US3389921A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal adapted for a link belt assembly
Assignee: Gits Bros Mfg Co
•
Filing: 1964-06-08
•
Granted: 1968-06-25
•
Expires: 1984-06-08
Abstract
No abstract record available.
Inventors
- 👤 Bruno V Lojkutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:03
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/3456
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A SEAL RING WHICH COMPRISES, A FLAT METAL WASHER RING HAVING A SMOOTH SEALING FACE ADAPTED TO RIDE ON A PART TO BE SEALED, AN EASTOMERIC RING BONDED TO THE OPPOSITE FACE OF SAID WASHER RING, SAID ELASTOMERIC RING IN ITS FREE STATE HAVING INNER AND OUTER PERIPHERIES SUBSTANTIALLY FLUSH WITH THE INNER AND OUTER PERIPHERIES OF SAID WASHER RING, SAID ELASTOMERIC RING HAVING A CROWNED EXPOSED FACE CONTOURED TO SLOPE MORE ACUTELY FROM ITS APEX TO ONE OF SAID PERIPHERIES THAN TO THE OTHER OF SAID PERIPHERIES, SAID ONE OF SAID PERIPHERIES BEING AXIALLY THINNER THAN THE OTHER OF SAID PERIPHERIES, AND SAID ELASTOMERIC RING WHEN FLATTENED UNDER AXIAL LOAD HAVING THE PERIPHERY AT THE TERMINAL END OF THE ACUTE SLOPING CROWNED FACE PORTION EXTENDED BEYOND THE METAL WASHER RING, SAID EXTENDED PERIPHERY BEING ADAPTED TO SEAT ON AN ADJACENT MEMBER TO CARRY THE METAL WASHER RING WHILE THE FLATTENED ELASTOMERIC RING URGES THE METAL WASHER RING AGAINST A PART TO BE SEALED.
Claim 2
Dependent Claim
164 words
A SEAL RING WHICH COMPRISES, A FLAT METAL WASHER RING HAVING A SMOOTH SEALING FACE ADAPTED TO RIDE ON A PART TO BE SEALED, AN EASTOMERIC RING BONDED TO THE OPPOSITE FACE OF SAID WASHER RING, SAID ELASTOMERIC RING IN ITS FREE STATE HAVING INNER AND OUTER PERIPHERIES SUBSTANTIALLY FLUSH WITH THE INNER AND OUTER PERIPHERIES OF SAID WASHER RING, SAID ELASTOMERIC RING HAVING A CROWNED EXPOSED FACE CONTOURED TO SLOPE MORE ACUTELY FROM ITS APEX TO ONE OF SAID PERIPHERIES THAN TO THE OTHER OF SAID PERIPHERIES, SAID ONE OF SAID PERIPHERIES BEING AXIALLY THINNER THAN THE OTHER OF SAID PERIPHERIES, AND SAID ELASTOMERIC RING WHEN FLATTENED UNDER AXIAL LOAD HAVING THE PERIPHERY AT THE TERMINAL END OF THE ACUTE SLOPING CROWNED FACE PORTION EXTENDED BEYOND THE METAL WASHER RING, SAID EXTENDED PERIPHERY BEING ADAPTED TO SEAT ON AN ADJACENT MEMBER TO CARRY THE METAL WASHER RING WHILE THE FLATTENED ELASTOMERIC RING URGES THE METAL WASHER RING AGAINST A PART TO BE SEALED.
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) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |