US3155393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed quench collar
Assignee: Durametallic Corp
•
Filing: 1962-12-19
•
Granted: 1964-11-03
•
Expires: 1982-12-19
Abstract
No abstract record available.
Inventors
- 👤 Herbert B Hummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:37
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/38; F16J15/162; Y; Y10; Y10S; Y10S277/00; Y10S277/91; Y10S277/93
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN MECHANICAL SEAL CONSTRUCTION FOR USE BETWEEN A WALL AND A SHAFT EXTENDING THERETHROUGH AND ROTATABLE RELATIVE THERETO, WHEREIN SAID MECHANICAL SEAL HAS A PAIR OF SEALING MEMBERS HAVING MUTUALLY CONTACTING SEALING FACES, ONE SEALING MEMBER BEING FIXED WITH RESPECT TO SAID WALL AND THE OTHER SEALING MEMBER BEING CAPABLE OF ROTATION IN RESPONSE TO ROTATION OF SAID SHAFT, THE IMPROVEMENT COMPRISING: ENCLOSURE MEANS DEFINING A CHAMBER SURROUNDING SAID SEAL, A FIRST PORTION OF SAID ENCLOSURE MEANS BEING ROTATABLE WITH SAID OTHER SEALING MEMBER AND A SECOND PORTION OF SAID ENCLOSURE MEANS BEING FIXED WITH RESPECT TO SAID WALL, SAID FIRST AND SECOND PORTIONS OF SAID ENCLOSURE MEANS INCLUDING WALL MEANS DEFINING
Claim 2
Dependent Claim
112 words
IN MECHANICAL SEAL CONSTRUCTION FOR USE BETWEEN A WALL AND A SHAFT EXTENDING THERETHROUGH AND ROTATABLE RELATIVE THERETO, WHEREIN SAID MECHANICAL SEAL HAS A PAIR OF SEALING MEMBERS HAVING MUTUALLY CONTACTING SEALING FACES, ONE SEALING MEMBER BEING FIXED WITH RESPECT TO SAID WALL AND THE OTHER SEALING MEMBER BEING CAPABLE OF ROTATION IN RESPONSE TO ROTATION OF SAID SHAFT, THE IMPROVEMENT COMPRISING: ENCLOSURE MEANS DEFINING A CHAMBER SURROUNDING SAID SEAL, A FIRST PORTION OF SAID ENCLOSURE MEANS BEING ROTATABLE WITH SAID OTHER SEALING MEMBER AND A SECOND PORTION OF SAID ENCLOSURE MEANS BEING FIXED WITH RESPECT TO SAID WALL, SAID FIRST AND SECOND PORTIONS OF SAID ENCLOSURE MEANS INCLUDING WALL MEANS DEFINING
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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |