US3108370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a face seal
Assignee: Federal Mogul Bower Bearings Inc
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Filing: 1959-11-16
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Granted: 1963-10-29
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Expires: 1979-11-16
Abstract
No abstract record available.
Inventors
- 👤 Vasalie L Peickii
- 👤 Joseph E Lepetich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:45
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36; F16J15/3464; F16J15/348; F16J15/3496; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49758; Y10T29/49826; Y10T29/49861; Y10T29/49885; Y10T29/4998; Y10T29/49982; Y10T29/49986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A METHOD FOR MAKING FACE SEALS FROM TWO ANNULI OF SHEET METAL COMPRISING THE STEPS OF FLANGING SAID ANNULI TO PROVIDE RADIAL FACES SUPPORTED BY AXIALLY EXTENDING PORTIONS THAT INCREASE THE SECTIONAL RIGIDITY TO A VALUE WITHIN PREDETERMINED LIMITS, SAID AXIALLY EXTENDING PORTIONS EXTENDING OUT FROM THE FACES IN OPPOSITE DIRECTIONS; COATING SAID FACES WITH AN ABRASION-RESISTANT AND LUBRICITYIMPARTING LAYER; FLATTENING SAID LAYER TO WITHIN FOUR LIGHT BANDS OF HELIUM LIGHT BY REMOVING A PORTION THEREOF WHILE IMPOSING AXIAL FORCES ON THE RADIAL FACES; AND HOLDING SAID FLATTENED FACES IN SEALING CONTACE WITH EACH OTHER BY AXIAL FORCES SUBSTANTIALLY DUPLICATING THOSE IMPOSED DURING FLATTENING.
Claim 2
Independent Claim
104 words
A METHOD FOR MAKING FACE SEALS FROM TWO ANNULI OF SHEET METAL COMPRISING THE STEPS OF FLANGING SAID ANNULI TO PROVIDE RADIAL FACES SUPPORTED BY AXIALLY EXTENDING PORTIONS THAT INCREASE THE SECTIONAL RIGIDITY TO A VALUE WITHIN PREDETERMINED LIMITS, SAID AXIALLY EXTENDING PORTIONS EXTENDING OUT FROM THE FACES IN OPPOSITE DIRECTIONS; COATING SAID FACES WITH AN ABRASION-RESISTANT AND LUBRICITYIMPARTING LAYER; FLATTENING SAID LAYER TO WITHIN FOUR LIGHT BANDS OF HELIUM LIGHT BY REMOVING A PORTION THEREOF WHILE IMPOSING AXIAL FORCES ON THE RADIAL FACES; AND HOLDING SAID FLATTENED FACES IN SEALING CONTACE WITH EACH OTHER BY AXIAL FORCES SUBSTANTIALLY DUPLICATING THOSE IMPOSED DURING FLATTENING.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |