US3871466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmissions of vehicles equipped with a retarder
Assignee: Labavia SGE SARL
•
Filing: 1972-12-04
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Granted: 1975-03-18
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Expires: 1992-12-04
Abstract
Abstract The retarder is interposed between the gear box and the axle of the vehicle. The stator of the retarder is suspended from the chassis of the vehicle independently of the gear box and of the axle and the rotor of the retarder is coupled respectively to the output shaft of the gear box and to the input shaft of the axle through two homokinetic coupling assemblies. The rotor of the retarder comprises a cylindrical internally grooved sleeve open in the direction of the gear box. The homokinetic coupling assembly situated between the gear box and the retarder has a very small and invariable axial size and ends on the side of the retarder in an externally grooved stub shaft axially slidably engaged in said sleeve. The homokinetic coupling assembly can be composed of two cardan joints juxtaposed axially against one another.
Inventors
- 👤 Pierre Etienne Bessiere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:09
CPC Classifications
B; B60; B60T; B60T1/00; B60T1/02; B60T1/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
201 words
Vehicle transmission equipped with a retarder interposed between the gear box and the axle of this vehicle, in which the stator of the retarder is suspended from the chassis of the vehicle independently of the gear box and of the axle and in which the rotor of the retarder is coupled respectively to the output shaft of the gear box and to the input shaft of the axle through two homokinetic coupling assemblies, the rotor of the retarder comprising a cylindrical internally grooved sleeve open in the direction of the gear box and mounted inside bearings borne by said stator and bearing respectively at its two axial ends two plates each bearing an induction disc through a crown of fins fixed at the periphery of the plate, the plate arranged on the side of the axle being bolted to a plate which forms part of the homokinetic coupling assembly arranged between the retarder and the axle, the homokinetic coupling assembly being situated between the gear box and the retarder and having a very small and invariable axial size, and an externally grooved stub shaft axially slidably engaged in said sleeve terminating said homokinetic coupling assembly on the side of the retarder.
Claim 2
Dependent Claim
201 words
Vehicle transmission equipped with a retarder interposed between the gear box and the axle of this vehicle, in which the stator of the retarder is suspended from the chassis of the vehicle independently of the gear box and of the axle and in which the rotor of the retarder is coupled respectively to the output shaft of the gear box and to the input shaft of the axle through two homokinetic coupling assemblies, the rotor of the retarder comprising a cylindrical internally grooved sleeve open in the direction of the gear box and mounted inside bearings borne by said stator and bearing respectively at its two axial ends two plates each bearing an induction disc through a crown of fins fixed at the periphery of the plate, the plate arranged on the side of the axle being bolted to a plate which forms part of the homokinetic coupling assembly arranged between the retarder and the axle, the homokinetic coupling assembly being situated between the gear box and the retarder and having a very small and invariable axial size, and an externally grooved stub shaft axially slidably engaged in said sleeve terminating said homokinetic coupling assembly on the side of the retarder.
Claim 3
Dependent Claim
21 words
Transmission according to claim 1, wherein the very short homokinetic coupling assembly comprises two cardan joints juxtaposed axially against one another.
Claim 4
Dependent Claim
22 words
Transmission according to claim 2, wherein the grooved sleeve traverses the rotor of the retarder axially from one side to the other.
Claim 5
Dependent Claim
40 words
Transmission according to claim 2, wherein the grooved stub shaft is coupled to the corresponding end of the very short homokinetic coupling assembly by mutual bolting of two plates fast respectively to said stub shaft and to said corresponding end.
Claim 6
Dependent Claim
22 words
Transmission according to claim 1, wherein the grooved sleeve traverses the rotor of the retarder axially from one side to the other.
Claim 7
Dependent Claim
40 words
Transmission according to claim 5, wherein the grooved stub shaft is coupled to the corresponding end of the very short homokinetic coupling assembly by mutual bolting of two plates fast respectively to said stub shaft and to said corresponding end.
Claim 8
Dependent Claim
40 words
Transmission according to claim 1, wherein the grooved stub shaft is coupled to the corresponding end of the very short homokinetic coupling assembly by mutual bolting of two plates fast respectively to said stub shaft and to said corresponding end.
Claim 9
Dependent Claim
10 words
Transmission according to claim 1, wherein the retarder is electric.
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) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |