Vehicle anti-theft system

Details Vehicle anti-theft system Vehicle anti-theft system

1989-07-26

1990-10-23

Olszewski, Robert P.

Fluid-pressure and analogous brake systems

Locks

188265, B60R 2508, B60T 1716

Patent

active

049646770

ABSTRACT:
Three stacked components are bolted together. The uppermost component supports a key-controlled actuator which vertically shifts three rods. One of the rods operates a switch. Each of the other two rods controls the flow of fluid in a brake line. Each brake line includes parallel passages in the intermediate and lower body components. The parallel passages are interconnectd by a bypass passage of smaller diameter than the parallel passages. The parallel passages are further interconnected by a one-way valve passage downstream of the bypass passage. Each one-way valve passage includes a spring biased ball which permits fluid flow to a brake cylinder but prevents reverse flow. Each of the other two rods is slidable into anti-theft position to block fluid flow through the associated bypass passage, but permitting fluid flow through the associated one-way valve to a brake cylinder.

REFERENCES:
patent: 3515442 (1970-06-01), Whittemore
patent: 3617663 (1971-11-01), Whittemore
patent: 3625573 (1971-12-01), Conn
patent: 4633686 (1987-01-01), Carr
patent: 4658608 (1987-04-01), Fox
patent: 4678068 (1987-07-01), Matthews et al.

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