US3203704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary mechanical seal
Assignee: MUELLER SEAL CO
•
Filing: 1962-12-03
•
Granted: 1965-08-31
•
Expires: 1982-12-03
Abstract
No abstract record available.
Inventors
- 👤 Peter A Mureller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:28
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36; F16J15/363; Y; Y10; Y10S; Y10S277/00; Y10S277/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A ROTARY MECHANICAL SEAL FOR SEALING A HOUSING WALL OPENING THROUGH WHICH A ROTABLE SHAFT EXTENDS, IN COMBINATION, AN ANTI-FRICTION WASHER HAVING A CYLINDRICAL OPENING EXTENDING THERETHROUGH AND ADAPTED TO SURROUND THE SHAFT, SAID WASHER HAVING AN ANNULAR FORWARD END FACE DESIGNED FOR RUNNING ENGAGEMENT WITH A COOPERATING ANNULAR RADIAL SURFACE NORMAL TO AND TURNING WITH THE SHAFT, A GENERALLY CYLINDRICAL RETAINER ENCIRCLING AT LEAST THE REAR END REGION OF THE WASHER AND ADAPTED TO BE PRESSED INTO THE HOUSING WALL OPENING, THE REAR RIM REGION OF SAID RETAINER BEING PROVIDED WITH AN INTURNED AND REENTRANT FLANGE DEFINING A FORWARDLY FACING ANNULAR CHANNEL, A THIN FLEXIBLLE IMPERFORATE GENERALLY FRUSTO-CONICAL
Claim 2
Dependent Claim
110 words
IN A ROTARY MECHANICAL SEAL FOR SEALING A HOUSING WALL OPENING THROUGH WHICH A ROTABLE SHAFT EXTENDS, IN COMBINATION, AN ANTI-FRICTION WASHER HAVING A CYLINDRICAL OPENING EXTENDING THERETHROUGH AND ADAPTED TO SURROUND THE SHAFT, SAID WASHER HAVING AN ANNULAR FORWARD END FACE DESIGNED FOR RUNNING ENGAGEMENT WITH A COOPERATING ANNULAR RADIAL SURFACE NORMAL TO AND TURNING WITH THE SHAFT, A GENERALLY CYLINDRICAL RETAINER ENCIRCLING AT LEAST THE REAR END REGION OF THE WASHER AND ADAPTED TO BE PRESSED INTO THE HOUSING WALL OPENING, THE REAR RIM REGION OF SAID RETAINER BEING PROVIDED WITH AN INTURNED AND REENTRANT FLANGE DEFINING A FORWARDLY FACING ANNULAR CHANNEL, A THIN FLEXIBLLE IMPERFORATE GENERALLY FRUSTO-CONICAL
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |