US3741329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chassis suspension on vehicle frame
Assignee: Deutz Allis Corp
•
Filing: 1971-05-18
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Granted: 1973-06-26
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Expires: 1991-05-18
Abstract
Abstract A suspension system including a vehicle main frame mounted unsprung on a plurality of wheels carrying a spring suspended chassis defining an operator station and engine hood for dampening vibration and shock transmitted from the frame to the chassis.
Inventors
- 👤 O Davis
- 👤 R Haupt
- 👤 M Slosiarek
- 👤 K Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:31
CPC Classifications
B; B60; B60G; B60G99/00; B60G99/002; B60G15/00; B60G15/02; B62; B62D; B62D33/00; B62D33/06; B62D33/0604
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
168 words
A tractor comprising, a main frame including an engine and drive assembly mounted unsprung on a plurality of wheels for following the contour of the terrain, means for attaching and controlling implement position, a vehicle chassis substantially the length of the vehicle defining substantial mass including an operator platform and seat, a steering wheel and control levers for controlling the operation of said vehicle, and an engine hood integral with the forward end of said chassis, said chassis including a structure providing rigidity to said chassis, a suspension system including a plurality of springs connected to the front portion and rear portion of said main frame at laterally spaced points and connected to said chassis to support said chassis in a level position, a plurality of shock absorbers connected between said main frame and said chassis for reducing transmission of shock and vibration from said frame to said chassis and thereby improve the ride and reduce the noise level at the operator station during operation of the vehicle.
Claim 2
Dependent Claim
168 words
A tractor comprising, a main frame including an engine and drive assembly mounted unsprung on a plurality of wheels for following the contour of the terrain, means for attaching and controlling implement position, a vehicle chassis substantially the length of the vehicle defining substantial mass including an operator platform and seat, a steering wheel and control levers for controlling the operation of said vehicle, and an engine hood integral with the forward end of said chassis, said chassis including a structure providing rigidity to said chassis, a suspension system including a plurality of springs connected to the front portion and rear portion of said main frame at laterally spaced points and connected to said chassis to support said chassis in a level position, a plurality of shock absorbers connected between said main frame and said chassis for reducing transmission of shock and vibration from said frame to said chassis and thereby improve the ride and reduce the noise level at the operator station during operation of the vehicle.
Claim 3
Dependent Claim
50 words
A tractor as set forth in claim 1 wherein said suspension system includes at least one torsion bar having radially connected arms integral with said bar, means connecting said bar and said arms between said main frame and said chassis to reduce lateral sway of said vehicle when in operation.
Claim 4
Dependent Claim
39 words
A tractor as set forth in claim 1 wherein said suspension system includes at least one sway bar connected between said main frame and said chassis to stabilize said chassis against lateral swaying when said vehicle is in operation.
Claim 5
Dependent Claim
38 words
A tractor as set forth in claim 1 wherein said suspension system includes a shock absorber positioned at each corner of said chassis to thereby reduce transmission of vibration and shock from said main frame to said chassis.
Claim 6
Dependent Claim
59 words
A tractor as set forth in claim 1 wherein said suspensions system includes two coil springs positioned at the forward end and two coils positioned at the rearward end of said chassis with each coil spring positioned transversely relative to the longitudinal center of said vehicle to thereby provide spring suspension on the four corners of said vehicle chassis.
Claim 7
Dependent Claim
57 words
A tractor as set forth in claim 1 wherein said springs include a leaf spring on the forward end and coil springs on the rearward end of said vehicle for connection to said main frame at points transversely of a longitudinal axis of said frame to provide a resilient support for said chassis on said main frame.
Claim 8
Dependent Claim
60 words
A tractor as set forth in claim 1 wherein said suspension system includes two springs on the forward end of said chassis laterally spaced relative to each other, one shock absorber positioned on the longitudinal center of said chassis at the front of said vehicle to thereby provide resilient suspension and shock absorption between said main frame and said chassis.
Claim 9
Dependent Claim
113 words
A tractor as set forth in claim 1 wherein said suspension system includes a torsion bar integral with a pair of radially extending arms, means pivotally connecting one end of said arms with said frame and means pivotally connecting the other end of said arms with said chassis, a coil spring embracing a shock absorber positioned on at least one end of said chassis with said spring and shock absorber positioned on each side of the longitudinal center of said chassis, means connecting said spring and shock absorber to said chassis, means connecting said spring and shock absorber to said arms to thereby stabilize the chassis against rolling when vehicle is in operation.
Claim 10
Dependent Claim
64 words
A tractor as set forth in claim 1 wherein said suspension system includes at least two shock absorbers and two springs positioned on said main frame and connected to said chassis at points transversely spaced relative to each other, a sway bar connected between said main frame and said chassis to stabilize said chassis against the swaying movement when said vehicle is in operation.
Claim 11
Dependent Claim
84 words
A tractor as set forth in claim 1 wherein said suspension system includes at least one leaf spring mounted transversely to the longitudinal axis of said main frame with said leaf spring connected to said chassis and said frame, a shock absorber connected at each end of said leaf spring between said chassis and said frame to thereby provide resilient suspension of said chassis and shock absorbing means to dampen vibration and shock transmitted from said main frame to said chassis on said vehicle.
References Cited (Backward Citations)
DE709770C
Cited
US2138114A
Cited
US2708133A
Cited
US2715041A
Cited
FR1215615A
Cited
DE1209144B
Cited
GB926834A
Cited
US3097879A
Cited
US3420568A
Cited
US3420313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |