Patent US2756607A successfully refreshed from Google Patents.
US2756607A
Expired / Lapsed
US
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Gear wheel and method of making
Assignee: Westinghouse Electric Corp
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Filing: 1951-08-29
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Granted: 1956-07-31
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Expires: 1971-08-29
Abstract
No abstract record available.
Inventors
- 👤 Norman L Mochel
- 👤 Short Ira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:07
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49462; Y10T29/49467; Y10T29/4948; Y10T29/49826; Y10T29/49885; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19893; Y10T74/19935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN A FABRICATED GEAR WHEEL, AN OUTER ANNULAR RIM PORTION FORMED OF LOW-ALLOY, HIGH-CARBON STEEL HAVING A BRINELL HARDNESS RANGING FROM ABOUT 321 TO MORE THAN 400, SAID RIM PORTION HAVING AN INNER SURFACE, AN ANNULAR PAD PORTION OF RELATIVELY SOFT, LOW-CARBON STEEL WELD DEPOSITS INTEGRALLY FORMED ON SAID INNER SURFACE OF SAID RIM PORTION, THE ENTIRE INTERFACE BETWEEN SAID INNER SURFACE OF THE RIM PORTION AND THE OUTER SURFACE OF SAID PAD PORTION BEING AUTOGENOUSLY CONNECTED, SAID RIM PORTION WITH SAID PAD PORTION BEING ADAPTED FOR HEAT TREATMENT TO ESTABLISH THE DESIRED RIM HARDNESS, A HUB PORTION, AN ANNULAR WEB PORTION OF STEEL HAVING WELDABLE PROPERTIES AND CARRIED BY SAID HUB PORTION AND HAVING A PERIPHERAL SURFACE ENGAGING SAID LOW-CARBON STEEL PAD PORTION, AND WELD DEPOSITS AUTOGENOUSLY CONNECTING SAID WEB PORTION TO SAID PAD PORTION.
Claim 2
Dependent Claim
136 words
IN A FABRICATED GEAR WHEEL, AN OUTER ANNULAR RIM PORTION FORMED OF LOW-ALLOY, HIGH-CARBON STEEL HAVING A BRINELL HARDNESS RANGING FROM ABOUT 321 TO MORE THAN 400, SAID RIM PORTION HAVING AN INNER SURFACE, AN ANNULAR PAD PORTION OF RELATIVELY SOFT, LOW-CARBON STEEL WELD DEPOSITS INTEGRALLY FORMED ON SAID INNER SURFACE OF SAID RIM PORTION, THE ENTIRE INTERFACE BETWEEN SAID INNER SURFACE OF THE RIM PORTION AND THE OUTER SURFACE OF SAID PAD PORTION BEING AUTOGENOUSLY CONNECTED, SAID RIM PORTION WITH SAID PAD PORTION BEING ADAPTED FOR HEAT TREATMENT TO ESTABLISH THE DESIRED RIM HARDNESS, A HUB PORTION, AN ANNULAR WEB PORTION OF STEEL HAVING WELDABLE PROPERTIES AND CARRIED BY SAID HUB PORTION AND HAVING A PERIPHERAL SURFACE ENGAGING SAID LOW-CARBON STEEL PAD PORTION, AND WELD DEPOSITS AUTOGENOUSLY CONNECTING SAID WEB PORTION TO SAID PAD PORTION.
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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) | 1959-07-31 | 1960-01-30 | 1960-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-31 | 1964-01-30 | 1964-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-31 | 1968-01-30 | 1968-07-31 | $7700.00 | Window Closed / Lapsed |