US3083699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary mechanism
Assignee: Individual
•
Filing: 1958-11-18
•
Granted: 1963-04-02
•
Expires: 1978-11-18
Abstract
No abstract record available.
Inventors
- 👤 Walter G Froede
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:10
CPC Classifications
F; F01; F01C; F01C19/00; F01C19/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A ROTATABLE BODY MEMBER AND SEAL COMBINATION FOR USE WITHIN A HOLLOW OUTER BODY OF A ROTARY MECHANISM TO FORM WORKING FLUID CHAMBERS BETWEEN SAID BODIES; SAID COMBINATION COMPRISING A ROTATABLE BODY MEMBER HAVING SUBSTANTIALLY-FLAT END FACES SPACED ALONG ITS AXIS AND HAVING AN OUTER PERIPHERAL SURFACE WITH A PLURALITY OF CIRCUMFERENTIALLY-SPACED APEX PORTIONS WITH EACH OF SAID APEX PORTIONS HAVING AN OUTWARDLY ARCHED PROFILE IN A PLANE INCLUDING SAID AXIS AND HAVING A RADIALLY-OUTWARDLY-OPENING GROOVE ALONG ITS OUTER EDGE IN SAID PLANE; A PLURALITY OF RADIALLY-MOVABLE ARCH-SHAPED APEX SEALING STRIP MEANS CARRIED BY THE ROTATABLE BODY MEMBER, THERE BEING ONE SUCH APEX SEALING STRIP MEANS FOR AND RECEIVED WITHIN EACH SAID APEX GROOVE WITH EACH APEX SEALING STRIP MEANS HAVING A SEAL FACE ALONG ITS RADIALLY OUTER EDGE; A PLURALITY OF END FACE SEAL STRIPS CARRIED BY THE ROTATABLE BODY MEMBER WITHIN END FACE GROOVES IN SAID ROTATABLE MEMBER, SAID END FACE SEAL STRIPS BEING MOVABLE IN A DIRECTION
Claim 2
Dependent Claim
160 words
A ROTATABLE BODY MEMBER AND SEAL COMBINATION FOR USE WITHIN A HOLLOW OUTER BODY OF A ROTARY MECHANISM TO FORM WORKING FLUID CHAMBERS BETWEEN SAID BODIES; SAID COMBINATION COMPRISING A ROTATABLE BODY MEMBER HAVING SUBSTANTIALLY-FLAT END FACES SPACED ALONG ITS AXIS AND HAVING AN OUTER PERIPHERAL SURFACE WITH A PLURALITY OF CIRCUMFERENTIALLY-SPACED APEX PORTIONS WITH EACH OF SAID APEX PORTIONS HAVING AN OUTWARDLY ARCHED PROFILE IN A PLANE INCLUDING SAID AXIS AND HAVING A RADIALLY-OUTWARDLY-OPENING GROOVE ALONG ITS OUTER EDGE IN SAID PLANE; A PLURALITY OF RADIALLY-MOVABLE ARCH-SHAPED APEX SEALING STRIP MEANS CARRIED BY THE ROTATABLE BODY MEMBER, THERE BEING ONE SUCH APEX SEALING STRIP MEANS FOR AND RECEIVED WITHIN EACH SAID APEX GROOVE WITH EACH APEX SEALING STRIP MEANS HAVING A SEAL FACE ALONG ITS RADIALLY OUTER EDGE; A PLURALITY OF END FACE SEAL STRIPS CARRIED BY THE ROTATABLE BODY MEMBER WITHIN END FACE GROOVES IN SAID ROTATABLE MEMBER, SAID END FACE SEAL STRIPS BEING MOVABLE IN A DIRECTION
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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 |