Patent US3300838A successfully refreshed from Google Patents.
US3300838A
Expired / Lapsed
US
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Method of making bimetallic bearing material
Assignee: Clevite Industries Inc
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Filing: 1965-04-30
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Granted: 1967-01-31
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Expires: 1985-04-30
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Slater
- 👤 William F Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:10
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/14; B; B23; B23K; B23K20/00; B23K20/22; B23K20/227; B23K20/2275; F16C2220/00; F16C2220/80; F16C2220/82; F16C2223/00; F16C2223/02; F16C2223/08; F16C2223/30; F16C2223/32; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/94; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/49671; Y10T29/49673; Y10T29/49675; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12757
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
THE METHOD OF MAKING A BIMETALLIC BEARING WHICH COMPRISES THE STEPS OF: SELECTING A LAYER OF ALUMINUM ALLOY CONSISTING ESSENTIALLY OF SILICON 2% TO 8% CADMIUM .5% TO 4% AND THE BALANCE SUBSTANTIALLY ALUMINUM; SELECTING A BACKING LAYER OF LOW CARBON STEEL; CLEANING AND ROUGHENING THE BONDING INTERFACES OF SAID TWO LAYERS AND SUBSTANTIALLY IMMEDIATELY THEREAFTER PASSING SAID LAYERS TOGETHER THROUGH PRESSURE ROLLS HAVING A TEMPERATURE WITHIN THE RANGE 250-600*F. TO DIRECTLY BOND SAID LAYERS TOGETHER FACE TO FACE, THE PRESSURE OF SAID ROLLS ON SAID LAYERS BEING SUCH AS TO REDUCE THE THICKNESS OF THE ALUMINUM LAYER BETWEEN 40% AND 70% TO EFFECT A STRONG METALLURGI-
Claim 2
Independent Claim
107 words
THE METHOD OF MAKING A BIMETALLIC BEARING WHICH COMPRISES THE STEPS OF: SELECTING A LAYER OF ALUMINUM ALLOY CONSISTING ESSENTIALLY OF SILICON 2% TO 8% CADMIUM .5% TO 4% AND THE BALANCE SUBSTANTIALLY ALUMINUM; SELECTING A BACKING LAYER OF LOW CARBON STEEL; CLEANING AND ROUGHENING THE BONDING INTERFACES OF SAID TWO LAYERS AND SUBSTANTIALLY IMMEDIATELY THEREAFTER PASSING SAID LAYERS TOGETHER THROUGH PRESSURE ROLLS HAVING A TEMPERATURE WITHIN THE RANGE 250-600*F. TO DIRECTLY BOND SAID LAYERS TOGETHER FACE TO FACE, THE PRESSURE OF SAID ROLLS ON SAID LAYERS BEING SUCH AS TO REDUCE THE THICKNESS OF THE ALUMINUM LAYER BETWEEN 40% AND 70% TO EFFECT A STRONG METALLURGI-
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |