US3083975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft seals
Assignee: Aircraft Precision Products Inc
•
Filing: 1959-04-13
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Granted: 1963-04-02
•
Expires: 1979-04-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas N Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:50
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/44; F16J15/444; Y; Y10; Y10S; Y10S417/00; Y10S417/01; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A REPLACEABLE TWO-PART CELLULAR STRUCTURE FOR USE AS A SEAL BETWEEN RELATIVELY ROTATABLE MEMBERS, COMPRISING A RETAINER RING OF CHANNEL-SHAPED CROSS-SECTION HAVING THE CHANNEL THEREOF OPENING RADIALLY, AND AN ANNULUS FORMED FROM A LONGITUDINALLY CURVED ELONGATED HONEYCOMB MEMBER HAVING THE OPPOSITE ENDS THEREOF SECURED TOGETHER IN ABUTTING END-TO-END RELATION, SAID ANNULUS BEING SECURED CONCENTRICALLY WITHIN SAID CHANNEL AND HAVING A PLURALITY OF CIRCUMFERENTIALLY EXTENDING CORRUGATED STRIPS, ALTERNATE APICES OF THE CORRUGATIONS OF ADJACENT STRIPS BEING CONNECTED TOGETHER TO FORM A MULTIPLICITY OF SEPARATE OUTWARDLY OPENING CELLS, SAID ABUTTING ENDS OF SAID HONEYCOMB MEMBER EXTENDING DIAGONALLY WITH RESPECT TO THE MEDIAN LINE OF SAID CHANNEL AT AN ACUTE ANGLE THERETO, ALTERNATE CELL-FORMING WALLS OF SAID STRIPS EXTENDING DIAGONALLY WITH RESPECT TO SAID MEDIAN LINE AT THE SAME ACUTE
Claim 2
Dependent Claim
127 words
A REPLACEABLE TWO-PART CELLULAR STRUCTURE FOR USE AS A SEAL BETWEEN RELATIVELY ROTATABLE MEMBERS, COMPRISING A RETAINER RING OF CHANNEL-SHAPED CROSS-SECTION HAVING THE CHANNEL THEREOF OPENING RADIALLY, AND AN ANNULUS FORMED FROM A LONGITUDINALLY CURVED ELONGATED HONEYCOMB MEMBER HAVING THE OPPOSITE ENDS THEREOF SECURED TOGETHER IN ABUTTING END-TO-END RELATION, SAID ANNULUS BEING SECURED CONCENTRICALLY WITHIN SAID CHANNEL AND HAVING A PLURALITY OF CIRCUMFERENTIALLY EXTENDING CORRUGATED STRIPS, ALTERNATE APICES OF THE CORRUGATIONS OF ADJACENT STRIPS BEING CONNECTED TOGETHER TO FORM A MULTIPLICITY OF SEPARATE OUTWARDLY OPENING CELLS, SAID ABUTTING ENDS OF SAID HONEYCOMB MEMBER EXTENDING DIAGONALLY WITH RESPECT TO THE MEDIAN LINE OF SAID CHANNEL AT AN ACUTE ANGLE THERETO, ALTERNATE CELL-FORMING WALLS OF SAID STRIPS EXTENDING DIAGONALLY WITH RESPECT TO SAID MEDIAN LINE AT THE SAME ACUTE
References Cited (Backward Citations)
FR407012A
Cited
US2020986A
Cited
US2756496A
Cited
US2963307A
Cited
US2878560A
Cited
GB793886A
Cited
US2886351A
Cited
US2963268A
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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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |