Patent US3275031A successfully refreshed from Google Patents.
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 02:46
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
References Cited (Backward Citations)
US12145A
Cited
GB245650A
Cited
US2510429A
Cited
US2586997A
Cited
US3000083A
Cited
US2884997A
Cited
US2976884A
Cited
US2926400A
Cited
US3049985A
Cited
US3084715A
Cited
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 |