Portable testing apparatus for testing of fluid-operated brake s

Details Portable testing apparatus for testing of fluid-operated brake s Portable testing apparatus for testing of fluid-operated brake s

1975-06-09

1976-05-25

Myracle, Jerry W.

Measuring and testing

Brake testing

G01L 528

Patent

active

039584542

ABSTRACT:
A housing of the apparatus has a device for connection to a source of pressurized air, and is provided with first and second connectors for connection to brake system lines. A compressed air tank is located in the housing, and at least three double manometers are provided. Fluid couplings are connected with the manometers. A first fluid line connects the air tank with the device and has a one-way valve and an adjustable pressure regulator interposed in it, a second fluid line connects the air tank with the first connector, and a third fluid line connects the air tank with the second connector and has a one-way valve interposed in it. A multi-position manually operable air spring regulating valve is interposed in the second line and has a valve body, an operating handle for moving the valve body between two operative end positions and a centering-spring arrangement for centering the handle in a rest position in which the valve body is in an intermediate blocking position. A control arrangement is connected in circuit with the air spring valve and connects the air spring and the first connector. This control arrangement includes a one-way valve and a blocking valve intermediate the air tank and the first connector and another blocking valve intermediate the air tank and the second connector.

REFERENCES:
patent: 3312104 (1967-04-01), Hegenbart
patent: 3772914 (1973-11-01), Pohl et al.

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