US2648580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum base bearing
Assignee: Motors Liquidation Co
•
Filing: 1947-11-26
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Granted: 1953-08-11
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Expires: 1967-11-26
Abstract
No abstract record available.
Inventors
- 👤 Jean A Lignian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:19
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/14; F16C33/12; F16C33/122; F16C33/124; F16C33/125; F16C17/00; F16C17/02; F16C17/022; F16C2204/00; F16C2204/20; F16C2204/30; F16C2220/00; F16C2220/60; F16C2223/00; F16C2223/30; F16C2223/70; F16C2240/00; F16C2240/40; F16C2240/42; F16C2240/60; F16C2360/00; F16C2360/22; F16C9/00; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/912; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49705; Y10T428/00; Y10T428/12; Y10T428/12451; Y10T428/12493; Y10T428/12736
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A BEARING FOR HEAVY DUTY WORK, COMPRISING IN COMBINATION; A BASE METAL HAVING GOOD FRICTIONAL CHARACTERISTICS AND TAKEN FROM THE CLASS CONSISTING OF ALUMINUM AND ALUMINUM ALLOYS AND HAVING A ROUGHENED SURFACE CONSTITUTING MINUTE GROOVES RUNNING TRANSVERSELY TO THE DIRECTION OF ROTATION OF THE BEARING, SAID GROOVES HAVING A DEPTH OF BETWEEN .0002" AND .001" AND BEING SPACED RADIALLY AT DISTANCES NOT GREATER THAN .010" FROM ONE ANOTHER, AND A LAYER OF SOFT BEARING METAL OVERLAYING SAID ROUGHENED SURFACE AND COMPRISING A CODEPOSITED LAYER TAKEN FROM THE CLASS CONSISTING ESSENTIALLY OF LEAD, TIN, ANTIMONY AND ALLOYS THEREOF, SAID LAYER HAVING A THICKNESS WITHIN THE RANGE OF A FLASH COATING TO .001" AND HAVING AN UNDULATING SURFACE APPROXIMATING AND OF LESS MAGNITUDE THAN THE UNDULATIONS OF THE GROOVED SURFACE.
Claim 2
Dependent Claim
128 words
A BEARING FOR HEAVY DUTY WORK, COMPRISING IN COMBINATION; A BASE METAL HAVING GOOD FRICTIONAL CHARACTERISTICS AND TAKEN FROM THE CLASS CONSISTING OF ALUMINUM AND ALUMINUM ALLOYS AND HAVING A ROUGHENED SURFACE CONSTITUTING MINUTE GROOVES RUNNING TRANSVERSELY TO THE DIRECTION OF ROTATION OF THE BEARING, SAID GROOVES HAVING A DEPTH OF BETWEEN .0002" AND .001" AND BEING SPACED RADIALLY AT DISTANCES NOT GREATER THAN .010" FROM ONE ANOTHER, AND A LAYER OF SOFT BEARING METAL OVERLAYING SAID ROUGHENED SURFACE AND COMPRISING A CODEPOSITED LAYER TAKEN FROM THE CLASS CONSISTING ESSENTIALLY OF LEAD, TIN, ANTIMONY AND ALLOYS THEREOF, SAID LAYER HAVING A THICKNESS WITHIN THE RANGE OF A FLASH COATING TO .001" AND HAVING AN UNDULATING SURFACE APPROXIMATING AND OF LESS MAGNITUDE THAN THE UNDULATIONS OF THE GROOVED SURFACE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |