US3389920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating seal for adjustable blade
Assignee: Library and Archives Canada
•
Filing: 1966-07-25
•
Granted: 1968-06-25
•
Expires: 1986-07-25
Abstract
No abstract record available.
Inventors
- 👤 Michael B Allan
- 👤 Kanger Feodor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:35
CPC Classifications
F; F03; F03B; F03B3/00; F03B3/12; F03B3/14; B; B63; B63H; B63H3/00; B63H3/12; F16; F16J; F16J15/00; F16J15/54; Y; Y02; Y02E; Y02E10/00; Y02E10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN A SEAL ASSEMBLY FOR A MACHINE HAVING A FIRST MAJOR COMPONENT ROTATABLY SECURED TO A SECOND MAJOR COMPONENT ABOUT A PIVOT AXIS, INCLUDING AN ANNULAR SEAL RECESS BETWEEN THE MAJOR COMPONENTS IN A SUBSTANTIALLY COAXIAL RELATION WITH THE PIVOT AXIS, HAVING A FIRST CONTINUOUS ANNULAR SURFACE FORMING PART OF THE RECESS IN FIXED SEALED RELATION WITH ONE OF SAID COMPONENTS AND A SECOND CONTINUOUS ANNULAR SURFACE FORMING PART OF THE RECESS, SPACED FROM SAID FIRST ANNULAR SURFACE AND IN FIXED SEALED RELATION WITH THE OTHER OF SAID COMPONENTS, THE IMPROVEMENT COMPRISING; AN ANNULAR SEAL RING LOCATED WITHIN SAID RECESS AND POSITIONED TO SEAL THE SPACE BE-
Claim 2
Dependent Claim
107 words
IN A SEAL ASSEMBLY FOR A MACHINE HAVING A FIRST MAJOR COMPONENT ROTATABLY SECURED TO A SECOND MAJOR COMPONENT ABOUT A PIVOT AXIS, INCLUDING AN ANNULAR SEAL RECESS BETWEEN THE MAJOR COMPONENTS IN A SUBSTANTIALLY COAXIAL RELATION WITH THE PIVOT AXIS, HAVING A FIRST CONTINUOUS ANNULAR SURFACE FORMING PART OF THE RECESS IN FIXED SEALED RELATION WITH ONE OF SAID COMPONENTS AND A SECOND CONTINUOUS ANNULAR SURFACE FORMING PART OF THE RECESS, SPACED FROM SAID FIRST ANNULAR SURFACE AND IN FIXED SEALED RELATION WITH THE OTHER OF SAID COMPONENTS, THE IMPROVEMENT COMPRISING; AN ANNULAR SEAL RING LOCATED WITHIN SAID RECESS AND POSITIONED TO SEAL THE SPACE BE-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |