Patent US3740102A successfully refreshed from Google Patents.
US3740102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor vehicle braking arrangement
Assignee: Robert Bosch GmbH
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Filing: 1972-02-03
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Granted: 1973-06-19
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Expires: 1992-02-03
Abstract
Abstract A motor vehicle is provided with a mechanical brake system which is to supply, when actuated, the impulse for operating the hydraulic brake system of a trailer which is to be towed by the motor vehicle. The mechanical brake system of the motor vehicle has a pair of articulately connected linkage rods which define with one another an angle and a pull rod connected with at least one of the linkage rods and acting upon an actuating valve of the hydraulic brake system so as to operate the valve when the mechanical brake system is actuated.
Inventors
- 👤 G Schwerin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:43
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/58; B60T13/588; B60T11/00; B60T11/10; B60T11/102; B60T11/108
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
112 words
In a motor vehicle braking arrangement, in combination, a hydraulic brake system including an actuating valve; and a mechanical brake system operative independently of but arranged to initiate operation of said hydraulic brake system, comprising a pair of articulately connected linkage rods defining with one another an angle, a brake pedal carried by a pedal arm which is pivotably mounted on a vehicle chassis and connected with one of said linkage rods, and a pull rod operatively associated with at least one of said linkage rods and with said actuating valve so as to operate the latter when said linkage rods undergo relative movement in response to depressing of said brake pedal.
Claim 2
Dependent Claim
112 words
In a motor vehicle braking arrangement, in combination, a hydraulic brake system including an actuating valve; and a mechanical brake system operative independently of but arranged to initiate operation of said hydraulic brake system, comprising a pair of articulately connected linkage rods defining with one another an angle, a brake pedal carried by a pedal arm which is pivotably mounted on a vehicle chassis and connected with one of said linkage rods, and a pull rod operatively associated with at least one of said linkage rods and with said actuating valve so as to operate the latter when said linkage rods undergo relative movement in response to depressing of said brake pedal.
Claim 3
Dependent Claim
25 words
An arrangement as defined in claim 1, wherein said linkage rods and said pull rod are articulately connected at a point common to them all.
Claim 4
Dependent Claim
30 words
An arrangement as defined in claim 2, wherein said linkage rods define with one another, and said pull rod defines with each of said linkage rods, a respective obtuse angle.
Claim 5
Dependent Claim
26 words
An arrangement as defined in claim 3, wherein the obtuse angles defined between said pull rod and the respective linkage rods are at least substantially equal.
Claim 6
Dependent Claim
56 words
An arrangement as defined in claim 1, said mechanical brake system further including at least one brake operatively connected with one of said linkage rods for actuation thereby; and further comprising a pair of force-transmitting elements respectively interposed between and operatively associated with said brake and one linkage rod and said valve and pull rod, respectively.
Claim 7
Dependent Claim
32 words
An arrangement as defined in claim 1, in combination with a selF-propelled motor vehicle and a trailer vehicle of which said mechanical brake system and said hydraulic brake system are respective components.
References Cited (Backward Citations)
GB334592A
Cited
US1947903A
Cited
DE650695C
Cited
US2262844A
Cited
FR1353955A
Cited
US3441108A
Cited
US3606495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |