US5197755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Independent wheel suspension system for vehicles
Assignee: Individual
•
Filing: 1992-02-10
•
Granted: 1993-03-30
•
Expires: 2012-02-10
Abstract
Abstract A coil spring suspension system that differs from conventional prior art coil spring suspensions in that an additional A-arm is used, the additional A-arm being vertically oriented and having its leg ends attached to the leg ends of the horizontally oriented upper A-arm. The vertically oriented A-arm has its leg ends pivotally attached to the vehicle frame or body with the leg ends of the upper horizontally oriented A-arm. The apex of the vertically oriented A-arm lies in or near the plane of the lower horizontally oriented A-arm. A coil spring is used, having a substantially horizontally oriented longitudinal axis, with one end of the coil spring secured to the horizontally oriented lower A-arm near the apex of the horizontally oriented lower A-arm and with the other end of the coil spring attached to or near to the apex of the vertically oriented A-arm.
Inventors
- 👤 Dallas W. Quick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:32
CPC Classifications
B; B60; B60G; B60G17/00; B60G17/02; B60G17/021; B60G11/00; B60G11/14; B60G11/16; B60G3/00; B60G3/18; B60G3/20; B60G2204/00; B60G2204/10; B60G2204/12; B60G2204/124; B60G2204/1244
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
361 words
An independent wheel suspension system for a vehicle comprising: a) an upper A-arm comprising a pair of legs attached together at one end of each leg to form an apex with the opposite leg ends spaced apart, the upper A-arm lying in an approximately horizontal plane; and b) a lower A-arm comprising a pair of legs attached together at one end of each leg to form an apex with the opposite leg ends spaced apart, the upper A-arm lying in an approximately horizontal plane and lying below and aligned with the upper A-arm; and c) a vertically oriented upright member having an upper end and a lower end, the upper end being swivelably attached to the apex of the upper A-arm and the lower end being swivelably attached to the apex of the lower A-arm; and d) a horizontally oriented wheel spindle attached to the vertically oriented upright; and e) the opposite leg ends of the upper A-arm being pivotally attached to a vehicle frame and the opposite leg ends of the lower A-arm being pivotally attached to the vehicle frame below the opposite leg ends of the upper A-arm; and f) a vertically oriented A-arm comprising a pair of legs attached together at one end of each leg to form an apex with the opposite leg ends spaced apart, the vertically oriented A-arm lying in an approximately vertically oriented plane, the opposite leg ends of the vertically oriented A-arm being attached to the opposite leg ends of the upper A-arm so that the opposite leg ends of the vertically oriented A-arms are pivotally attached to the vehicle frame and rigidly attached to the opposite leg ends of the upper A-arm, and further having the apex of the vertically oriented A-arm lying in or near the approximately horizontal plane of the lower A-arm; and g) a coil spring having a substantially horizontally oriented longitudinal axis and having a first end and a second end, the first end being attached to the lower A-arm near the apex of the lower A-arm and the second end being attached to the vertically oriented A-arm at or near the apex of the vertically oriented A-arm.
Claim 2
Dependent Claim
361 words
An independent wheel suspension system for a vehicle comprising: a) an upper A-arm comprising a pair of legs attached together at one end of each leg to form an apex with the opposite leg ends spaced apart, the upper A-arm lying in an approximately horizontal plane; and b) a lower A-arm comprising a pair of legs attached together at one end of each leg to form an apex with the opposite leg ends spaced apart, the upper A-arm lying in an approximately horizontal plane and lying below and aligned with the upper A-arm; and c) a vertically oriented upright member having an upper end and a lower end, the upper end being swivelably attached to the apex of the upper A-arm and the lower end being swivelably attached to the apex of the lower A-arm; and d) a horizontally oriented wheel spindle attached to the vertically oriented upright; and e) the opposite leg ends of the upper A-arm being pivotally attached to a vehicle frame and the opposite leg ends of the lower A-arm being pivotally attached to the vehicle frame below the opposite leg ends of the upper A-arm; and f) a vertically oriented A-arm comprising a pair of legs attached together at one end of each leg to form an apex with the opposite leg ends spaced apart, the vertically oriented A-arm lying in an approximately vertically oriented plane, the opposite leg ends of the vertically oriented A-arm being attached to the opposite leg ends of the upper A-arm so that the opposite leg ends of the vertically oriented A-arms are pivotally attached to the vehicle frame and rigidly attached to the opposite leg ends of the upper A-arm, and further having the apex of the vertically oriented A-arm lying in or near the approximately horizontal plane of the lower A-arm; and g) a coil spring having a substantially horizontally oriented longitudinal axis and having a first end and a second end, the first end being attached to the lower A-arm near the apex of the lower A-arm and the second end being attached to the vertically oriented A-arm at or near the apex of the vertically oriented A-arm.
Claim 3
Dependent Claim
20 words
An independent wheel suspension system for a vehicle according to claim 1 that supports a front wheel of the vehicle.
Claim 4
Dependent Claim
20 words
An independent wheel suspension system for a vehicle according to claim 1 that supports a rear wheel of the vehicle.
Claim 5
Dependent Claim
20 words
An independent wheel suspension system for a vehicle according to claim 1 that supports a steerable wheel of the vehicle.
Claim 6
Dependent Claim
20 words
An independent wheel suspension system for a vehicle according to claim 1 that supports a driven wheel of the vehicle.
Claim 7
Dependent Claim
21 words
An independent wheel suspension system for a vehicle according to claim 1 that supports a steerable driven wheel of the vehicle.
References Cited (Backward Citations)
DE745153C
Cited
GB666852A
Cited
US2836413A
Cited
FR2227143A1
Cited
US4159128A
Cited
US4662467A
Cited
EP0348214A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-03-29 | 1996-09-28 | 1997-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-29 | 2000-09-28 | 2001-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-29 | 2004-09-28 | 2005-03-30 | $7700.00 | Window Closed / Lapsed |