Patent US3852872A successfully refreshed from Google Patents.
US3852872A
Expired / Lapsed
US
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Method of making a knuckle assembly
Assignee: Dayton Walther Corp
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Filing: 1973-09-13
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Granted: 1974-12-10
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Expires: 1993-09-13
Abstract
Abstract A knuckle assembly in which the upper knuckle, steering arm and brake rails are formed as a one piece casting and the spindle and lower knuckle are formed as in integral forging. The spindle is then shrink fitted into a spindle opening machined in the casting with the lower knuckle positioned correctly relative to the upper knuckle and then finished to receive a lower ball joint.
Inventors
- 👤 C Afanador
- 👤 R Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:50
CPC Classifications
B; B23; B23P; B23P11/00; B23P11/02; B62; B62D; B62D7/00; B62D7/18; B60; B60B; B60B2310/00; B60B2310/20; B60B2310/208; B60B2310/228; B60B2310/234; B60B2310/30; B60B2310/316; B60B2310/50; B60B2310/54; B60B2310/60; B60B2310/612; B60B2360/00; B60B2360/14; B60B2360/147; B60B2900/00; B60B2900/10; B60B2900/113; B60G; B60G2200/00; B60G2200/40; B60G2200/46; B60G2200/462; B60G2200/4622; B60G2206/00; B60G2206/01; B60G2206/50; Y; Y10; Y10S; Y10S29/00; Y10S29/035; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
70 words
A method of forming a knuckle assembly comprising: a. casting a one piece base member having a first knuckle projecting outwardly thereof, b. forming an opening through said first knuckle, c. forming a spindle opening through said castinG with the axis thereof disposed in angular intersecting relationship with said opening through said first knuckle, d. forging an integral spindle and knuckle, and e. fixing said spindle in said spindle opening.
Claim 2
Independent Claim
70 words
A method of forming a knuckle assembly comprising: a. casting a one piece base member having a first knuckle projecting outwardly thereof, b. forming an opening through said first knuckle, c. forming a spindle opening through said castinG with the axis thereof disposed in angular intersecting relationship with said opening through said first knuckle, d. forging an integral spindle and knuckle, and e. fixing said spindle in said spindle opening.
Claim 3
Dependent Claim
24 words
The method of claim 1 further comprising: a. forming an opening in said second knuckle in opposition to said opening in said first knuckle.
Claim 4
Dependent Claim
26 words
The method of claim 1 wherein said step of fixing said spindle in said spindle opening comprises: a. shrink fitting said spindle into said spindle opening.
Claim 5
Independent Claim
159 words
The method of forming a knuckle assembly comprising: a. casting a one piece base member having: i. an upper knuckle projecting outwardly thereof, ii. a plurality of dust shield mounting bosses projecting from an opposite side thereof, iii. upper and lower brake rails, and iv. a steering arm projecting from said casting oppositely to said brake rails, b. drilling a steering stop mounting opening into said casting, c. drilling a ball joint opening through said upper knuckle, d. forming a spindle opening through said casting in spaced, substantially parallel relationship to said steering stop mounting opening, e. forging an integral spindle and knuckle, having: i. a spindle, and ii. a lower knuckle formed integrally on one end of said spindle, f. hardening and tempering said spindle, g. shrink fitting said spindle in said spindle opening, and h. drilling said lower knuckle to provide a ball joint opening therein in opposition to said ball joint opening in said upper knuckle.
Claim 6
Independent Claim
159 words
The method of forming a knuckle assembly comprising: a. casting a one piece base member having: i. an upper knuckle projecting outwardly thereof, ii. a plurality of dust shield mounting bosses projecting from an opposite side thereof, iii. upper and lower brake rails, and iv. a steering arm projecting from said casting oppositely to said brake rails, b. drilling a steering stop mounting opening into said casting, c. drilling a ball joint opening through said upper knuckle, d. forming a spindle opening through said casting in spaced, substantially parallel relationship to said steering stop mounting opening, e. forging an integral spindle and knuckle, having: i. a spindle, and ii. a lower knuckle formed integrally on one end of said spindle, f. hardening and tempering said spindle, g. shrink fitting said spindle in said spindle opening, and h. drilling said lower knuckle to provide a ball joint opening therein in opposition to said ball joint opening in said upper knuckle.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |