US3092957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of providing controlled interference fit of a chain pin in a pin plate
Assignee: Chain Belt Co
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Filing: 1959-09-17
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Granted: 1963-06-11
•
Expires: 1979-09-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Alfred F Larkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:39
CPC Classifications
F; F16; F16G; F16G13/00; F16G13/02; F16G13/06; B; B21; B21L; B21L9/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49826; Y10T29/49945
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
201 words
THE METHOD OF CHAIN CONSTRUCTION PROVIDING HARDENED FATIGUE-RESISTANT AREAS DEFINING SPACED ROUND HOLES OF A PIN PLATE AND RELATIVELY ELASTIC RIDGES AT ONE SIDE OF THE PLATE TO BIAS OR HOLD RESPECTIVE ROUND PINS TOWARD OR AGAINST THE LOAD BEARING AREAS OF THE HOLES NEARER THE RESPECTIVE ENDS OF THE PLATE, WHICH METHOD COMPRISES FORMING THE HOLES TO A GIVEN SIZE LESS THAN THAT OF THE PIN, HEAT TREATING THE PLATE AND THEREAFTER ENLARGING THE HOLES TO A SIZE AT LEAST EQUAL TO THAT OF THE PINS BY FORCING A HARDENED BALL OR DRIFT OF A GREATER SIZE THAN SAID GIVEN HOLE SIZE THROUGH THE HOLES AND FORMING LIPS PROJECTING FROM ONE SIDE OF THE PLATE AND EXTENDING AROUND THE END OF EACH HOLE FROM WHICH THE BALL OR DRIFT EMERGES, COMPRESSING THE PLATE BETWEEN FLAT DIES AND THEREBY FORCING BACK INTO EACH HOLE THAT PART OF EACH LIP WHICH IS NEARER THE CENTER OF THE PLATE AND OPPOSITE THE LOAD-BEARING AREA OF THE RESPECTIVE HOLE TO FORM AN ELASTIC RIDGE PROJECTING INTO THE HOLE, AND PUSHING THE PINS INTO THE HOLES AND PARTIALLY THEREBY PUSHING OUT SAID RIDGES WHICH THEREBY SERVE TO HOLD THE PINS AGAINST THE RESPECTIVE LOAD-BEARING AREAS.
Claim 2
Independent Claim
201 words
THE METHOD OF CHAIN CONSTRUCTION PROVIDING HARDENED FATIGUE-RESISTANT AREAS DEFINING SPACED ROUND HOLES OF A PIN PLATE AND RELATIVELY ELASTIC RIDGES AT ONE SIDE OF THE PLATE TO BIAS OR HOLD RESPECTIVE ROUND PINS TOWARD OR AGAINST THE LOAD BEARING AREAS OF THE HOLES NEARER THE RESPECTIVE ENDS OF THE PLATE, WHICH METHOD COMPRISES FORMING THE HOLES TO A GIVEN SIZE LESS THAN THAT OF THE PIN, HEAT TREATING THE PLATE AND THEREAFTER ENLARGING THE HOLES TO A SIZE AT LEAST EQUAL TO THAT OF THE PINS BY FORCING A HARDENED BALL OR DRIFT OF A GREATER SIZE THAN SAID GIVEN HOLE SIZE THROUGH THE HOLES AND FORMING LIPS PROJECTING FROM ONE SIDE OF THE PLATE AND EXTENDING AROUND THE END OF EACH HOLE FROM WHICH THE BALL OR DRIFT EMERGES, COMPRESSING THE PLATE BETWEEN FLAT DIES AND THEREBY FORCING BACK INTO EACH HOLE THAT PART OF EACH LIP WHICH IS NEARER THE CENTER OF THE PLATE AND OPPOSITE THE LOAD-BEARING AREA OF THE RESPECTIVE HOLE TO FORM AN ELASTIC RIDGE PROJECTING INTO THE HOLE, AND PUSHING THE PINS INTO THE HOLES AND PARTIALLY THEREBY PUSHING OUT SAID RIDGES WHICH THEREBY SERVE TO HOLD THE PINS AGAINST THE RESPECTIVE LOAD-BEARING AREAS.
References Cited (Backward Citations)
US664481A
Cited
FR541426A
Cited
CH120556A
Cited
US1722861A
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US2187661A
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US2424087A
Cited
US2517497A
Cited
US2690678A
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US2869379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |