US3219303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equipoised lamp
Assignee: Jac Jacobsen AS
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Filing: 1964-01-16
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Granted: 1965-11-23
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Expires: 1984-01-16
Abstract
No abstract record available.
Inventors
- 👤 Stryker Ole Hjalmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:58
CPC Classifications
F; F16; F16H; F16H21/00; F21; F21V; F21V21/00; F21V21/14; F21V21/26; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32081
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
IN AN EQUIPOISED LAMP OR THE LIKE, THE COMBINATION OF, A BASE MEMBER, AN EQUIPOISED ARM ASSEMBLY FORMED BY A PAIR OF PARALLEL ARMS AND A LAMP-SUPPORTING ARM CONNECTED TOGETHER BY PIVOT MEANS FORMING A PAIR OF SPACED PIVOTS NEAR ONE END OF THE LAMP-SUPPORTING ARM AND AT THE END OF EACH OF SAID PAIR OF ARMS, A LAMP ASSEMBLY MOUNTED UPON SAID LAMP-SUPPORTING ARM, FRICTION PIVOT MEANS INTERCONNECTING SAID PARALLEL ARMS AND FORMING SAID ARMS INTO A PARALLELOGRAM LINKAGE WITH ONE OF SAID PARALLEL ARMS HAVING ONE END PIVOTED DIRECTLY TO SAID BASE MEMBER, AND A COUNTERWEIGHT RIGIDLY MOUNTED UPON THE OTHER OF SAID PARALLEL ARMS AND PRODUCING A COUNTERBALANCING EFFECT FOR SAID LAMP ASSEMBLY ABOUT THE PIVOT INTERCONNECTING SAID BASE MEMBER AND SASID ONE OF SAID PARALLEL ARMS, SAID FRICTION PIVOT MEANS COMPRISING A PAIR OF FRICTION ARMS HAVING PIVOT PORTIONS POSITIONED UPON OPPOSITE SIDES OF SAID ONE OF SAID PARALLEL ARMS AND POSITIONED BETWEEN PIVOT PORTIONS ON SAID BASE MEMBER AND TWO PAIRS OF FLEXIBLE PLASTIC WASHERS POSITIONED RESPECTIVELY UPON THE OPPOSITE SIDES OF SAID PIVOT PORTIONS OF SAID FRICTION ARMS.
Claim 2
Dependent Claim
184 words
IN AN EQUIPOISED LAMP OR THE LIKE, THE COMBINATION OF, A BASE MEMBER, AN EQUIPOISED ARM ASSEMBLY FORMED BY A PAIR OF PARALLEL ARMS AND A LAMP-SUPPORTING ARM CONNECTED TOGETHER BY PIVOT MEANS FORMING A PAIR OF SPACED PIVOTS NEAR ONE END OF THE LAMP-SUPPORTING ARM AND AT THE END OF EACH OF SAID PAIR OF ARMS, A LAMP ASSEMBLY MOUNTED UPON SAID LAMP-SUPPORTING ARM, FRICTION PIVOT MEANS INTERCONNECTING SAID PARALLEL ARMS AND FORMING SAID ARMS INTO A PARALLELOGRAM LINKAGE WITH ONE OF SAID PARALLEL ARMS HAVING ONE END PIVOTED DIRECTLY TO SAID BASE MEMBER, AND A COUNTERWEIGHT RIGIDLY MOUNTED UPON THE OTHER OF SAID PARALLEL ARMS AND PRODUCING A COUNTERBALANCING EFFECT FOR SAID LAMP ASSEMBLY ABOUT THE PIVOT INTERCONNECTING SAID BASE MEMBER AND SASID ONE OF SAID PARALLEL ARMS, SAID FRICTION PIVOT MEANS COMPRISING A PAIR OF FRICTION ARMS HAVING PIVOT PORTIONS POSITIONED UPON OPPOSITE SIDES OF SAID ONE OF SAID PARALLEL ARMS AND POSITIONED BETWEEN PIVOT PORTIONS ON SAID BASE MEMBER AND TWO PAIRS OF FLEXIBLE PLASTIC WASHERS POSITIONED RESPECTIVELY UPON THE OPPOSITE SIDES OF SAID PIVOT PORTIONS OF SAID FRICTION ARMS.
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |