US3341265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitized dual lip seal
Assignee: Timken Co
•
Filing: 1965-09-03
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Granted: 1967-09-12
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Expires: 1985-09-03
Abstract
No abstract record available.
Inventors
- 👤 Peter C Paterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:58
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3248; F16J15/3252; F16J15/3256; B; B61; B61F; B61F15/00; B61F15/20; B61F15/22; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F16C33/7803; F16C33/7813; F16C19/00; F16C19/22; F16C19/34; F16C19/38; F16C19/383; F16C19/385; F16C19/386; F16C2326/00; F16C2326/10; F16C33/726
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A UNITIZED DUAL LIP SEAL FOR A ROTARY SHAFT COMPRISING A CYLINDRICAL SEAL CASING HAVING AN INWARDLY DIRECTED RADIAL FLANGE, A SEAL MEMBER HAVING A MAIN BODY PORTION ADJOINING A PAIR OF DIAGONALLY DIVERGING SEALING LIPS AND HAVING AN INNER FLANGE PORTION AND AN OUTER FLANGE PORTION, SAID SEAL MEMBER BONDED TO SAID RADIAL FLANGE ALONG SAID INNER FLANGE PORTION AND SAID OUTER FLANGE PORTION, SAID OUTER FLANGE PORTION HAVING A CYLINDRICAL BUMPER RIM EXTENDING BEYOND ONE OF SAID SEALING LIPS, AND SAID INNER FLANGE PORTION HAVING AN INNER BUMPER MEMBER BONDED TO SAID SEAL CASE AND EXTENDING LONGITUDINALLY BEYOND THE OTHER OF SAID SEALING LIPS, A WEAR MEMBER HAVING A CYLINDRICAL PORTION FOR SAID SEALING LIPS TO SEAT ON AND HAVING AN OUTWARDLY DIRECTED RADIAL PORTION EXTENDING AXIALLY ADJACENT SAID INNER BUMPER MEMBER AND SPACED FROM SAID SEAL CASE, AND THRUST RING HAVING A CYLINDRICAL PART NESTED WITH THE CYLINDRICAL PORTION OF SAID WEAR MEMBER AND HAVING A RADIAL MEMBER OUTWARDLY EXTENDING BEYOND SAID BUMPER RIM AND TERMINATING IN A ROLLER LIP EXTENDING AROUND SAID BUMPER RIM.
Claim 2
Dependent Claim
178 words
A UNITIZED DUAL LIP SEAL FOR A ROTARY SHAFT COMPRISING A CYLINDRICAL SEAL CASING HAVING AN INWARDLY DIRECTED RADIAL FLANGE, A SEAL MEMBER HAVING A MAIN BODY PORTION ADJOINING A PAIR OF DIAGONALLY DIVERGING SEALING LIPS AND HAVING AN INNER FLANGE PORTION AND AN OUTER FLANGE PORTION, SAID SEAL MEMBER BONDED TO SAID RADIAL FLANGE ALONG SAID INNER FLANGE PORTION AND SAID OUTER FLANGE PORTION, SAID OUTER FLANGE PORTION HAVING A CYLINDRICAL BUMPER RIM EXTENDING BEYOND ONE OF SAID SEALING LIPS, AND SAID INNER FLANGE PORTION HAVING AN INNER BUMPER MEMBER BONDED TO SAID SEAL CASE AND EXTENDING LONGITUDINALLY BEYOND THE OTHER OF SAID SEALING LIPS, A WEAR MEMBER HAVING A CYLINDRICAL PORTION FOR SAID SEALING LIPS TO SEAT ON AND HAVING AN OUTWARDLY DIRECTED RADIAL PORTION EXTENDING AXIALLY ADJACENT SAID INNER BUMPER MEMBER AND SPACED FROM SAID SEAL CASE, AND THRUST RING HAVING A CYLINDRICAL PART NESTED WITH THE CYLINDRICAL PORTION OF SAID WEAR MEMBER AND HAVING A RADIAL MEMBER OUTWARDLY EXTENDING BEYOND SAID BUMPER RIM AND TERMINATING IN A ROLLER LIP EXTENDING AROUND SAID BUMPER RIM.
References Cited (Backward Citations)
CA703022A
Cited
US3021161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |