US4129016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal joint cross
Assignee: ROCKFORD ACROMATIC PRODUCTS Co
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Filing: 1977-08-25
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Granted: 1978-12-12
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Expires: 1997-08-25
Abstract
Abstract The cross includes four angularly spaced and outwardly projecting bearing assemblies each comprising a trunnion, an annular row of elongated rollers, and a bearing cup having a cavity which receives the rollers. The rollers of each bearing assembly are convexly crowned along their lengths so that forces transferred between the bearing cup and the trunnion are transmitted through each roller at a pressure area along the midportion thereof, the pressure area spreading or expanding as the forces increase. In a modified embodiment, the trunnion of each bearing assembly is convexly crowned.
Inventors
- 👤 Dean A. Olson, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:34
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/34; F16C23/00; F16C23/06; F16C23/08; F16C23/088; F16D; F16D3/00; F16D3/16; F16D3/26; F16D3/38; F16D3/40; F16D3/41; F16C2240/00; F16C2240/40; F16C2240/50; F16C2361/00; F16C2361/41
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
88 words
A universal joint cross having a central body, four trunnions spaced angularly around and extending outwardly from said body, each of said trunnions being of circular cross-section, a bearing cup telescoped over each trunnion, each of said bearing cups having a cavity of circular cross-section, and an annular row of elongated rollers located within each bearing cup and surrounding each trunnion, each of said rollers being of circular cross-section and each being convexly crowned in a longitudinal direction and symmetrically from its midpoint toward each of its ends.
Claim 2
Dependent Claim
88 words
A universal joint cross having a central body, four trunnions spaced angularly around and extending outwardly from said body, each of said trunnions being of circular cross-section, a bearing cup telescoped over each trunnion, each of said bearing cups having a cavity of circular cross-section, and an annular row of elongated rollers located within each bearing cup and surrounding each trunnion, each of said rollers being of circular cross-section and each being convexly crowned in a longitudinal direction and symmetrically from its midpoint toward each of its ends.
Claim 3
Dependent Claim
26 words
A universal joint cross as defined in claim 1 in which each trunnion is cylindrical and in which the cavity of each bearing cup is cylindrical.
Claim 4
Dependent Claim
28 words
A universal joint cross as defined in claim 1 in which the cavity of each bearing cup is cylindrical, each trunnion being convexly crowned in a longitudinal direction.
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) | 1981-12-11 | 1982-06-12 | 1982-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-11 | 1986-06-12 | 1986-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-11 | 1990-06-12 | 1990-12-12 | $7700.00 | Window Closed / Lapsed |