDING CABLE MEANS ATTACHED TO SAID FIXTURE AT POINTS THEREON BALANCING SAID FIXTURE ON SAID FIXTURE AT POINTS MEANS IN SAID HOOD OVER WHICH SAID CABLE MEANS PASSES, ELECTRIC LAMP MEANS MOUNTED IN SAID LOWERING FIXTURE, ELECTRIC CONTACTS ON SAID FIXTURE ELECTRICALLY CONNECTED WITH SAID LAMP MEANS, MATING ELECTRIC CONTACTS ON SAID HOOD ENGAGEABLE WITH SAID FIRST NAMED CONTACTS WHEN THE EDGES OF SAID FIXTURE AND HOOD SUBSTANTIALLY COACT WHEN SAID FIXTURE IS MOVED TO RAISED POSITION BY SAID CABLE MEANS, MEANS FOR LATCHING SAID FIXTURE IN RAISED POSITION WITH
Claim 2
Dependent Claim
184 words
IN A LUMINAIRE LONGER THAN IT IS WIDE AND ADAPTED TO BE MOUNTED TO A MAST ARM IN A GENERALLY HORIZONTAL POSITION WITH ITS LONGER DIMENSION GENERALLY IN LINE WITH SAID MAST ARM; THE COMBINATION OF A FIXED HOOD GENERALLY CONVEX UPWARDLY AND ADAPTED TO BE RIGIDLY ATTACHED TO SAID MAST ARM, A LOWERING FIXTURE GENERALLY CONVEX DOWNWARDLY AND HAVING AN UPPER EDGE MATING WITH THE LOWER EDGE OF SAID HOOD TO FORM A SUBSTANTIALLY CLOSED ENCLOSURE, SAID LOWERING FIXTURE INCLUDING A REFRACTOR, MEANS FOR RAISING AND LOWERING SAID FIXTURE RELATIVE TO SAID HOOD INCLUDING CABLE MEANS ATTACHED TO SAID FIXTURE AT POINTS THEREON BALANCING SAID FIXTURE ON SAID FIXTURE AT POINTS MEANS IN SAID HOOD OVER WHICH SAID CABLE MEANS PASSES, ELECTRIC LAMP MEANS MOUNTED IN SAID LOWERING FIXTURE, ELECTRIC CONTACTS ON SAID FIXTURE ELECTRICALLY CONNECTED WITH SAID LAMP MEANS, MATING ELECTRIC CONTACTS ON SAID HOOD ENGAGEABLE WITH SAID FIRST NAMED CONTACTS WHEN THE EDGES OF SAID FIXTURE AND HOOD SUBSTANTIALLY COACT WHEN SAID FIXTURE IS MOVED TO RAISED POSITION BY SAID CABLE MEANS, MEANS FOR LATCHING SAID FIXTURE IN RAISED POSITION WITH
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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |