Patent US5297447A successfully refreshed from Google Patents.
US5297447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steering axle for vehicles, particularly for agricultural tractors
Assignee: Carraro SpA
•
Filing: 1992-11-19
•
Granted: 1994-03-29
•
Expires: 2012-11-19
Abstract
Abstract A steering axle includes a beam pivotally mounted on a load-bearing structure of a vehicle. A steering actuator is mounted on the beam and includes a casing which provides a journal formation for pivotally mounting the beam on the load-bearing structure.
Inventors
- 👤 Gianni Massaccesi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:58
CPC Classifications
B; B60; B60B; B60B35/00; B60B35/003; B60B35/12; B60B35/16; B60B35/163; B60G; B60G9/00; B60G9/02; B60K; B60K17/00; B60K17/30; B60K17/303; B62; B62D; B62D7/00; B60B2310/00; B60B2310/30; B60B2310/305; B60G2200/00; B60G2200/30; B60G2200/32; B60G2200/322; B60G2204/00; B60G2204/40; B60G2204/418; B60Y; B60Y2200/00; B60Y2200/20; B60Y2200/22; B60Y2200/221; F; F16; F16H; F16H48/00; F16H48/06; F16H48/08; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186; Y10T74/2188
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
55 words
A steering axle for a vehicle comprising a beam housing a steering mechanism and a transmission therein, steering actuator means attached to said beam and operably connected to said steering mechanism, said actuator means having a case with an external surface for pivotally mounting said actuator means and attached axle in a load-bearing vehicle structure.
Claim 2
Dependent Claim
55 words
A steering axle for a vehicle comprising a beam housing a steering mechanism and a transmission therein, steering actuator means attached to said beam and operably connected to said steering mechanism, said actuator means having a case with an external surface for pivotally mounting said actuator means and attached axle in a load-bearing vehicle structure.
Claim 3
Dependent Claim
24 words
A steering axle as set forth in claim 1, further comprising axial and radial bearing means mounted on said external surface of said case.
Claim 4
Dependent Claim
27 words
A steering axle as set forth in claim 2, wherein said axial and radial bearing means are comprised of a flat washer and a cylindrical washer, respectively.
Claim 5
Dependent Claim
46 words
A steering axle as set forth in claim 1, further comprising collar means attached to said beam in co-axial alignment with said case on an opposite side of said beam from said case for pivotally mounting said collar and attached axle in a load-bearing vehicle structure.
Claim 6
Dependent Claim
20 words
A steering axle as set forth in claim 4, further comprising axial and radial bearing means mounted on said collar.
Claim 7
Dependent Claim
27 words
A steering axle as set forth in claim 5, wherein said axial and radial bearing means are comprised of a flat washer and a cylindrical washer, respectively.
Claim 8
Dependent Claim
68 words
A steering axle as set forth in claim 1, wherein said steering actuator means is comprised of a hydraulic motor having a shaft extending into said beam, a gear slidably mounted on said shaft in operative meshing engagement with said gear mechanism and elastic means disposed between said gear and said case for urging said gear away from said case into said meshing engagement with said steering mechanism.
Claim 9
Dependent Claim
25 words
A steering axle as set forth in claim 7, further comprising supply conduits extending through said casing for supplying hydraulic fluid to said hydraulic motor.
References Cited (Backward Citations)
US2651216A
Cited
DE1172124B
Cited
FR1473517A
Cited
US3905089A
Cited
US4543853A
Cited
US4515380A
Cited
US4504074A
Cited
JPS601075A
Cited
US4652011A
Cited
US4733578A
Cited
WO1989005742A1
Cited
US4914800A
Cited
GB2223068A
Cited
US5041069A
Cited
US5094655A
Cited
US5197561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-03-28 | 1997-09-27 | 1998-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-28 | 2001-09-27 | 2002-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-28 | 2005-09-27 | 2006-03-29 | $7700.00 | Window Closed / Lapsed |