US3198529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary face seal
Assignee: Bank of America Illinois
•
Filing: 1962-03-23
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Granted: 1965-08-03
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Expires: 1982-03-23
Abstract
No abstract record available.
Inventors
- 👤 Robert M Voitik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:39
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404; F16J15/38; Y; Y10; Y10S; Y10S277/00; Y10S277/929
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A ROTARY SEAL FOR RESTRICTING FLUID LINKAGE ALONG A SHAFT PASSING THROUGH A RELATIVELY ROTATABLE HOUSING COMPRISING, IN COMBINATION, AN ANNULAR ROTOR SECURED TO SAID SHAFT AND DEFINING A SEALING SURFACE, AN ANNULAR STATOR SURROUNDING SAID SHAFT AND HAVING SEALING SURFACE FACING SAID ROTOR SEALING SURFACE, MEANS FOR ESTABLISHING A FLUID SEAL BETWEEN SAID STATOR AND SAID HOUSING, MEANS FOR URGING SAID SURFACES INTO SEALING ENGAGEMENT SO THAT RELATIVE ROTATION BETWEEN SAID ROTOR AND SAID STATOR CREATES A TORQUE TENDING TO ROTATE THE STATOR RELATIVE TO SAID HOUSING, SAID STATOR BEING MOUNTED FOR LIMITED ROTATIONAL MOVEMENT RELATIVE TO SAID HOUSING UNDER THE URGING OF SAID TORQUE, AND MEANS INCLUDING A PAIR OF ELEMENTS FOR CONVERTING RELATIVE ROTATION OF SAID ELEMENTS INTO RELATIVE AXIAL MOVEMENT OF THE ELEMENTS, SAID MEANS BEING INTERPOSED BETWEEN SAID STATOR AND SAID ROTOR WITH ONE OF SAID ELEMENTS BEING COUPLED FOR ROTATION WITH SAID STATOR AND THE OTHER OF SAID ELEMENTS ACTING AXIALLY AGAINST SAID ROTOR.
Claim 2
Dependent Claim
160 words
A ROTARY SEAL FOR RESTRICTING FLUID LINKAGE ALONG A SHAFT PASSING THROUGH A RELATIVELY ROTATABLE HOUSING COMPRISING, IN COMBINATION, AN ANNULAR ROTOR SECURED TO SAID SHAFT AND DEFINING A SEALING SURFACE, AN ANNULAR STATOR SURROUNDING SAID SHAFT AND HAVING SEALING SURFACE FACING SAID ROTOR SEALING SURFACE, MEANS FOR ESTABLISHING A FLUID SEAL BETWEEN SAID STATOR AND SAID HOUSING, MEANS FOR URGING SAID SURFACES INTO SEALING ENGAGEMENT SO THAT RELATIVE ROTATION BETWEEN SAID ROTOR AND SAID STATOR CREATES A TORQUE TENDING TO ROTATE THE STATOR RELATIVE TO SAID HOUSING, SAID STATOR BEING MOUNTED FOR LIMITED ROTATIONAL MOVEMENT RELATIVE TO SAID HOUSING UNDER THE URGING OF SAID TORQUE, AND MEANS INCLUDING A PAIR OF ELEMENTS FOR CONVERTING RELATIVE ROTATION OF SAID ELEMENTS INTO RELATIVE AXIAL MOVEMENT OF THE ELEMENTS, SAID MEANS BEING INTERPOSED BETWEEN SAID STATOR AND SAID ROTOR WITH ONE OF SAID ELEMENTS BEING COUPLED FOR ROTATION WITH SAID STATOR AND THE OTHER OF SAID ELEMENTS ACTING AXIALLY AGAINST SAID ROTOR.
References Cited (Backward Citations)
US3052475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |