US3149405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making oilless bearings
Assignee: Individual
•
Filing: 1961-11-24
•
Granted: 1964-09-22
•
Expires: 1981-11-24
Abstract
No abstract record available.
Inventors
- 👤 William G Dolan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:17
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/24; F16C33/06; F16C33/10; F16C33/1095; F16C33/14; F16C17/00; F16C17/10; F16C2202/00; F16C2202/50; F16C2202/52; F16C2220/00; F16C2220/02; F16C2220/60; F16C2220/62; F16C2220/80; F16C2220/82; F16C2226/00; F16C2226/30; F16C2226/40; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/49702
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A METHOD OF MAKING AN OILLESS BEARING, COMPRISING THE STEPS OF: FORMING A HARD UNITARY BODY OF GRAPHITE LUBRICATING MATERIAL HAVING A SUBSTANTIALLY PLANAR LUBRICATING SURFACE ON ONE SIDE THEREOF AND A BODY PORTION AWAY FROM SAID LUBRICATING SURFACE WHICH HAS A CROSS-SECTIONAL AREA GREATER THAN SAID LUBRICATING SURFACE IN A PLANE PARALLEL TO THE PLANE OF THE LUBRICATING SURFACE, SEATING SAID BODY OF LUBRICATING MATERIAL ON A MOLD FORM COMPRISED OF DEFORMABLE MATERIAL OF THE CHARACTER OF MOLDING SAND OR THE LIKE, PRESSING SAID LUBRICATING SURFACE SLIGHTLY INTO SAID DEFORMABLE MATERIAL, SECURING SAID BODY TO SAID MOLD FORM, FORMING A MOLD CAVITY OVER SAID MOLD FORM AND AROUND SAID UNITARY BODY OF LUBRICATING MATERIAL, AND POURING MOLTEN BEARING METAL INTO SAID CAVITY TO FORM A BEARING HAVING A BEARING SURFACE WHICH INCLUDES SAID LUBRICATING SURACE SLIGHTLY RAISED THEREFROM, WHEREBY SAID UNITARY BODY OF GRPAHITE LUBRICATING MATERIAL IS SECURELY RETAINED IN SAID BEARING.
Claim 2
Independent Claim
153 words
A METHOD OF MAKING AN OILLESS BEARING, COMPRISING THE STEPS OF: FORMING A HARD UNITARY BODY OF GRAPHITE LUBRICATING MATERIAL HAVING A SUBSTANTIALLY PLANAR LUBRICATING SURFACE ON ONE SIDE THEREOF AND A BODY PORTION AWAY FROM SAID LUBRICATING SURFACE WHICH HAS A CROSS-SECTIONAL AREA GREATER THAN SAID LUBRICATING SURFACE IN A PLANE PARALLEL TO THE PLANE OF THE LUBRICATING SURFACE, SEATING SAID BODY OF LUBRICATING MATERIAL ON A MOLD FORM COMPRISED OF DEFORMABLE MATERIAL OF THE CHARACTER OF MOLDING SAND OR THE LIKE, PRESSING SAID LUBRICATING SURFACE SLIGHTLY INTO SAID DEFORMABLE MATERIAL, SECURING SAID BODY TO SAID MOLD FORM, FORMING A MOLD CAVITY OVER SAID MOLD FORM AND AROUND SAID UNITARY BODY OF LUBRICATING MATERIAL, AND POURING MOLTEN BEARING METAL INTO SAID CAVITY TO FORM A BEARING HAVING A BEARING SURFACE WHICH INCLUDES SAID LUBRICATING SURACE SLIGHTLY RAISED THEREFROM, WHEREBY SAID UNITARY BODY OF GRPAHITE LUBRICATING MATERIAL IS SECURELY RETAINED IN SAID BEARING.
References Cited (Backward Citations)
US889971A
Cited
US1045908A
Cited
US1200245A
Cited
US1266381A
Cited
US2305001A
Cited
US2350854A
Cited
US2728619A
Cited
US2894792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |