US3275031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dampers and seal means therefor
Assignee: Johnson Controls International Inc
•
Filing: 1963-01-29
•
Granted: 1966-09-27
•
Expires: 1983-01-29
Abstract
No abstract record available.
Inventors
- 👤 Harold W Alyea
- 👤 Edward D Jurasinski
- 👤 Eugene V Fliss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:46
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08; F24F13/10; F24F13/14; F24F13/15; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/8741; Y10T137/87442; Y10T137/8745; Y10T137/87467; Y10T137/87483
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A DAMPER BLADE COMPRISING LIKE SHEET METAL HALVES EACH FORMED WITH OPPOSITE EDGE SEAL-RECEIVING GROOVES WHICH ARE PARALLEL TO EACH OTHER, THE HALVES BEING SO POSITIONED AND SECURED IN BACK-TO-BACK RELATION THAT THE EDGE SEAL-RECEIVING GROOVES COOPERATE TO PROVIDE TUBULAR SEAL RECEPTACLES, THE OUTER EDGES OF SAID SEAL-RECEIVING GROOVES TERMINATING SHORT OF MEETING TO PROVIDE SLOTS OF LESS WIDTH THAN THE CROSS-SECTIONAL SIZE OF SAID SEAL RECEPTACLES, TRUNNIONS PROJECTING FROM THE END EDGES OF THE BLADE INTERMEDIATE THE GROOVES, AND ELONGATED FLEXIBLE SEALING MEMBERS HAVING ENLARGED CROSS-SECTIONAL PORTIONS IN SAID RECEPTALES AND HAVING EXTERNAL SEALING PORTIONS PROJECTING FROM SAID SLOTS AND OF ENLARGED CROSS-SECTIONAL BEYOND THE SLOTS, AT LEAST ONE OF SAID SEALING MEMBERS OF EACH BLADE HAVING ITS ENLARGED CROSS-SECTIONAL PORTIONS OF DIFFERENT SIZE, AND SAID SEAL RECEPTALCES BEING OF A CROSSSECTIONAL SIZE TO RECEIVE EITHER OF SAID ENLARGED CROSS-SECTIONAL SEALING MEMBER PORTIONS, WHEREBY THE SEALING MEMBER IS INTERCHANGEABLE IN POSITION TO VARY THE AMOUNT WHICH PROJECTS EXTERNALLY OF THE SEAL RECEPTACLE THEREBY COMPENSATE FOR TOLERANCE VARIATIONS
Claim 2
Dependent Claim
168 words
A DAMPER BLADE COMPRISING LIKE SHEET METAL HALVES EACH FORMED WITH OPPOSITE EDGE SEAL-RECEIVING GROOVES WHICH ARE PARALLEL TO EACH OTHER, THE HALVES BEING SO POSITIONED AND SECURED IN BACK-TO-BACK RELATION THAT THE EDGE SEAL-RECEIVING GROOVES COOPERATE TO PROVIDE TUBULAR SEAL RECEPTACLES, THE OUTER EDGES OF SAID SEAL-RECEIVING GROOVES TERMINATING SHORT OF MEETING TO PROVIDE SLOTS OF LESS WIDTH THAN THE CROSS-SECTIONAL SIZE OF SAID SEAL RECEPTACLES, TRUNNIONS PROJECTING FROM THE END EDGES OF THE BLADE INTERMEDIATE THE GROOVES, AND ELONGATED FLEXIBLE SEALING MEMBERS HAVING ENLARGED CROSS-SECTIONAL PORTIONS IN SAID RECEPTALES AND HAVING EXTERNAL SEALING PORTIONS PROJECTING FROM SAID SLOTS AND OF ENLARGED CROSS-SECTIONAL BEYOND THE SLOTS, AT LEAST ONE OF SAID SEALING MEMBERS OF EACH BLADE HAVING ITS ENLARGED CROSS-SECTIONAL PORTIONS OF DIFFERENT SIZE, AND SAID SEAL RECEPTALCES BEING OF A CROSSSECTIONAL SIZE TO RECEIVE EITHER OF SAID ENLARGED CROSS-SECTIONAL SEALING MEMBER PORTIONS, WHEREBY THE SEALING MEMBER IS INTERCHANGEABLE IN POSITION TO VARY THE AMOUNT WHICH PROJECTS EXTERNALLY OF THE SEAL RECEPTACLE THEREBY COMPENSATE FOR TOLERANCE VARIATIONS
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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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |