US3253531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Louver adjusting mechanism
Assignee: Westinghouse Electric Corp
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Filing: 1964-10-12
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Granted: 1966-05-31
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Expires: 1984-10-12
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Eberhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:54
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/075; F24F13/08; F24F13/10; F24F13/14; F24F13/1426
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
AN ADJUSTABLE GANGED LOUVER ASSEMBLY COMPRISING: A FRAME; A PLURALITY OF ELONGATED LOUVER VANE SETS; MEANS TO PIVOTALLY SUPPORT EACH OF SAID SETS IN PARALLEL RELATION TO EACH OTHER ALONG THEIR CENTRAL LONG AXES IN SAID FRAME IN A MANNER TO PERMIT ROTATION OF SAID SETS ABOUT THEIR LONG AXES; A GANG BAR; MEANS MOUNTING SAID GANG BAR ON SAID FRAME ADJACENT ONE END OF EACH OF SAID PARALLEL SUPPORTED SETS FOR SLIDABLE MOVEMENT ALONG SAID ENDS OF SAID SETS, AND PIVOTAL MOVEMENT TOWARD AND AWAY FROM SAID ENDS; MEANS CONNECTING SAID ENDS OF SAID SETS, ALONG ECCENTRIC LONGITUDINAL AXES OF SAID SETS, TO SAID GANG BAR SO THAT SAID SLIDABLE MOVEMENT OF SAID GANG BAR EFFECTS PIVOTAL MOVEMENT OF SAID SETS ABOUT THEIR CENTRAL LONG AXES; AND MEANS BIASING SAID GANG BAR INTO A NORMAL POSITION MAINTAINING SAID ECCENTRIC CONNECTIONS, SAID BIASING MEANS BEING YIELDABLE TO PERMIT SAID PIVOTAL MOVEMENT OF SAID GANG BAR AND THE RELEASE OF SAID ECCENTRIC CONNECTIONS TO PERMIT ROTATION OF SAID SETS, INDIVIDUALLY, ABOUT THEIR LONGITUDINAL AXES TO A REVERSED POSITION.
Claim 2
Dependent Claim
177 words
AN ADJUSTABLE GANGED LOUVER ASSEMBLY COMPRISING: A FRAME; A PLURALITY OF ELONGATED LOUVER VANE SETS; MEANS TO PIVOTALLY SUPPORT EACH OF SAID SETS IN PARALLEL RELATION TO EACH OTHER ALONG THEIR CENTRAL LONG AXES IN SAID FRAME IN A MANNER TO PERMIT ROTATION OF SAID SETS ABOUT THEIR LONG AXES; A GANG BAR; MEANS MOUNTING SAID GANG BAR ON SAID FRAME ADJACENT ONE END OF EACH OF SAID PARALLEL SUPPORTED SETS FOR SLIDABLE MOVEMENT ALONG SAID ENDS OF SAID SETS, AND PIVOTAL MOVEMENT TOWARD AND AWAY FROM SAID ENDS; MEANS CONNECTING SAID ENDS OF SAID SETS, ALONG ECCENTRIC LONGITUDINAL AXES OF SAID SETS, TO SAID GANG BAR SO THAT SAID SLIDABLE MOVEMENT OF SAID GANG BAR EFFECTS PIVOTAL MOVEMENT OF SAID SETS ABOUT THEIR CENTRAL LONG AXES; AND MEANS BIASING SAID GANG BAR INTO A NORMAL POSITION MAINTAINING SAID ECCENTRIC CONNECTIONS, SAID BIASING MEANS BEING YIELDABLE TO PERMIT SAID PIVOTAL MOVEMENT OF SAID GANG BAR AND THE RELEASE OF SAID ECCENTRIC CONNECTIONS TO PERMIT ROTATION OF SAID SETS, INDIVIDUALLY, ABOUT THEIR LONGITUDINAL AXES TO A REVERSED POSITION.
References Cited (Backward Citations)
US2236865A
Cited
US2395319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |