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US3756661A Expired / Lapsed US ⏱️ 0.0 years remaining

Anti-skid braking system for towed vehicles

Assignee: Fiat SpA
•
Filing: 1971-07-22
•
Granted: 1973-09-04
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Expires: 1991-07-22
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Abstract

Abstract An anti-skid braking system for trailers which are to be towed by tractor vehicles having their own antiskid braking system is disclosed. In this system the extra expense of duplicating much of a tractor vehicle''s anti-skid braking system is a trailer is avoided by providing means for connecting the brakes of the trailer into the braking pressure circuit of tractor vehicle, means for modulating the braking pressure applied to the brakes of each wheel, and means for connecting the modulating means of each trailer wheel to the braking pressure control circuit of the vehicle. Preferably the trailer is coupled to receive the same breaking pressure modulating signals which are applied to the brakes of the rear wheels of the tractor vehicle, and preferably the left and right hand side of the trailer receive the signals respectively applied to the left and right hand side near wheels of the tractor vehicle.

Inventors

  • 👤 G Michellone

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 06:41
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/321; B60T8/323; B60T8/34; B60T8/343

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 182 words
An anti-skid braking system for a trailer connectable to a tractor vehicle of the type having a plurality of wheels and an anti-skid braking system including braking pressure generating means, pressure controlled braking means for each wheel, electronic anti-skid control means associated with at least one wheel on each side of said tractor vehicle and electrically controlled pressure modulating means, said pressure modulating means and controlled by said anti-skid control means, said trailer having a plurality of wheels, each of said trailer wheels being provided with braking means, means for connecting said trailer wheel braking means to said tractor vehicle braking pressure generating means, each of said trailer wheel braking means being provided with pressure modulating means, means for connecting the pressure modulating means of said trailer wheel braking means on one side of said trailer to the anti-skid control means associated with the same side of said tractor and means for connecting the pressure modulating means of said trailer wheel braking means on the other side of said trailer to the anti-skid control means for the other side of said tractor.
Claim 2
Dependent Claim 182 words
An anti-skid braking system for a trailer connectable to a tractor vehicle of the type having a plurality of wheels and an anti-skid braking system including braking pressure generating means, pressure controlled braking means for each wheel, electronic anti-skid control means associated with at least one wheel on each side of said tractor vehicle and electrically controlled pressure modulating means, said pressure modulating means and controlled by said anti-skid control means, said trailer having a plurality of wheels, each of said trailer wheels being provided with braking means, means for connecting said trailer wheel braking means to said tractor vehicle braking pressure generating means, each of said trailer wheel braking means being provided with pressure modulating means, means for connecting the pressure modulating means of said trailer wheel braking means on one side of said trailer to the anti-skid control means associated with the same side of said tractor and means for connecting the pressure modulating means of said trailer wheel braking means on the other side of said trailer to the anti-skid control means for the other side of said tractor.

References Cited (Backward Citations)

US3093422A Cited
US3479094A Cited
US3503654A Cited
US3667813A Cited
US3602553A Cited
US3620577A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-09-03 1977-03-05 1977-09-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-09-03 1981-03-05 1981-09-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-09-03 1985-03-05 1985-09-04 $7700.00 Window Closed / Lapsed

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