Patent US4016946A successfully refreshed from Google Patents.
US4016946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for driving the driving wheels of a vehicle
Assignee: FORATRAC CIVILE Ste
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Filing: 1975-10-17
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Granted: 1977-04-12
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Expires: 1995-10-17
Abstract
Abstract A method and device are provided for simultaneously driving two driving wheels of a vehicle by means of a driving roller meshing with both wheels. This roller is formed of star-shaped flanges carrying bars which engage the sculptures of the tires, so as to push out the dirt collected on the tires. This dirt is easily evacuated between the arms of the roller flanges. The invention applies to the drive of any tandem set of wheels, including those of tracked vehicles and heavy vehicles.
Inventors
- 👤 Jacques A. Demichelis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:15
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/36
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
130 words
In an apparatus for driving the driving wheels of a vehicle through the intermediary of a tubular driving roller maintained between two driving wheels and meshing with the sculptures of the pneumatic tires of said wheels, the improvement comprising: at least one first bar-shaped member of said roller penetrating into one sculpture of a first tire and a second bar-shaped member penetrating into one sculpture of a second tire, at least one star-shaped flange coupled to one end of said roller, said bars being attached at least by one of their ends to the tips of the arms of said star-shaped flange and means disposed on said roller to couple the other ends of said bars to the roller at an angle oblique to the driving axis of said roller.
Claim 2
Dependent Claim
130 words
In an apparatus for driving the driving wheels of a vehicle through the intermediary of a tubular driving roller maintained between two driving wheels and meshing with the sculptures of the pneumatic tires of said wheels, the improvement comprising: at least one first bar-shaped member of said roller penetrating into one sculpture of a first tire and a second bar-shaped member penetrating into one sculpture of a second tire, at least one star-shaped flange coupled to one end of said roller, said bars being attached at least by one of their ends to the tips of the arms of said star-shaped flange and means disposed on said roller to couple the other ends of said bars to the roller at an angle oblique to the driving axis of said roller.
Claim 3
Dependent Claim
37 words
The apparatus according to claim 1, wherein the smallest distance between one bar and external surface of the tubular roller is greater than the height of one sculpture of the tire with which said roller is meshing.
Claim 4
Dependent Claim
78 words
The apparatus according to claim 1, wherein the bar-shaped members have a profile mating with the profile of the tire sculptures, and a second star-shaped flange coupled to the other end of said roller and said means to couple said bars comprises a flange located at the middle of said tubular roller and additional bar-shaped members coupled between said second star shaped flange and said flange at a different inclination from said first and second bar shaped members.
Claim 5
Dependent Claim
13 words
The apparatus according to claim 3, wherein the bar shaped members are rubber-lined.
Claim 6
Dependent Claim
31 words
The apparatus according to claim 3, wherein the spacing between two adjacent arms of the star shaped flange is sufficient to facilitate the evacuation of dirt collected inside the tire sculptures.
Claim 7
Dependent Claim
14 words
The apparatus according to claim 1, wherein each roller is actuated by motor means.
References Cited (Backward Citations)
US1198098A
Cited
US2124708A
Cited
US2717654A
Cited
DE1430950A1
Cited
US3275091A
Cited
US3433002A
Cited
US3639012A
Cited
US3788420A
Cited
US3881565A
Cited
US3923112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-11 | 1980-10-11 | 1981-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-11 | 1984-10-11 | 1985-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-11 | 1988-10-11 | 1989-04-12 | $7700.00 | Window Closed / Lapsed |