US3147026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stamped steering knuckles and brake backing plate weldment
Assignee: AO Smith Corp
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Filing: 1961-12-15
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Granted: 1964-09-01
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Expires: 1981-12-15
Abstract
No abstract record available.
Inventors
- 👤 Irene G Schilberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:47
CPC Classifications
B; B62; B62D; B62D7/00; B62D7/18; F; F16; F16D; F16D51/00; F16D2051/001; F16D2051/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN AN INDEPENDENT WHEEL SUSPENSION OF A VEHICLE HAVING A WHEEL SPINDLE AND UPPER AND LOWER CONTROL ARMS, AN UPRIGHT SHEET METAL STEERING KNUCKLE HAVING AN OUTWARDLY OPENING GENERALLY U-SHAPED CROSS-SECTIONAL AREA AND FORMED WITH AN APERTURED AND FLANGED CENTER PORTION DEFINING A CYLINDRICAL BEARING RECEIVING THE SPINDLE, SAID KNUCKLE HAVING INWARDLY BENT END PORTIONS PIVOTALLY CONNECTED TO CORRESPONDING UPPER AND LOWER CONTROL ARMS, SAID END PORTIONS PROVIDED WITH METAL PLUGS AND CONNECTED TO SAID CONTROL ARMS THROUGH SAID PLUGS, AND A FLAT SHEET METAL BRAKE DRUM BACKING PLATE WELDED AGAINST THE OUTER FACE OF SAID STEERING KNUCKLE BETWEEN SAID END PORTIONS TO PROVIDE A HIGHLY RIGID AND STRONG COMPOSITE STRUCTURE.
Claim 2
Dependent Claim
111 words
IN AN INDEPENDENT WHEEL SUSPENSION OF A VEHICLE HAVING A WHEEL SPINDLE AND UPPER AND LOWER CONTROL ARMS, AN UPRIGHT SHEET METAL STEERING KNUCKLE HAVING AN OUTWARDLY OPENING GENERALLY U-SHAPED CROSS-SECTIONAL AREA AND FORMED WITH AN APERTURED AND FLANGED CENTER PORTION DEFINING A CYLINDRICAL BEARING RECEIVING THE SPINDLE, SAID KNUCKLE HAVING INWARDLY BENT END PORTIONS PIVOTALLY CONNECTED TO CORRESPONDING UPPER AND LOWER CONTROL ARMS, SAID END PORTIONS PROVIDED WITH METAL PLUGS AND CONNECTED TO SAID CONTROL ARMS THROUGH SAID PLUGS, AND A FLAT SHEET METAL BRAKE DRUM BACKING PLATE WELDED AGAINST THE OUTER FACE OF SAID STEERING KNUCKLE BETWEEN SAID END PORTIONS TO PROVIDE A HIGHLY RIGID AND STRONG COMPOSITE STRUCTURE.
References Cited (Backward Citations)
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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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |