Patent US3311340A successfully refreshed from Google Patents.
US3311340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equipoise mechanism particularly for supporting lamps and small television sets
Assignee: Luxor Corp
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Filing: 1965-07-23
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Granted: 1967-03-28
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Expires: 1985-07-23
Abstract
No abstract record available.
Inventors
- 👤 John B Riis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:01
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/14; F21V21/26; F16; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/06; F16M11/10; F16M11/20; F16M11/2007; F16M11/2014; F16M11/2092; F16M11/24; F16M13/00; F16M13/02; F16M2200/00; F16M2200/04; F16M2200/044; F16M2200/06; F16M2200/063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
324 words
IN AN EQUIPOISE MECHANISM OF THE CHARACTER DESCRIBED, THE COMBINATION OF, A PAIR OF PARALLEL ARMS OF SUBSTANTIALLY THE SAME LENGTH AND COMPRISING A FIRST ARM AND A SECOND ARM, AN ARM-SUPPORTING BRACKET ASSEMBLY COMPRISING AN ELONGATED PIVOT AND AN ARM-SUPPORTING BRACKET, FIRST PIVOT MEANS PIVOTING SAID ARMS ON SAID ARMSUPPORTING BRACKET RESPECTIVELY UPON A PAIR OF PARALLEL AXES WHICH ARE SPACED FROM EACH OTHER AT A PREDETERMINED DISTANCE AXIALLY WITH RESPECT TO SAID ELONGATED PIVOT, A SUPPORTED BRACKET WHICH IS POSITIONED AT THE ENDS OF SAID ARMS OPPOSITE SAID ARM-SUPPORTING BRACKET AND WHICH IS ADAPTED TO PROVIDE SUPPORT FOR AN OBJECT, SAID SUPPORTED BRACKET COMPRISING A PAIR OF INTERCONNECTED METAL PLATE PORTIONS POSITIONED IN SPACED PARALLEL RELATIONSHIP UPON THE OPPOSITE SIDES OF ADJACENT ENDS OF SAID ARMS, SECOND PIVOT MEANS FORMING A PAIR OF PIVOTS CONNECTING SAID PLATE PORTIONS TO THE RESPECTIVE ENDS OF SAID ARMS WITH AXES SPACED FROM EACH OTHER SAID PREDETERMINED DISTANCE AXIALLY OF SAID ELONGATED PIVOT, WHEREBY A LINKAGE ASSEMBLY IS PROVIDED BY WHICH SAID SUPPORTED BRACKET IS MAINTAINED IN A PREDETERMINED RELATIONSHIP WITH RESPECT TO SAID ELONGATED PIVOT AXIS WHEN IT IS MOVED DURING THE SWINGING ACTION OF SAID ARMS, A FIRST PAIR OF COIL SPRINGS POSITIONED IN PARALLEL RELATIONSHIP UPON THE OPPOSITE SIDES OF SAID ARMS WITH ONE END OF EACH OF THE SPRINGS BEING ATTACHED TO SAID SUPPORTING BRACKET AT THE PIVOT FOR SAID FIRST ARM AND WITH THE OTHER END OF EACH OF SAID SPRINGS BEING ATTACHED TO SAID SECOND ARM, A SECOND PAIR OF COIL SPRINGS POSITIONED RESPECTIVELY UPON THE OPPOSITE SIDES OF SAID ARMS AND SUBSTANTIALLY PARALLEL TO EACH OTHER, ONE END OF EACH OF SAID SECOND PAIR OF SPRINGS BEING ATTACHED TO SAID SUPPORTED BRACKET AT THE PIVOT OF SAID SECOND ARM AND HAVING ITS OTHER END ATTACHED TO SAID FIRST ARM, SAID SPRINGS COOPERATING TO PROVIDE BALANCED AND EQUALIZED FORCES AT THE PIVOTS TO COUNTERBALANCE THE WEIGHT OF A SUPPORTED OBJECT.
Claim 2
Dependent Claim
324 words
IN AN EQUIPOISE MECHANISM OF THE CHARACTER DESCRIBED, THE COMBINATION OF, A PAIR OF PARALLEL ARMS OF SUBSTANTIALLY THE SAME LENGTH AND COMPRISING A FIRST ARM AND A SECOND ARM, AN ARM-SUPPORTING BRACKET ASSEMBLY COMPRISING AN ELONGATED PIVOT AND AN ARM-SUPPORTING BRACKET, FIRST PIVOT MEANS PIVOTING SAID ARMS ON SAID ARMSUPPORTING BRACKET RESPECTIVELY UPON A PAIR OF PARALLEL AXES WHICH ARE SPACED FROM EACH OTHER AT A PREDETERMINED DISTANCE AXIALLY WITH RESPECT TO SAID ELONGATED PIVOT, A SUPPORTED BRACKET WHICH IS POSITIONED AT THE ENDS OF SAID ARMS OPPOSITE SAID ARM-SUPPORTING BRACKET AND WHICH IS ADAPTED TO PROVIDE SUPPORT FOR AN OBJECT, SAID SUPPORTED BRACKET COMPRISING A PAIR OF INTERCONNECTED METAL PLATE PORTIONS POSITIONED IN SPACED PARALLEL RELATIONSHIP UPON THE OPPOSITE SIDES OF ADJACENT ENDS OF SAID ARMS, SECOND PIVOT MEANS FORMING A PAIR OF PIVOTS CONNECTING SAID PLATE PORTIONS TO THE RESPECTIVE ENDS OF SAID ARMS WITH AXES SPACED FROM EACH OTHER SAID PREDETERMINED DISTANCE AXIALLY OF SAID ELONGATED PIVOT, WHEREBY A LINKAGE ASSEMBLY IS PROVIDED BY WHICH SAID SUPPORTED BRACKET IS MAINTAINED IN A PREDETERMINED RELATIONSHIP WITH RESPECT TO SAID ELONGATED PIVOT AXIS WHEN IT IS MOVED DURING THE SWINGING ACTION OF SAID ARMS, A FIRST PAIR OF COIL SPRINGS POSITIONED IN PARALLEL RELATIONSHIP UPON THE OPPOSITE SIDES OF SAID ARMS WITH ONE END OF EACH OF THE SPRINGS BEING ATTACHED TO SAID SUPPORTING BRACKET AT THE PIVOT FOR SAID FIRST ARM AND WITH THE OTHER END OF EACH OF SAID SPRINGS BEING ATTACHED TO SAID SECOND ARM, A SECOND PAIR OF COIL SPRINGS POSITIONED RESPECTIVELY UPON THE OPPOSITE SIDES OF SAID ARMS AND SUBSTANTIALLY PARALLEL TO EACH OTHER, ONE END OF EACH OF SAID SECOND PAIR OF SPRINGS BEING ATTACHED TO SAID SUPPORTED BRACKET AT THE PIVOT OF SAID SECOND ARM AND HAVING ITS OTHER END ATTACHED TO SAID FIRST ARM, SAID SPRINGS COOPERATING TO PROVIDE BALANCED AND EQUALIZED FORCES AT THE PIVOTS TO COUNTERBALANCE THE WEIGHT OF A SUPPORTED OBJECT.
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) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |