Patent US3375014A successfully refreshed from Google Patents.
US3375014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal assembly
Assignee: Worthington Corp
•
Filing: 1966-02-09
•
Granted: 1968-03-26
•
Expires: 1986-02-09
Abstract
No abstract record available.
Inventors
- 👤 Donald E Chubb
- 👤 Angelo C Giurlando
- 👤 Raymond E Rayner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:39
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/54; F16C; F16C33/00; F16C33/72; F16C33/76; F16J15/16; F16J15/34; F16J15/36; F16J15/40; Y; Y10; Y10S; Y10S277/00; Y10S277/929; Y10S277/93
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
A MECHANICAL SEAL FOR A ROTATABLE SHAFT EXTENDING INTO A HOUSING COMPRISING: (A) TWO AXIALLY SPACED SEALING MEMBERS MOUNTED BETWEEN THE HOUSING AND THE SHAFT; (B) AN ANNULAR CHAMBER FORMED IN THE HOUSING BETWEEN THE SEALING MEMBERS; (C) AN INLET PORT AND AN OUTLET PORT IN THE CHAMBER FOR CIRCULATING LUBRICATING OIL THROUGH THE CHAMBER WHEN THE SHAFT IS ROTATING, THE INLET PORT BEING CIRCUMFERENTIALLY SPACED A RELATIVELY SHORT DISTANCE FROM THE OUTLET PORT IN THE DIRECTION OF ROTATION OF THE SHAFT; AND (D) A LONGITUDINALLY EXTENDING INWARDLY PROJECTING BAFFLE IN THE CHAMBER BETWEEN THE INLET AND THE OUTLET PORTS TO PREVENT OIL FLOW DIRECTLY FROM THE INLET TO THE OUTLET PORT.
References Cited (Backward Citations)
US2162486A
Cited
US2381823A
Cited
US2622902A
Cited
US2485497A
Cited
US2488200A
Cited
US2710205A
Cited
US2830755A
Cited
US3031197A
Cited
US3030118A
Cited
US3028181A
Cited
US3129011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |