US3198298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shutter slat and slat mounting
Assignee: Kysor Heater Co
•
Filing: 1961-09-13
•
Granted: 1965-08-03
•
Expires: 1981-09-13
Abstract
No abstract record available.
Inventors
- 👤 David R Ferris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:30
CPC Classifications
F; F01; F01P; F01P7/00; F01P7/02; F01P7/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A RADIATOR SHUTTER COMPRISING A PLURALITY OF SLOTS PIVOTALLY MOUNTED AT THEIR ENDS ON OPPOSITE SIDES OF A FRAME BY PINTLES ON THE SLATS, SAID PINTLES BEING LIKE PARTS HAVING INNER PORTION S OF UNIFORM NON-CIRCULAR CROSS SECTION WITH OUTER ENDS OF CIRCULAR CROSS SECTION PROJECTING BEYOND THE ENDS OF THE SLATS AS PIVOTS, CRANK ARMS ON ONE END OF THE SLATS PROJECTING ALONGSIDE OF THE PINTLES AND ENGAGED WITH AN OPERATING BAR COMMON TO ALL THE PINTLES AND SLATS, SAID CRANK ARMS BEING ANGLED PIECES HAVING THEIR INNER ENDS SECURED BY WELDING TO THE NON-CIRCULAR PORTIONS OF ONE OF SAID PINTLES, SAID SLATS HAVING SPACED LONGITUDINAL STIFFENING RIBS ON THEIR BACK SIDE DEFORMED INTO RETAINING ENGAGEMENT WITH THE NON-CIRCULAR PORTIONS OF SAID PINTLES.
Claim 2
Dependent Claim
124 words
A RADIATOR SHUTTER COMPRISING A PLURALITY OF SLOTS PIVOTALLY MOUNTED AT THEIR ENDS ON OPPOSITE SIDES OF A FRAME BY PINTLES ON THE SLATS, SAID PINTLES BEING LIKE PARTS HAVING INNER PORTION S OF UNIFORM NON-CIRCULAR CROSS SECTION WITH OUTER ENDS OF CIRCULAR CROSS SECTION PROJECTING BEYOND THE ENDS OF THE SLATS AS PIVOTS, CRANK ARMS ON ONE END OF THE SLATS PROJECTING ALONGSIDE OF THE PINTLES AND ENGAGED WITH AN OPERATING BAR COMMON TO ALL THE PINTLES AND SLATS, SAID CRANK ARMS BEING ANGLED PIECES HAVING THEIR INNER ENDS SECURED BY WELDING TO THE NON-CIRCULAR PORTIONS OF ONE OF SAID PINTLES, SAID SLATS HAVING SPACED LONGITUDINAL STIFFENING RIBS ON THEIR BACK SIDE DEFORMED INTO RETAINING ENGAGEMENT WITH THE NON-CIRCULAR PORTIONS OF SAID PINTLES.
References Cited (Backward Citations)
US1947875A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |