US3308524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a die bushing with a replaceable liner
Assignee: Enviri Corp
•
Filing: 1964-01-22
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Granted: 1967-03-14
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Expires: 1984-01-22
Abstract
No abstract record available.
Inventors
- 👤 Moyer Robert Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:14
CPC Classifications
B; B21; B21D; B21D37/00; B21D37/10; F; F16; F16C; F16C29/00; F16C29/02; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/08; F16C2220/00; F16C2220/80; F16C2220/82; F16C2223/00; F16C2223/30; F16C2223/70; F16C2226/00; F16C2226/30; F16C2226/32; F16C2226/34; F16C2322/00; F16C2322/14; F16C33/12; F16C33/121; F16C33/14; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/49677; Y10T29/49764; Y10T29/49778; Y10T29/4978; Y10T29/49826; Y10T29/49885; Y10T29/49908; Y10T29/49938; Y10T29/4994; Y10T29/49945
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A METHOD OF FABRICATING A SUBSTANTIALLY CYLINDRICAL DIE BUSHING CONTAINING A LINER IN AN AXIAL BORE THEREOF COMPRISING THE STEPS OF FORMING A CYLINDRICAL LINER MEMBER OF BIMETALLIC LAMINATE MATERIAL HAVING AN OUTER STEEL SHELL AND AN INNER LAYER OF BEARING METAL WHICH IS SOFTER THAN SAID STEEL, COATING THE OUTER SURFACE OF THE OUTER STEEL SHELL WITH A LAYER OF NON-FERROUS METAL HAVING A THICKNESS IN THE ORDER OF FIVE TEN-THOUSANDTHS OF AN INCH, PLACING SAID LINER MEMBER ON A GAGE POST HAVING A STANDARD OUTSIDE DIAMETER, THE INTERNAL DIAMETER OF SAID LINER MEMBER BEING LARGER THAN THE OUTSIDE DIAMETER OF SAID POST TO A LIMIT OF .04% OF THE OUTSIDE DIAMETER OF SAID POST, FORCING SAID LINER MEMBER INTO SAID BORE OF SAID BUSHING BY MEANS OF SAID GAGE POST WHEREBY SAID LAYER OF NON-FERROUS METAL IS CAUSED TO CONFORM TO ANY VARIATIONS PRESENT IN SAID BORE, REMOVING SAID GAGE POST AND INSERTING LOCKING MEANS AT EACH END OF SAID LINER FOR RETAINING SAID LINER IN SAID BUSHING.
Claim 2
Independent Claim
170 words
A METHOD OF FABRICATING A SUBSTANTIALLY CYLINDRICAL DIE BUSHING CONTAINING A LINER IN AN AXIAL BORE THEREOF COMPRISING THE STEPS OF FORMING A CYLINDRICAL LINER MEMBER OF BIMETALLIC LAMINATE MATERIAL HAVING AN OUTER STEEL SHELL AND AN INNER LAYER OF BEARING METAL WHICH IS SOFTER THAN SAID STEEL, COATING THE OUTER SURFACE OF THE OUTER STEEL SHELL WITH A LAYER OF NON-FERROUS METAL HAVING A THICKNESS IN THE ORDER OF FIVE TEN-THOUSANDTHS OF AN INCH, PLACING SAID LINER MEMBER ON A GAGE POST HAVING A STANDARD OUTSIDE DIAMETER, THE INTERNAL DIAMETER OF SAID LINER MEMBER BEING LARGER THAN THE OUTSIDE DIAMETER OF SAID POST TO A LIMIT OF .04% OF THE OUTSIDE DIAMETER OF SAID POST, FORCING SAID LINER MEMBER INTO SAID BORE OF SAID BUSHING BY MEANS OF SAID GAGE POST WHEREBY SAID LAYER OF NON-FERROUS METAL IS CAUSED TO CONFORM TO ANY VARIATIONS PRESENT IN SAID BORE, REMOVING SAID GAGE POST AND INSERTING LOCKING MEANS AT EACH END OF SAID LINER FOR RETAINING SAID LINER IN SAID BUSHING.
References Cited (Backward Citations)
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US2646824A
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US2855666A
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US3039829A
Cited
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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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |