US3707313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-skid braking systems
Assignee: Fiat SpA
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Filing: 1971-01-06
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Granted: 1972-12-26
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Expires: 1991-01-06
Abstract
Abstract A vehicle braking system has an anti-skid device which periodically interrupts the supply of pressure fluid to the brake of a first wheel on a first axle. A second wheel on a second axle is equipped with known means to vary the braking effort on that second wheel in accordance with the load on the second axle. The invention provides means to vary the supply to the brake of the second wheel in accordance with fluctuations induced by the antiskid device in the supply to the brake of the first wheel.
Inventors
- 👤 Giancarlo Michellone
- 👤 Mario Palazzetti
- 👤 Giovanni Tabasso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:50
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/34; B60T8/343; B60T8/18; B60T8/1837; B60T8/185
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
216 words
In a vehicle having a first wheel on a first axle and a second wheel on a second axle, a braking system for the wheels including a fluid pressure circuit and a brake on each wheel connected to the circuit, an anti-skid braking regulating device connected in the circuit to regulate the pressure supplied to the brake of the first wheel during braking of the vehicle, means to vary the pressure applied to the brake of the second wheel according to the load on the second axle, and means to vary the pressure applied to the brake of the second wheel according to variations introduced by the anti-skid device in the pressure applied to the brake of the first wheel, the means to vary the pressure applied to the brake of the second wheel according to the load on the second axle comprising a corrector valve having a rotatable member and pivotally connected rod means to rotate such member on relative movement on a body of the vehicle relative to the second axle, and the means to vary the pressure applied to the brake of the second wheel according to the variations induced by the anti-skid device in the pressure applied to the first wheel comprising actuator means to vary the length of the rod means.
Claim 2
Dependent Claim
216 words
In a vehicle having a first wheel on a first axle and a second wheel on a second axle, a braking system for the wheels including a fluid pressure circuit and a brake on each wheel connected to the circuit, an anti-skid braking regulating device connected in the circuit to regulate the pressure supplied to the brake of the first wheel during braking of the vehicle, means to vary the pressure applied to the brake of the second wheel according to the load on the second axle, and means to vary the pressure applied to the brake of the second wheel according to variations introduced by the anti-skid device in the pressure applied to the brake of the first wheel, the means to vary the pressure applied to the brake of the second wheel according to the load on the second axle comprising a corrector valve having a rotatable member and pivotally connected rod means to rotate such member on relative movement on a body of the vehicle relative to the second axle, and the means to vary the pressure applied to the brake of the second wheel according to the variations induced by the anti-skid device in the pressure applied to the first wheel comprising actuator means to vary the length of the rod means.
Claim 3
Dependent Claim
65 words
The vehicle of claim 1, in which the actuator means comprises a fluid pressure cylinder containing a plunger acted on by a spring, and having a port for fluid to enter the cylinder and act on the plunger against the action of the spring, the port being connected by a conduit to the circuit supplying fluid under pressure to the brake of the first wheel.
Claim 4
Dependent Claim
19 words
The vehicle of claim 2, including a restriction in the conduit leading to the port of the actuator cylinder.
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) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |