US3088561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Damped structures
Assignee: Hutchinson Aerospace and Industry Inc
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Filing: 1958-11-06
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Granted: 1963-05-07
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Expires: 1978-11-06
Abstract
No abstract record available.
Inventors
- 👤 Jerome E Ruzicka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:08
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/30; E; E04; E04C; E04C3/00; E04C3/02; E04C3/29; F16F7/00; F16F7/10; F16F7/104; F16F7/108
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A SELF-DAMPED COMPOSITE MEMBER SUBJECT TO FLEXURAL MOVEMENTS RESPONSIVE TO EXCITATION OF VIBRATORY CHARACTER COMPRISING A FIRST PORTION HAVING ALL PARTS THEREOF SUBSTANTIALLY RIGIDLY UNITED, A PLURALITY OF SEPARATE PORTIONS EACH MATED WITH SAID FIRST PORTION OVER A DIFFERENT ELONGATED PATH, ONE OF EACH OF SAID MATED PORTIONS HAVING AN ELONGATED PASSAGEWAY THEREIN EXTENDING IN A DIRECTION SUBSTANTIALLY PARALLEL WITH A PLANE OF SAID FLEXURAL MOVEMENTS AND THE OTHER OF EACH OF SAID MATED PORTION BEING AT LEAST PARTLY ENVELOPED WITHIN SAID PASSAGEWAY OVER ONE ELONGATED PATH WITH EXTERNAL SURFACES OF SAID OTHER PORTION ADJACENT AND LONGITUDINALLY SLIDABLE IN RELATION TO INTERNAL SURFACES OF SAID PASSAGEWAY OVER SAID ELONGATED PATH, SAID SEPARATE PORTIONS HAVING A FLEXURAL RIGIDITY DIFFERENT FROM THAT OF SAID FIRST PORTION, AND A SUBSTANTIALLY PERMANENTLY VISCOUS DAMPING MEDIUM INTERPOSED IN A THIN LAYER BETWEEN SAID SURFACES INSIDE SAID PASSAGEWAY, SAID VISCOUS MEDIUM HAVING THE CHARACTERISTIC OF ADHESIVENESS TO SAID SURFACES.
Claim 2
Dependent Claim
153 words
A SELF-DAMPED COMPOSITE MEMBER SUBJECT TO FLEXURAL MOVEMENTS RESPONSIVE TO EXCITATION OF VIBRATORY CHARACTER COMPRISING A FIRST PORTION HAVING ALL PARTS THEREOF SUBSTANTIALLY RIGIDLY UNITED, A PLURALITY OF SEPARATE PORTIONS EACH MATED WITH SAID FIRST PORTION OVER A DIFFERENT ELONGATED PATH, ONE OF EACH OF SAID MATED PORTIONS HAVING AN ELONGATED PASSAGEWAY THEREIN EXTENDING IN A DIRECTION SUBSTANTIALLY PARALLEL WITH A PLANE OF SAID FLEXURAL MOVEMENTS AND THE OTHER OF EACH OF SAID MATED PORTION BEING AT LEAST PARTLY ENVELOPED WITHIN SAID PASSAGEWAY OVER ONE ELONGATED PATH WITH EXTERNAL SURFACES OF SAID OTHER PORTION ADJACENT AND LONGITUDINALLY SLIDABLE IN RELATION TO INTERNAL SURFACES OF SAID PASSAGEWAY OVER SAID ELONGATED PATH, SAID SEPARATE PORTIONS HAVING A FLEXURAL RIGIDITY DIFFERENT FROM THAT OF SAID FIRST PORTION, AND A SUBSTANTIALLY PERMANENTLY VISCOUS DAMPING MEDIUM INTERPOSED IN A THIN LAYER BETWEEN SAID SURFACES INSIDE SAID PASSAGEWAY, SAID VISCOUS MEDIUM HAVING THE CHARACTERISTIC OF ADHESIVENESS TO SAID SURFACES.
References Cited (Backward Citations)
GB513171A
Cited
US2426359A
Cited
US2584222A
Cited
US2514140A
Cited
US2636399A
Cited
US2930455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |