Brake tester

Details Brake tester Brake tester

1976-06-28

1977-12-13

Gill, James J.

Measuring and testing

With fluid pressure

Fluid pressure brake system or unit

73121, G01L 528

Patent

active

040622240

ABSTRACT:
Apparatus for the determination of the brake actuation and release time for pneumatic brake systems. The brake tester is pneumatically connected to both an external source of pressure and the vehicle reservoir with a solenoid valve disposed between the external source and the vehicle reservoir so that an operator may incrementally increase the pressure within the reservoir. The brake tester includes a timing circuit which begins to run upon movement of the vehicle brake pedal and stops upon the attainment of predetermined pressure value within the vehicle brake chambers. The timing circuit also includes memory means to store the results of the brake actuation test so that both a brake actuation and release test may be sequentially conducted without interruption.

REFERENCES:
patent: 2509816 (1950-05-01), Elson
patent: 3088311 (1963-05-01), Dobrikin et al.
patent: 3772914 (1973-11-01), Phol et al.
patent: 3870869 (1975-03-01), Eberle et al.

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